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Merge pull request #3 from ismagom/master 

Merge from ismagom
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suttonpd 2014-04-11 10:43:00 +01:00
parent d87988a97a 644e91e5df
commit f2ae9d0217
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170
CMakeLists.txt
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@ -1,42 +1,156 @@
#
# Copyright 2012-2013 The libLTE Developers. See the
# COPYRIGHT file at the top-level directory of this distribution.
#
# This file is part of the libLTE library.
#
# libLTE is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# libLTE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Prevent in-tree builds
########################################################################
if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
message(FATAL_ERROR "Prevented in-tree build. This is bad practice.")
endif(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
cmake_minimum_required (VERSION 2.6)
project (osldlib)
# The version number.
set (OSLDLIB_VERSION_MAJOR 0)
set (OSLDLIB_VERSION_MINOR 0)
########################################################################
# Project setup
########################################################################
CMAKE_MINIMUM_REQUIRED (VERSION 2.6)
PROJECT (LIBLTE)
LIST(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/modules")
INCLUDE(libLTEPackage) #setup cpack
include(CTest)
set( CTEST_MEMORYCHECK_COMMAND valgrind )
CONFIGURE_FILE(
"${CMAKE_CURRENT_SOURCE_DIR}/CTestCustom.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/CTestCustom.cmake"
IMMEDIATE @ONLY)
########################################################################
# Install Dirs
########################################################################
SET(RUNTIME_DIR bin)
SET(LIBRARY_DIR lib)
SET(INCLUDE_DIR include)
SET(DOC_DIR "share/doc/${CPACK_PACKAGE_NAME}")
SET(DATA_DIR share/${CPACK_PACKAGE_NAME})
set(CPACK_PACKAGE_VERSION_MAJOR ${OSLDLIB_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${OSLDLIB_VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH "1")
set(CPACK_SOURCE_GENERATOR "TBZ2")
set(CPACK_SOURCE_PACKAGE_FILE_NAME
"${CMAKE_PROJECT_NAME}-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")
set(CPACK_SOURCE_IGNORE_FILES
"${CMAKE_CURRENT_BINARY_DIR};/.bzr/;~$;${CPACK_SOURCE_IGNORE_FILES}")
include(CPack)
add_custom_target(dist COMMAND ${CMAKE_MAKE_PROGRAM} package_source)
IF(NOT CMAKE_BUILD_TYPE)
SET(CMAKE_BUILD_TYPE Release)
MESSAGE(STATUS "Build type not specified: defaulting to Release.")
ENDIF(NOT CMAKE_BUILD_TYPE)
SET(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "")
option(DEBUG "Compiles with debugging symbols and no optimizations" OFF)
########################################################################
# Compiler specific setup
########################################################################
IF(CMAKE_COMPILER_IS_GNUCXX)
# do something
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
if(DEBUG)
message("-- Configuring debugging CFLAGS")
set(CFDEB "-O0 -g -rdynamic")
else()
set(CFDEB "-O2")
endif()
IF(CMAKE_COMPILER_IS_GNUCC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wno-format-extra-args -Winline -Wno-unused-result -Wno-format -std=c99 -D_GNU_SOURCE")
ENDIF(CMAKE_COMPILER_IS_GNUCC)
set(CMAKE_C_FLAGS "${CFDEB} -Wall -Wno-format-extra-args -Winline -Wno-unused-result -Wno-format -std=c99 -D_GNU_SOURCE")
set(CMAKE_BINARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
IF(MSVC)
INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/msvc) #missing headers
ADD_DEFINITIONS(-D_WIN32_WINNT=0x0501) #minimum version required is windows xp
ADD_DEFINITIONS(-DNOMINMAX) #disables stupidity and enables std::min and std::max
ADD_DEFINITIONS( #stop all kinds of compatibility warnings
-D_SCL_SECURE_NO_WARNINGS
-D_CRT_SECURE_NO_WARNINGS
-D_CRT_SECURE_NO_DEPRECATE
-D_CRT_NONSTDC_NO_DEPRECATE
)
ADD_DEFINITIONS(/MP) #build with multiple processors
ENDIF(MSVC)
### INCLUDES
include_directories("{CMAKE_CURRENT_SOURCE_DIR}/include")
IF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
# The following is needed for weak linking to work under OS X
SET(CMAKE_SHARED_LINKER_FLAGS "-undefined dynamic_lookup")
ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
add_subdirectory(examples)
add_subdirectory(lib)
########################################################################
# Create uninstall targets
########################################################################
CONFIGURE_FILE(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
IMMEDIATE @ONLY)
ADD_CUSTOM_TARGET(uninstall
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
########################################################################
# Macro to add -fPIC property to static libs
########################################################################
MACRO(LIBLTE_SET_PIC)
IF( CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" )
SET_TARGET_PROPERTIES(${ARGV} PROPERTIES COMPILE_FLAGS -fPIC)
ENDIF( CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" )
ENDMACRO(LIBLTE_SET_PIC)
########################################################################
# A macro for passing lists between different directories
# through an internal cache variable.
########################################################################
MACRO (APPEND_INTERNAL_LIST LIST_NAME VALUE)
# If the list in not in the cache, create it.
IF (${LIST_NAME})
SET (${LIST_NAME} "${${LIST_NAME}};${VALUE}" CACHE INTERNAL "Internal
variable")
ELSE (${LIST_NAME})
SET (${LIST_NAME} "${VALUE}" CACHE INTERNAL "Internal variable")
ENDIF (${LIST_NAME})
ENDMACRO (APPEND_INTERNAL_LIST)
########################################################################
# Print summary
########################################################################
MESSAGE(STATUS "Using install prefix: ${CMAKE_INSTALL_PREFIX}")
MESSAGE(STATUS "Building for version: ${VERSION}")
########################################################################
# Add general includes and dependencies
########################################################################
INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/lte/include)
INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/cuhd/include)
INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/graphics/include)
########################################################################
# Add the subdirectories
########################################################################
ADD_SUBDIRECTORY(lte)
ADD_SUBDIRECTORY(cuhd)
ADD_SUBDIRECTORY(graphics)
ADD_SUBDIRECTORY(examples)

542
COPYRIGHT Normal file
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@ -0,0 +1,542 @@
Copyright (C) 2013-2014 Ismael Gomez Miguelez, <gomezi@tcd.ie>. All rights reserved.
The following copyright notices are for libraries used within libLTE:
-----------------------------------------------------------
CLibrary.py
-----------------------------------------------------------
Copyright (c) 2003-2011 Paul T. McGuire
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
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permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-----------------------------------------------------------
FEC Library - Version 3.0.1 - August 7th, 2007
-----------------------------------------------------------
COPYRIGHT
This package is copyright 2006 by Phil Karn, KA9Q. It may be used
under the terms of the GNU Lesser General Public License (LGPL).
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
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FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
"copyright" line and a pointer to where the full notice is found.
<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!

13
CTestConfig.cmake Normal file
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@ -0,0 +1,13 @@
## This file should be placed in the root directory of your project.
## Then modify the CMakeLists.txt file in the root directory of your
## project to incorporate the testing dashboard.
## # The following are required to uses Dart and the Cdash dashboard
## ENABLE_TESTING()
## INCLUDE(CTest)
set(CTEST_PROJECT_NAME "libLTE")
set(CTEST_NIGHTLY_START_TIME "00:00:00 GMT")
set(CTEST_DROP_METHOD "http")
set(CTEST_DROP_SITE "my.cdash.org")
set(CTEST_DROP_LOCATION "/submit.php?project=libLTE")
set(CTEST_DROP_SITE_CDASH TRUE)

15
CTestCustom.cmake.in Normal file
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@ -0,0 +1,15 @@
SET(CTEST_CUSTOM_MEMCHECK_IGNORE
# Ignore memcheck for plots. QT errors
waterfallplot_test
scatterplot_test
realplot_test
complexplot_test
# Ignore these to, they take too lonk
fft_normal
fft_extened
chest_test_all_cellids
)

92
README.md
View File

@ -7,15 +7,30 @@ The license is LGPLv3.
The project contains a set of Python tools for the automatic code generation of modules for popular SDR frameworks, including GNURadio, ALOE++, IRIS, and OSSIE. These tools are easy to use and adapt for generating targets for specific platforms or frameworks.
Support
Current Status
===============
The following parts are available:
* Physical Broadcast channel (PBCH) eNodeB and UE part. The UE supports multi-antenna transmitters
* Synchronization and CFO estimation/correction
* Equalization
* UE receiver verified with live LTE signals
Hardware
========
Mailing list: https://lists.sourceforge.net/lists/listinfo/liblte-users
The library currently uses Ettus Universal Hardware Driver (UHD). Thus, any hardware supported by UHD can be used. There is no sampling rate conversion, therefore the hardware should support 30.72 MHz clock in order to work correctly with LTE sampling frequencies and decode signals from live LTE base stations.
Download & Install Instructions
=================================
* Requirements: Currently, the library requires libfftw, although we plan make this dependency optional in the future. Also, QT4 is needed for graphics visualization. Compilation is possible without QT4, although graphics will be disabled.
To install QT4 and libfftw use your distribution packet management system, for instance in ubuntu you can run: `sudo apt-get install libfftw3-dev libqt4-dev` to install all requirements.
Finally, to download and build libLTE, just run:
```
git clone https://github.com/ismagom/libLTE.git
cd libLTE
@ -23,42 +38,61 @@ mkdir build
cd build
cmake ../
make
sudo make install
```
Cell Search Example
====================
The library can also be installed using the command ```sudo make install```.
This program uses any hardware supported by the UHD driver to scan an LTE band for active cells. See http://niviuk.free.fr/lte_band.php for a list of available bands. The program first obtains a power spectral density of the entire band. For all frequencies with an RSSI higher than a threshold, it tries to find the LTE Primary Synchronization Signal (PSS) and then identifies the CELL ID using the Secondary Synchronization Signal (SSS). Finally, it estimates the Carrier Frequency Offset (CFO) and Sampling Frequency Offset (SFO).
Examples
==========
* eNodeB and UE PBCH example
Setup one or two computers connected to two USRP or UHD-compatible hardware. From the eNodeB, type
```
examples/pbch_enodeb -f [frequency_in_Hz] -c [cell_id] [-a [UHD args]] [-h for more commands]
```
From the UE, type
```
examples/pbch_ue -f [frequency_in_Hz] -c [cell_id] [-a [UHD args]] [-h for more commands]
```
And the output should look something like the following video. In this example, we removed the transmitter and receiver antennas in the middle of the demonstration, showing how reception is still possible (despite with some erros).
https://www.dropbox.com/s/txh1nuzdb0igq5n/demo_pbch.ogv
![Screenshopt of the PBCH example output](pbch_capture.png "Screenshopt of the PBCH example output")
If you don't have a pair of USRP, you can also test the demo by writing the samples to a file and then reading them:
From the eNodeB, type
```
examples/pbch_enodeb -o [output_file] -c [cell_id] [-h for more commands]
```
From the UE, type
```
examples/pbch_ue -i [input_file] -c [cell_id] [-h for more commands]
```
* Cell Search Example
This program uses any hardware supported by the UHD driver to scan an LTE band for active cells. See http://niviuk.free.fr/lte_band.php for a list of available bands. The program first obtains a power spectral density of the entire band. For all frequencies with an RSSI higher than a threshold, it tries to find the LTE Primary Synchronization Signal (PSS) and then identifies the CELL ID using the Secondary Synchronization Signal (SSS). Finally, it estimates the Carrier Frequency Offset (CFO) and Sampling Frequency Offset (SFO) and decodes the Master Information Block (MIB) from the PBCH.
For instance, the command:
``` pss_scan_usrp -b 3 ```
``` examples/scan_mib -b 3 ```
Scans the LTE band 3 (1805 to 1880 MHz). Note that you need a hardware supporting these frequencies (e.g. SBX daughterboard for USRP). The program outputs the following:
Scans the LTE band 3 (1805 to 1880 MHz). Note that you need a hardware supporting these frequencies (e.g. SBX daughterboard for USRP). For more command arguments, type ``` examples/mib_scan_usrp -h ```
```
Opening UHD device...
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
RSSI scan: 749 freqs in band 3, RSSI threshold -30.00 dBm
Freq 1879.0 Mhz - RSSI: -43.96 dBm
Done. Starting PSS search on 75 channels
UHD Warning:
The hardware does not support the requested RX sample rate:
Target sample rate: 1.920000 MSps
Actual sample rate: 1.923077 MSps
[199/749]: EARFCN 1399 Freq. 1824.90 MHz No PSS found
[200/749]: FOUND EARFCN 1400 Freq. 1825.00 MHz, RSSI -22.43 dBm, PAR 15.86 dB, CFO=-0.25 KHz, SFO=+3.099 KHz, CELL_ID=150
[433/749]: EARFCN 1633 Freq. 1848.30 MHz No PSS found
Done
```
indicating that a Cell with ID 150 has been found at 1825.0 MHz. PAR indicates the peak-to-average ratio (in dB) at the output of the PSS correlator.
For more command arguments, type ``` pss_scan_usrp --help ```
Support
========
Mailing list: https://lists.sourceforge.net/lists/listinfo/liblte-users

22
cmake/FindFFTWS.cmake
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@ -1,22 +0,0 @@
# - Find FFTW
# Find the native FFTW includes and library
#
# FFTW_INCLUDES - where to find fftw3.h
# FFTW_LIBRARIES - List of libraries when using FFTW.
# FFTW_FOUND - True if FFTW found.
if (FFTWS_INCLUDES)
# Already in cache, be silent
set (FFTWS_FIND_QUIETLY TRUE)
endif (FFTWS_INCLUDES)
find_path (FFTWS_INCLUDES fftw3.h)
SET(CMAKE_FIND_LIBRARY_SUFFIXES .a)
find_library (FFTWfS_LIBRARIES NAMES fftw3f)
find_library (FFTWnS_LIBRARIES NAMES fftw3)
set(FFTWS_LIBRARIES ${FFTWfS_LIBRARIES} ${FFTWnS_LIBRARIES})
include (FindPackageHandleStandardArgs)
find_package_handle_standard_args (FFTWS DEFAULT_MSG FFTWS_LIBRARIES FFTWS_INCLUDES)
mark_as_advanced (FFTWS_LIBRARIES FFTWS_INCLUDES)

55
cmake/modules/FindFFTW3F.cmake Normal file
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@ -0,0 +1,55 @@
#
# Copyright 2012-2013 The Iris Project Developers. See the
# COPYRIGHT file at the top-level directory of this distribution
# and at http://www.softwareradiosystems.com/iris/copyright.html.
#
# This file is part of the Iris Project.
#
# Iris is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# Iris is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
# - Try to find fftw3f - the single-precision version of FFTW3
# Once done this will define
# FFTW3F_FOUND - System has fftw3f
# FFTW3F_INCLUDE_DIRS - The fftw3f include directories
# FFTW3F_LIBRARIES - The libraries needed to use fftw3f
# FFTW3F_DEFINITIONS - Compiler switches required for using fftw3f
find_package(PkgConfig)
pkg_check_modules(PC_FFTW3F "fftw3f >= 3.0")
set(FFTW3F_DEFINITIONS ${PC_FFTW3F_CFLAGS_OTHER})
find_path(FFTW3F_INCLUDE_DIR
NAMES fftw3.h
HINTS ${PC_FFTW3F_INCLUDEDIR} ${PC_FFTW3F_INCLUDE_DIRS} $ENV{FFTW3_DIR}/include
PATHS /usr/local/include
/usr/include )
find_library(FFTW3F_LIBRARY
NAMES fftw3f libfftw3f libfftw3f-3
HINTS ${PC_FFTW3F_LIBDIR} ${PC_FFTW3F_LIBRARY_DIRS} $ENV{FFTW3_DIR}/lib
PATHS /usr/local/lib
/usr/lib)
set(FFTW3F_LIBRARIES ${FFTW3F_LIBRARY} )
set(FFTW3F_INCLUDE_DIRS ${FFTW3F_INCLUDE_DIR} )
include(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set FFTW3F_FOUND to TRUE
# if all listed variables are TRUE
find_package_handle_standard_args(fftw3f DEFAULT_MSG
FFTW3F_LIBRARY FFTW3F_INCLUDE_DIR)
mark_as_advanced(FFTW3F_INCLUDE_DIR FFTW3F_LIBRARY )

141
cmake/modules/FindQwt.cmake Normal file
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@ -0,0 +1,141 @@
#
# Copyright 2012-2013 The Iris Project Developers. See the
# COPYRIGHT file at the top-level directory of this distribution
# and at http://www.softwareradiosystems.com/iris/copyright.html.
#
# This file is part of the Iris Project.
#
# Iris is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# Iris is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
# - Try to find the Qwt includes and library
# - Defines the following:
#
# QWT_FOUND - system has Qwt
# QWT_INCLUDE_DIR - where to find qwt.h
# QWT_INCLUDE_DIRS - the qwt include directories
# QWT_LIBRARY - where to find the Qwt library (not for general use)
# QWT_LIBRARIES - the libraries to link against to use Qwt
# QWT_MAJOR_VERSION - major version
# QWT_MINOR_VERSION - minor version
# QWT_PATCH_VERSION - patch version
# QWT_VERSION_STRING - version (ex. 5.2.1)
SET(QWT_FOUND "NO")
FIND_PATH(QWT_INCLUDE_DIR qwt.h
/usr/local/qwt/include
/usr/local/include
/usr/include/qwt
/usr/include/qwt-qt4
/usr/include/qwt5
/usr/include
/opt/local/include/qwt #macports path
$ENV{QWT_DIR}/include
$ENV{QWT_DIR}/src
$ENV{QWTDIR}/include
$ENV{QWTDIR}/src
$ENV{QWT_ROOT}/include
$ENV{QWT_ROOT}/src
$ENV{QWTROOT}/include
$ENV{QWTROOT}/src
)
SET(QWT_INCLUDE_DIRS ${QWT_INCLUDE_DIR})
# version
SET(_VERSION_FILE ${QWT_INCLUDE_DIR}/qwt_global.h)
IF(EXISTS ${_VERSION_FILE} )
FILE( STRINGS ${_VERSION_FILE} _VERSION_LINE REGEX "define[ ]+QWT_VERSION_STR")
IF( _VERSION_LINE )
STRING( REGEX REPLACE ".*define[ ]+QWT_VERSION_STR[ ]+\"(.*)\".*" "\\1" QWT_VERSION_STRING "${_VERSION_LINE}" )
STRING( REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\1" QWT_MAJOR_VERSION "${QWT_VERSION_STRING}" )
STRING( REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\2" QWT_MINOR_VERSION "${QWT_VERSION_STRING}" )
STRING( REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\3" QWT_PATCH_VERSION "${QWT_VERSION_STRING}" )
ENDIF()
ENDIF()
# check version
SET( _QWT_VERSION_MATCH TRUE )
IF( Qwt_FIND_VERSION AND QWT_VERSION_STRING )
IF( Qwt_FIND_VERSION_EXACT )
IF( NOT Qwt_FIND_VERSION VERSION_EQUAL QWT_VERSION_STRING )
SET( _QWT_VERSION_MATCH FALSE )
ENDIF()
ELSE()
IF( QWT_VERSION_STRING VERSION_LESS Qwt_FIND_VERSION )
SET( _QWT_VERSION_MATCH FALSE )
ENDIF()
ENDIF()
ENDIF()
SET(POTENTIAL_LIBRARY_PATHS /usr/local/qwt/lib /usr/local/lib /usr/lib /opt/local/lib
$ENV{QWT_DIR}/lib $ENV{QWTDIR}/lib $ENV{QWT_ROOT}/lib $ENV{QWTROOT}/lib)
SET(QWT_NAMES ${QWT_NAMES} qwt qwt-qt4 qwt5 )
FIND_LIBRARY(QWT_LIBRARY
NAMES ${QWT_NAMES}
PATHS ${POTENTIAL_LIBRARY_PATHS}
)
MARK_AS_ADVANCED(QWT_LIBRARY)
IF (QWT_LIBRARY)
IF(WIN32 AND NOT CYGWIN)
SET(QWT_NAMES_DEBUG qwtd qwtd-qt4 qwtd5 )
FIND_LIBRARY(QWT_LIBRARY_DEBUG
NAMES ${QWT_NAMES_DEBUG}
PATHS ${POTENTIAL_LIBRARY_PATHS}
)
MARK_AS_ADVANCED(QWT_LIBRARY_DEBUG)
IF(QWT_LIBRARY_DEBUG)
SET(QWT_LIBRARIES optimized ${QWT_LIBRARY} debug ${QWT_LIBRARY_DEBUG} CACHE DOC "QWT library files")
ELSE(QWT_LIBRARY_DEBUG)
SET(QWT_LIBRARIES ${QWT_LIBRARY} CACHE DOC "QWT library files")
ENDIF(QWT_LIBRARY_DEBUG)
ADD_DEFINITIONS(-DQWT_DLL)
ELSE(WIN32 AND NOT CYGWIN)
SET(QWT_LIBRARIES ${QWT_LIBRARY} CACHE DOC "QWT library files")
ENDIF(WIN32 AND NOT CYGWIN)
SET(QWT_FOUND "YES")
IF (CYGWIN)
IF(BUILD_SHARED_LIBS)
# No need to define QWT_USE_DLL here, because it's default for Cygwin.
ELSE(BUILD_SHARED_LIBS)
SET (QWT_DEFINITIONS -DQWT_STATIC)
ENDIF(BUILD_SHARED_LIBS)
ENDIF (CYGWIN)
ENDIF (QWT_LIBRARY)
# handle the QUIETLY and REQUIRED arguments
INCLUDE( FindPackageHandleStandardArgs )
IF( CMAKE_VERSION LESS 2.8.3 )
FIND_PACKAGE_HANDLE_STANDARD_ARGS( Qwt DEFAULT_MSG QWT_LIBRARY QWT_INCLUDE_DIR _QWT_VERSION_MATCH )
ELSE()
FIND_PACKAGE_HANDLE_STANDARD_ARGS( Qwt REQUIRED_VARS QWT_LIBRARY QWT_INCLUDE_DIR _QWT_VERSION_MATCH VERSION_VAR QWT_VERSION_STRING )
ENDIF()
MARK_AS_ADVANCED(QWT_INCLUDE_DIR QWT_LIBRARY)

0
cmake/FindUHD.cmake → cmake/modules/FindUHD.cmake
View File

29
cmake/modules/FindVolk.cmake Normal file
View File

@ -0,0 +1,29 @@
INCLUDE(FindPkgConfig)
PKG_CHECK_MODULES(PC_VOLK volk QUIET)
FIND_PATH(
VOLK_INCLUDE_DIRS
NAMES volk.h
HINTS $ENV{VOLK_DIR}/include/volk
${CMAKE_INSTALL_PREFIX}/include/volk
${PC_VOLK_INCLUDE_DIR}
PATHS /usr/local/include/volk
/usr/include/volk
)
FIND_LIBRARY(
VOLK_LIBRARIES
NAMES volk
HINTS $ENV{VOLK_DIR}/lib
${CMAKE_INSTALL_PREFIX}/lib
${CMAKE_INSTALL_PREFIX}/lib64
${PC_VOLK_LIBDIR}
PATHS /usr/local/lib
/usr/local/lib64
/usr/lib
/usr/lib64
)
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(VOLK DEFAULT_MSG VOLK_LIBRARIES VOLK_INCLUDE_DIRS)
MARK_AS_ADVANCED(VOLK_LIBRARIES VOLK_INCLUDE_DIRS)

85
cmake/modules/libLTEPackage.cmake Normal file
View File

@ -0,0 +1,85 @@
#
# Copyright 2012-2013 The Iris Project Developers. See the
# COPYRIGHT file at the top-level directory of this distribution
# and at http://www.softwareradiosystems.com/iris/copyright.html.
#
# This file is part of the Iris Project.
#
# Iris is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# Iris is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
SET(CPACK_PACKAGE_DESCRIPTION "libLTE")
SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY "LTE library for SDR.")
SET(CPACK_PACKAGE_NAME "liblte")
SET(CPACK_DEBIAN_PACKAGE_DEPENDS "libc6 (>= 2.3.6), libgcc1 (>= 1:4.1), libboost-dev (>= 1.35)")
SET(CPACK_PACKAGE_CONTACT "Ismael Gomez ")
SET(CPACK_PACKAGE_VENDOR "University of Dublin, Trinity College")
SET(CPACK_PACKAGE_VERSION_MAJOR "0")
SET(CPACK_PACKAGE_VERSION_MINOR "1")
SET(CPACK_PACKAGE_VERSION_PATCH "0")
SET(VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")
########################################################################
# Setup additional defines for OS types
########################################################################
IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
SET(LINUX TRUE)
ENDIF()
IF(LINUX AND EXISTS "/etc/debian_version")
SET(DEBIAN TRUE)
ENDIF()
IF(LINUX AND EXISTS "/etc/redhat-release")
SET(REDHAT TRUE)
ENDIF()
########################################################################
# Set generator type for recognized systems
########################################################################
IF(CPACK_GENERATOR)
#already set
ELSEIF(APPLE)
SET(CPACK_GENERATOR PackageMaker)
ELSEIF(WIN32)
SET(CPACK_GENERATOR NSIS)
ELSEIF(DEBIAN)
SET(CPACK_GENERATOR DEB)
ELSEIF(REDHAT)
SET(CPACK_GENERATOR RPM)
ELSE()
SET(CPACK_GENERATOR TGZ)
ENDIF()
########################################################################
# Setup CPack Debian
########################################################################
SET(CPACK_DEBIAN_PACKAGE_DEPENDS "libboost-dev")
########################################################################
# Setup CPack RPM
########################################################################
SET(CPACK_RPM_PACKAGE_REQUIRES "boost-devel")
########################################################################
# Setup CPack NSIS
########################################################################
SET(CPACK_NSIS_MODIFY_PATH ON)
SET(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}-${CMAKE_SYSTEM_PROCESSOR}")
INCLUDE(CPack)

26
cmake_uninstall.cmake.in Normal file
View File

@ -0,0 +1,26 @@
if(POLICY CMP0007)
cmake_policy(SET CMP0007 OLD)
endif(POLICY CMP0007)
if (NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
message(FATAL_ERROR "Cannot find install manifest: \"@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt\"")
endif(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
file(READ "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt" files)
string(REGEX REPLACE "\n" ";" files "${files}")
list(REVERSE files)
foreach (file ${files})
message(STATUS "Uninstalling \"$ENV{DESTDIR}${file}\"")
if (EXISTS "$ENV{DESTDIR}${file}")
execute_process(
COMMAND @CMAKE_COMMAND@ -E remove "$ENV{DESTDIR}${file}"
OUTPUT_VARIABLE rm_out
RESULT_VARIABLE rm_retval
)
if(NOT ${rm_retval} EQUAL 0)
message(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
endif (NOT ${rm_retval} EQUAL 0)
else (EXISTS "$ENV{DESTDIR}${file}")
message(STATUS "File \"$ENV{DESTDIR}${file}\" does not exist.")
endif (EXISTS "$ENV{DESTDIR}${file}")
endforeach(file)

36
cuhd/CMakeLists.txt Normal file
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@ -0,0 +1,36 @@
#
# Copyright 2012-2013 The libLTE Developers. See the
# COPYRIGHT file at the top-level directory of this distribution.
#
# This file is part of the libLTE library.
#
# libLTE is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# libLTE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Install headers
########################################################################
INSTALL(DIRECTORY include/ DESTINATION "${INCLUDE_DIR}"
FILES_MATCHING PATTERN "*.h"
PATTERN ".svn" EXCLUDE
)
########################################################################
# Add the subdirectories
########################################################################
ADD_SUBDIRECTORY(lib)

57
cuhd/include/cuhd.h Normal file
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@ -0,0 +1,57 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include "cuhd/cuhd_utils.h"
int cuhd_open(char *args, void **handler);
int cuhd_close(void *h);
int cuhd_start_rx_stream(void *h);
int cuhd_start_rx_stream_nsamples(void *h, int nsamples);
int cuhd_stop_rx_stream(void *h);
bool cuhd_rx_wait_lo_locked(void *h);
double cuhd_set_rx_srate(void *h, double freq);
double cuhd_set_rx_gain(void *h, double gain);
double cuhd_set_rx_freq(void *h, double freq);
int cuhd_recv(void *h, void *data, int nsamples, int blocking);
double cuhd_set_tx_srate(void *h, double freq);
double cuhd_set_tx_gain(void *h, double gain);
double cuhd_set_tx_freq(void *h, double freq);
int cuhd_send(void *h, void *data, int nsamples, int blocking);
#ifdef __cplusplus
}
#endif

30
cuhd/include/cuhd/cuhd_utils.h Normal file
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@ -0,0 +1,30 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
int cuhd_rssi_scan(void *uhd, float *freqs, float *rssi, int nof_bands, double fs, int nsamp);

43
cuhd/lib/CMakeLists.txt Normal file
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@ -0,0 +1,43 @@
#
# Copyright 2012-2013 The libLTE Developers. See the
# COPYRIGHT file at the top-level directory of this distribution.
#
# This file is part of the libLTE library.
#
# libLTE is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# libLTE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
FIND_PACKAGE(UHD)
IF(UHD_FOUND)
ADD_LIBRARY(cuhd cuhd_imp.cpp cuhd_utils.c)
INCLUDE_DIRECTORIES(${UHD_INCLUDE_DIRS})
TARGET_LINK_LIBRARIES(cuhd ${UHD_LIBRARIES})
LIBLTE_SET_PIC(cuhd)
APPEND_INTERNAL_LIST(OPTIONAL_LIBS cuhd)
INSTALL(TARGETS cuhd DESTINATION ${LIBRARY_DIR})
MESSAGE(STATUS " cuhd UHD C wrapper will be installed.")
ELSE(UHD_FOUND)
MESSAGE(STATUS " UHD driver not found. CUHD library is not generated")
ENDIF(UHD_FOUND)

38
cuhd/lib/cuhd_handler.hpp Normal file
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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <uhd/usrp/multi_usrp.hpp>
class cuhd_handler {
public:
uhd::usrp::multi_usrp::sptr usrp;
uhd::rx_streamer::sptr rx_stream;
bool rx_stream_enable;
uhd::tx_streamer::sptr tx_stream;
};

193
cuhd/lib/cuhd_imp.cpp Normal file
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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <uhd/usrp/multi_usrp.hpp>
#include <iostream>
#include <complex>
#include <cstdio>
#include <uhd/utils/msg.hpp>
#include "cuhd_handler.hpp"
#include "cuhd.h"
void my_handler(uhd::msg::type_t type, const std::string &msg){
//handle the message...
}
typedef _Complex float complex_t;
#define SAMPLE_SZ sizeof(complex_t)
bool isLocked(void *h)
{
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
return handler->usrp->get_rx_sensor("lo_locked", 0).to_bool();
}
bool cuhd_rx_wait_lo_locked(void *h)
{
double report = 0.0;
while(isLocked(h) && report < 3.0)
{
report += 0.1;
usleep(1000);
}
return isLocked(h);
}
int cuhd_start_rx_stream(void *h) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
uhd::stream_cmd_t cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
cmd.time_spec = handler->usrp->get_time_now();
cmd.stream_now = true;
handler->usrp->issue_stream_cmd(cmd);
return 0;
}
int cuhd_stop_rx_stream(void *h) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
uhd::stream_cmd_t cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS);
cmd.time_spec = handler->usrp->get_time_now();
cmd.stream_now = true;
handler->usrp->issue_stream_cmd(cmd);
return 0;
}
int cuhd_start_rx_stream_nsamples(void *h, int nsamples) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
uhd::stream_cmd_t cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_MORE);
cmd.time_spec = handler->usrp->get_time_now();
cmd.stream_now = true;
cmd.num_samps = nsamples;
handler->usrp->issue_stream_cmd(cmd);
return 0;
}
int cuhd_open(char *args, void **h) {
cuhd_handler* handler = new cuhd_handler();
std::string _args=std::string(args);
handler->usrp = uhd::usrp::multi_usrp::make(_args);
handler->usrp->set_clock_source("internal");
std::string otw, cpu;
otw="sc16";
cpu="fc32";
uhd::stream_args_t stream_args(cpu, otw);
handler->rx_stream = handler->usrp->get_rx_stream(stream_args);
handler->tx_stream = handler->usrp->get_tx_stream(stream_args);
*h = handler;
return 0;
}
int cuhd_close(void *h) {
cuhd_stop_rx_stream(h);
/** Something else to close the USRP?? */
return 0;
}
double cuhd_set_rx_srate(void *h, double freq) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
handler->usrp->set_rx_rate(freq);
double ret = handler->usrp->get_rx_rate();
return ret;
}
double cuhd_set_rx_gain(void *h, double gain) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
handler->usrp->set_rx_gain(gain);
return handler->usrp->get_rx_gain();
}
double cuhd_set_rx_freq(void *h, double freq) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
handler->usrp->set_rx_freq(freq);
return handler->usrp->get_rx_freq();
}
int cuhd_recv(void *h, void *data, int nsamples, int blocking) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
uhd::rx_metadata_t md;
if (blocking) {
int n=0,p;
complex_t *data_c = (complex_t*) data;
do {
p=handler->rx_stream->recv(&data_c[n], nsamples-n, md);
if (p == -1) {
return -1;
}
n+=p;
} while(n<nsamples);
return nsamples;
} else {
return handler->rx_stream->recv(data, nsamples, md, 0.0);
}
}
double cuhd_set_tx_gain(void *h, double gain) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
handler->usrp->set_tx_gain(gain);
return handler->usrp->get_tx_gain();
}
double cuhd_set_tx_srate(void *h, double freq) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
handler->usrp->set_tx_rate(freq);
return handler->usrp->get_tx_rate();
}
double cuhd_set_tx_freq(void *h, double freq) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
handler->usrp->set_tx_freq(freq);
return handler->usrp->get_tx_freq();
}
int cuhd_send(void *h, void *data, int nsamples, int blocking) {
cuhd_handler* handler = static_cast<cuhd_handler*>(h);
uhd::tx_metadata_t md;
if (blocking) {
int n=0,p;
complex_t *data_c = (complex_t*) data;
do {
p=handler->tx_stream->send(&data_c[n], nsamples-n, md);
if (p == -1) {
return -1;
}
n+=p;
} while(n<nsamples);
return nsamples;
} else {
return handler->tx_stream->send(data, nsamples, md, 0.0);
}
}

79
cuhd/lib/cuhd_utils.c Normal file
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@ -0,0 +1,79 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <unistd.h>
#include "cuhd.h"
#include "lte/utils/vector.h"
#include "lte/utils/debug.h"
int cuhd_rssi_scan(void *uhd, float *freqs, float *rssi, int nof_bands, double fs, int nsamp) {
int i, j;
int ret = -1;
_Complex float *buffer;
double f;
buffer = calloc(nsamp, sizeof(_Complex float));
if (!buffer) {
goto free_and_exit;
}
cuhd_set_rx_gain(uhd, 0.0);
cuhd_set_rx_srate(uhd, fs);
for (i=0;i<nof_bands;i++) {
cuhd_stop_rx_stream(uhd);
f = (double) freqs[i];
cuhd_set_rx_freq(uhd, f);
cuhd_rx_wait_lo_locked(uhd);
cuhd_start_rx_stream(uhd);
/* discard first samples */
for (j=0;j<2;j++) {
if (cuhd_recv(uhd, buffer, nsamp, 1) != nsamp) {
goto free_and_exit;
}
}
rssi[i] = vec_avg_power_cf(buffer, nsamp);
printf("[%3d]: Freq %4.1f Mhz - RSSI: %3.2f dBm\r", i, f/1000000, 10*log10f(rssi[i]) + 30); fflush(stdout);
if (VERBOSE_ISINFO()) {
printf("\n");
}
}
cuhd_stop_rx_stream(uhd);
ret = 0;
free_and_exit:
free(buffer);
return ret;
}

117
examples/CMakeLists.txt
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@ -1,50 +1,97 @@
#include fftw3 directories
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/../cmake/")
find_package(FFTWS REQUIRED)
include_directories(${FFTWS_INCLUDE_DIRS})
find_package(UHD)
#
# Copyright 2012-2013 The libLTE Developers. See the
# COPYRIGHT file at the top-level directory of this distribution.
#
# This file is part of the libLTE library.
#
# libLTE is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# libLTE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
set(LIBRARIES osld m ${FFTWS_LIBRARIES})
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include)
#################################################################
# EXAMPLES
#################################################################
add_executable(hl_example hl_example.c)
target_link_libraries(hl_example ${LIBRARIES})
target_link_libraries(hl_example lte)
add_executable(ll_example ll_example.c)
target_link_libraries(ll_example ${LIBRARIES})
add_executable(synch_test synch_test.c)
target_link_libraries(synch_test ${LIBRARIES})
add_executable(equalizer_test equalizer_test.c)
target_link_libraries(equalizer_test ${LIBRARIES})
add_executable(viterbi_test viterbi_test.c)
target_link_libraries(viterbi_test ${LIBRARIES})
add_executable(cell_search cell_search.c)
target_link_libraries(cell_search ${LIBRARIES})
target_link_libraries(ll_example lte)
include_directories(${UHD_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/../uhd)
add_executable(rssi_scan_usrp rssi_scan_usrp.c ../uhd/uhd_imp.cpp ../uhd/uhd_utils.c)
target_link_libraries(rssi_scan_usrp ${LIBRARIES} ${UHD_LIBRARIES})
#################################################################
# Applications
#################################################################
add_executable(synch_file synch_file.c)
target_link_libraries(synch_file lte)
include_directories(${UHD_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/../uhd)
add_executable(pss_scan_usrp pss_scan_usrp.c ../uhd/uhd_imp.cpp ../uhd/uhd_utils.c)
target_link_libraries(pss_scan_usrp ${LIBRARIES} ${UHD_LIBRARIES})
#################################################################
# Check if UHD C-API and Graphics library are available
#################################################################
LIST(FIND OPTIONAL_LIBS cuhd CUHD_FIND)
LIST(FIND OPTIONAL_LIBS graphics GRAPHICS_FIND)
include_directories(${UHD_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/../uhd)
add_executable(mib_scan_usrp mib_scan_usrp.c ../uhd/uhd_imp.cpp ../uhd/uhd_utils.c)
target_link_libraries(mib_scan_usrp ${LIBRARIES} ${UHD_LIBRARIES})
#################################################################
# These two can be compiled without UHD or graphics support
#################################################################
add_executable(pbch_ue pbch_ue.c)
target_link_libraries(pbch_ue lte)
add_executable(pbch_enodeb pbch_enodeb.c)
target_link_libraries(pbch_enodeb lte)
IF(${CUHD_FIND} EQUAL -1)
SET_TARGET_PROPERTIES(pbch_ue PROPERTIES COMPILE_DEFINITIONS "DISABLE_UHD")
SET_TARGET_PROPERTIES(pbch_enodeb PROPERTIES COMPILE_DEFINITIONS "DISABLE_UHD")
ELSE(${CUHD_FIND} EQUAL -1)
target_link_libraries(pbch_ue cuhd)
target_link_libraries(pbch_enodeb cuhd)
ENDIF(${CUHD_FIND} EQUAL -1)
IF(${GRAPHICS_FIND} EQUAL -1)
SET_TARGET_PROPERTIES(pbch_ue PROPERTIES COMPILE_DEFINITIONS "DISABLE_GRAPHICS")
SET_TARGET_PROPERTIES(pbch_enodeb PROPERTIES COMPILE_DEFINITIONS "DISABLE_GRAPHICS")
ELSE(${GRAPHICS_FIND} EQUAL -1)
target_link_libraries(pbch_ue graphics)
target_link_libraries(pbch_enodeb graphics)
ENDIF(${GRAPHICS_FIND} EQUAL -1)
#################################################################
# These examples need the UHD driver
#################################################################
IF(${CUHD_FIND} GREATER -1)
add_executable(scan_rssi scan_rssi.c)
target_link_libraries(scan_rssi lte cuhd )
add_executable(scan_pss scan_pss.c)
target_link_libraries(scan_pss lte cuhd )
add_executable(scan_mib scan_mib.c)
target_link_libraries(scan_mib lte cuhd )
MESSAGE(STATUS " UHD examples will be installed.")
ELSE(${CUHD_FIND} GREATER -1)
MESSAGE(STATUS " UHD examples NOT INSTALLED: CUHD library not compiled.")
ENDIF(${CUHD_FIND} GREATER -1)

282
examples/cell_search.c
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@ -1,282 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include "lte.h"
char *input_file_name = NULL;
int nof_slots=100;
float corr_peak_threshold=30;
int file_binary = 0;
int force_N_id_2=-1;
int nof_ports = 1;
#define FLEN 9600
filesource_t fsrc;
cf_t *input_buffer, *fft_buffer, *ce[MAX_PORTS];
pbch_t pbch;
lte_fft_t fft;
chest_t chest;
sync_t synch;
void usage(char *prog) {
printf("Usage: %s [onlt] -i input_file\n", prog);
printf("\t-n number of frames [Default %d]\n", nof_slots);
printf("\t-t correlation threshold [Default %g]\n", corr_peak_threshold);
printf("\t-v [set verbose to debug, default none]\n");
printf("\t-b Input files is binary [Default %s]\n", file_binary?"yes":"no");
printf("\t-f force_N_id_2 [Default %d]\n", force_N_id_2);
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "intvbf")) != -1) {
switch(opt) {
case 'i':
input_file_name = argv[optind];
break;
case 'n':
nof_slots = atoi(argv[optind]);
break;
case 't':
corr_peak_threshold = atof(argv[optind]);
break;
case 'b':
file_binary = 1;
break;
case 'v':
verbose++;
break;
case 'f':
force_N_id_2 = atoi(argv[optind]);
break;
default:
usage(argv[0]);
exit(-1);
}
}
if (!input_file_name) {
usage(argv[0]);
exit(-1);
}
}
int base_init() {
int i;
file_data_type_t type = file_binary?COMPLEX_FLOAT_BIN:COMPLEX_FLOAT;
if (filesource_init(&fsrc, input_file_name, type)) {
fprintf(stderr, "Error opening file %s\n", input_file_name);
exit(-1);
}
input_buffer = malloc(4 * FLEN * sizeof(cf_t));
if (!input_buffer) {
perror("malloc");
exit(-1);
}
fft_buffer = malloc(CPNORM_NSYMB * 72 * sizeof(cf_t));
if (!fft_buffer) {
perror("malloc");
return -1;
}
for (i=0;i<nof_ports;i++) {
ce[i] = malloc(CPNORM_NSYMB * 72 * sizeof(cf_t));
if (!ce[i]) {
perror("malloc");
return -1;
}
}
if (chest_init(&chest, LINEAR, CPNORM, 6, 1)) {
fprintf(stderr, "Error initializing equalizer\n");
return -1;
}
if (lte_fft_init(&fft, CPNORM, 6)) {
fprintf(stderr, "Error initializing FFT\n");
return -1;
}
DEBUG("Memory init OK\n",0);
return 0;
}
int mib_decoder_init(int cell_id) {
if (chest_ref_LTEDL(&chest, cell_id)) {
fprintf(stderr, "Error initializing reference signal\n");
return -1;
}
if (pbch_init(&pbch, cell_id, CPNORM)) {
fprintf(stderr, "Error initiating PBCH\n");
return -1;
}
DEBUG("PBCH initiated cell_id=%d\n", cell_id);
return 0;
}
int mib_decoder_run(cf_t *input, pbch_mib_t *mib) {
int i;
lte_fft_run(&fft, input, fft_buffer);
/* Get channel estimates for each port */
for (i=0;i<nof_ports;i++) {
chest_ce_slot_port(&chest, fft_buffer, ce[i], 1, 0);
}
DEBUG("Decoding PBCH\n", 0);
return pbch_decode(&pbch, fft_buffer, ce, nof_ports, 6, 1, mib);
}
int get_samples(int length, int offset) {
int n = 0;
if (length != -1 && offset != -1) {
while(n < length) {
DEBUG("Reading %d samples offset=%d\n", length - n, offset + n);
n = filesource_read(&fsrc, &input_buffer[offset + n], length - n);
if (n == -1) {
fprintf(stderr, "Error reading %d samples from file\n", length - n);
break;
} else if (n == 0) {
printf("End of file\n");
return -1;
}
}
return n;
} else {
return -1;
}
}
enum radio_state { DONE, SYNC, MIB};
int main(int argc, char **argv) {
enum radio_state state;
int sf_size, slot_start;
int read_length, frame_idx;
int mib_attempts;
pbch_mib_t mib;
int cell_id;
int idx;
int frame_cnt;
int read_offset;
float cfo;
if (argc < 3) {
usage(argv[0]);
exit(-1);
}
parse_args(argc,argv);
if (base_init()) {
fprintf(stderr, "Error initializing memory\n");
exit(-1);
}
if (sync_init(&synch, FLEN)) {
fprintf(stderr, "Error initiating PSS/SSS\n");
exit(-1);
}
sync_force_N_id_2(&synch, force_N_id_2);
sync_set_threshold(&synch, corr_peak_threshold);
sync_pss_det_peakmean(&synch);
state = SYNC;
sf_size = FLEN;
read_length = sf_size;
slot_start = 0;
frame_idx = 0;
mib_attempts = 0;
frame_cnt = -1;
read_offset = 0;
cfo = 0.0;
printf("\n\n-- Initiating MIB search --\n\n");
while(state != DONE && frame_cnt < nof_slots) {
if (get_samples(read_length, read_offset) == -1) {
fprintf(stderr, "Error reading %d samples sf_start=%d\n", read_length, slot_start);
break;
}
if (read_length) {
frame_cnt++;
INFO("\nFrame idx=%d\n\n", frame_idx);
INFO("Correcting CFO=%.4f\n", cfo);
nco_cexp_f_direct(&input_buffer[read_offset], -cfo/128, read_length);
}
switch(state) {
case SYNC:
INFO("State Sync, Slot idx=%d\n", frame_idx);
idx = sync_run(&synch, input_buffer, read_offset);
if (idx != -1) {
idx -= 960;
slot_start = read_offset + idx;
read_length = idx;
read_offset += FLEN;
cell_id = sync_get_cell_id(&synch);
cfo = sync_get_cfo(&synch);
frame_idx = sync_get_slot_id(&synch)?1:0;
state = MIB;
if (mib_decoder_init(cell_id)) {
fprintf(stderr, "Error initiating MIB decoder\n");
exit(-1);
}
INFO("SYNC done, cell_id=%d slot_start=%d frame_idx=%d\n", cell_id, slot_start, frame_idx);
} else {
read_offset = FLEN;
memcpy(input_buffer, &input_buffer[FLEN], FLEN * sizeof(cf_t));
}
break;
case MIB:
read_length = FLEN;
read_offset = slot_start;
INFO("State MIB, frame idx=%d\n", frame_idx);
if (frame_idx == 0) {
INFO("Trying to find MIB offset %d\n", slot_start);
if (mib_decoder_run(&input_buffer[slot_start+FLEN/10], &mib)) {
INFO("MIB detected attempt=%d\n", mib_attempts);
state = DONE;
} else {
INFO("MIB not detected attempt=%d\n", mib_attempts);
if (mib_attempts >= 4) {
state = SYNC;
}
}
mib_attempts++;
}
break;
case DONE:
INFO("State Done, Slot idx=%d\n", frame_idx);
pbch_mib_fprint(stdout, &mib);
printf("Done\n");
break;
}
if (read_length) {
frame_idx++;
if (frame_idx == 2) {
frame_idx = 0;
}
}
}
sync_free(&synch);
filesource_close(&fsrc);
free(input_buffer);
printf("Done\n");
exit(0);
}

22
examples/cmake/Modules/FindFFTWS.cmake
View File

@ -1,22 +0,0 @@
# - Find FFTW
# Find the native FFTW includes and library
#
# FFTW_INCLUDES - where to find fftw3.h
# FFTW_LIBRARIES - List of libraries when using FFTW.
# FFTW_FOUND - True if FFTW found.
if (FFTWS_INCLUDES)
# Already in cache, be silent
set (FFTWS_FIND_QUIETLY TRUE)
endif (FFTWS_INCLUDES)
find_path (FFTWS_INCLUDES fftw3.h)
SET(CMAKE_FIND_LIBRARY_SUFFIXES .a)
find_library (FFTWfS_LIBRARIES NAMES fftw3f)
find_library (FFTWnS_LIBRARIES NAMES fftw3)
set(FFTWS_LIBRARIES ${FFTWfS_LIBRARIES} ${FFTWnS_LIBRARIES})
include (FindPackageHandleStandardArgs)
find_package_handle_standard_args (FFTWS DEFAULT_MSG FFTWS_LIBRARIES FFTWS_INCLUDES)
mark_as_advanced (FFTWS_LIBRARIES FFTWS_INCLUDES)

186
examples/equalizer_test.c
View File

@ -1,186 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include "lte.h"
char *input_file_name;
int nof_slots=1;
int cell_id = 0;
int port_id = 0;
int nof_prb = 6;
lte_cp_t cp = CPNORM;
int file_binary = 0;
int in_slot_length() {
if (CP_ISNORM(cp)) {
return SLOT_LEN_CPNORM(lte_symbol_sz(nof_prb));
} else {
return SLOT_LEN_CPEXT(lte_symbol_sz(nof_prb));
}
}
int slot_length() {
return CP_NSYMB(cp)*lte_symbol_sz(nof_prb);
}
void usage(char *prog) {
printf("Usage: %s [bncprev] -i input_file\n", prog);
printf("\t-b input file is binary [Default no]\n");
printf("\t-n number of slots [Default %d]\n", nof_slots);
printf("\t-c cell_id [Default %d]\n", cell_id);
printf("\t-p port_id [Default %d]\n", port_id);
printf("\t-r nof_prb [Default %d]\n", nof_prb);
printf("\t-e [extended cyclic prefix, Default normal]\n");
printf("\t-v [set verbose to debug, default none]\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "bincprev")) != -1) {
switch(opt) {
case 'b':
file_binary = 1;
break;
case 'i':
input_file_name = argv[optind];
break;
case 'n':
nof_slots = atoi(argv[optind]);
break;
case 'c':
cell_id = atoi(argv[optind]);
break;
case 'p':
port_id = atoi(argv[optind]);
break;
case 'r':
nof_prb = atoi(argv[optind]);
break;
case 'e':
cp = CPEXT;
break;
case 'v':
PRINT_DEBUG;
break;
default:
usage(argv[0]);
exit(-1);
}
}
if (!input_file_name) {
usage(argv[0]);
exit(-1);
}
}
int main(int argc, char **argv) {
filesource_t fsrc;
lte_fft_t fft;
FILE *f = NULL;
chest_t eq;
int slot_cnt;
cf_t *input = NULL;
cf_t *outfft = NULL;
cf_t *ce = NULL;
int i;
if (argc < 3) {
usage(argv[0]);
exit(-1);
}
parse_args(argc,argv);
if (filesource_init(&fsrc, input_file_name, file_binary?COMPLEX_FLOAT_BIN:COMPLEX_FLOAT)) {
fprintf(stderr, "Error opening file %s\n", input_file_name);
goto do_exit;
}
f = fopen("output.m", "w");
if (!f) {
perror("fopen");
goto do_exit;
}
input = malloc(in_slot_length()*sizeof(cf_t));
if (!input) {
perror("malloc");
goto do_exit;
}
outfft = malloc(slot_length()*sizeof(cf_t));
if (!outfft) {
perror("malloc");
goto do_exit;
}
ce = malloc(nof_prb * RE_X_RB * CP_NSYMB(cp) * sizeof(cf_t));
if (!ce) {
perror("malloc");
goto do_exit;
}
if (lte_fft_init(&fft, cp, nof_prb)) {
fprintf(stderr, "Error: initializing FFT\n");
goto do_exit;
}
if (chest_init(&eq, LINEAR, cp, nof_prb, 1)) {
fprintf(stderr, "Error initializing equalizer\n");
goto do_exit;
}
if (chest_ref_LTEDL(&eq, cell_id)) {
fprintf(stderr, "Error initializing reference signal\n");
goto do_exit;
}
bzero(input, sizeof(cf_t) * in_slot_length());
bzero(outfft, sizeof(cf_t) * slot_length());
fprintf(f, "ce=zeros(%d, %d);\n", nof_slots * CP_NSYMB(cp), nof_prb * RE_X_RB);
/* read all file or nof_slots */
slot_cnt = 0;
while (in_slot_length() == filesource_read(&fsrc, input, in_slot_length())
&& (slot_cnt < nof_slots || nof_slots == -1)) {
fprintf(f, "infft=");
vec_fprint_c(f, input, CP_NSYMB(cp) * 128);
fprintf(f, ";\n");
lte_fft_run(&fft, input, outfft);
fprintf(f, "outfft=");
vec_fprint_c(f, outfft, CP_NSYMB(cp) * nof_prb * RE_X_RB);
fprintf(f, ";\n");
chest_ce_slot_port(&eq, outfft, ce, 0, 0);
chest_fprint(&eq, f, slot_cnt%20, 0);
for (i=0;i<CP_NSYMB(cp);i++) {
fprintf(f, "ce(%d,:)=", slot_cnt * CP_NSYMB(cp) + i + 1);
vec_fprint_c(f, &ce[i * nof_prb * RE_X_RB], nof_prb * RE_X_RB);
}
slot_cnt++;
}
do_exit:
chest_free(&eq);
lte_fft_free(&fft);
if (ce) {
free(ce);
}
if (outfft) {
free(outfft);
}
if (input) {
free(input);
}
if (f) {
fclose(f);
}
filesource_close(&fsrc);
printf("Done processed %d slots\n", slot_cnt);
exit(0);
}

28
examples/hl_example.c
View File

@ -1,3 +1,31 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>

28
examples/ll_example.c
View File

@ -1,3 +1,31 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>

283
examples/pbch_enodeb.c Normal file
View File

@ -0,0 +1,283 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include "lte.h"
#ifndef DISABLE_UHD
#include "cuhd.h"
void *uhd;
#endif
char *output_file_name = NULL;
int nof_slots=-1;
int cell_id = 1;
int nof_prb = 6;
char *uhd_args = "";
float uhd_amp=0.25, uhd_gain=10.0, uhd_freq=2400000000;
filesink_t fsink;
lte_fft_t ifft;
pbch_t pbch;
cf_t *slot_buffer = NULL, *output_buffer = NULL;
int slot_n_re, slot_n_samples;
#define UHD_SAMP_FREQ 1920000
void usage(char *prog) {
printf("Usage: %s [agmfoncvp]\n", prog);
#ifndef DISABLE_UHD
printf("\t-a UHD args [Default %s]\n", uhd_args);
printf("\t-g UHD TX gain [Default %.2f dB]\n", uhd_gain);
printf("\t-m UHD signal amplitude [Default %.2f]\n", uhd_amp);
printf("\t-f UHD TX frequency [Default %.1f MHz]\n", uhd_freq/1000000);
#else
printf("\t UHD is disabled. CUHD library not available\n");
#endif
printf("\t-o output_file [Default USRP]\n");
printf("\t-n number of frames [Default %d]\n", nof_slots);
printf("\t-c cell id [Default %d]\n", cell_id);
printf("\t-p nof_prb [Default %d]\n", nof_prb);
printf("\t-v [set verbose to debug, default none]\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "agfmoncpv")) != -1) {
switch(opt) {
case 'a':
uhd_args = argv[optind];
break;
case 'g':
uhd_gain = atof(argv[optind]);
break;
case 'm':
uhd_amp = atof(argv[optind]);
break;
case 'f':
uhd_freq = atof(argv[optind]);
break;
case 'o':
output_file_name = argv[optind];
break;
case 'n':
nof_slots = atoi(argv[optind]);
break;
case 'p':
nof_prb = atoi(argv[optind]);
break;
case 'c':
cell_id = atoi(argv[optind]);
break;
case 'v':
verbose++;
break;
default:
usage(argv[0]);
exit(-1);
}
}
#ifdef DISABLE_UHD
if (!output_file_name) {
usage(argv[0]);
exit(-1);
}
#endif
}
void base_init() {
/* init memory */
slot_buffer = malloc(sizeof(cf_t) * slot_n_re);
if (!slot_buffer) {
perror("malloc");
exit(-1);
}
output_buffer = malloc(sizeof(cf_t) * slot_n_samples);
if (!output_buffer) {
perror("malloc");
exit(-1);
}
/* open file or USRP */
if (output_file_name) {
if (filesink_init(&fsink, output_file_name, COMPLEX_FLOAT_BIN)) {
fprintf(stderr, "Error opening file %s\n", output_file_name);
exit(-1);
}
} else {
#ifndef DISABLE_UHD
printf("Opening UHD device...\n");
if (cuhd_open(uhd_args,&uhd)) {
fprintf(stderr, "Error opening uhd\n");
exit(-1);
}
#else
printf("Error UHD not available. Select an output file\n");
exit(-1);
#endif
}
/* create ifft object */
if (lte_ifft_init(&ifft, CPNORM, nof_prb)) {
fprintf(stderr, "Error creating iFFT object\n");
exit(-1);
}
if (pbch_init(&pbch, cell_id, CPNORM)) {
fprintf(stderr, "Error creating PBCH object\n");
exit(-1);
}
}
void base_free() {
pbch_free(&pbch);
lte_ifft_free(&ifft);
if (slot_buffer) {
free(slot_buffer);
}
if (output_buffer) {
free(output_buffer);
}
if (output_file_name) {
filesink_free(&fsink);
} else {
#ifndef DISABLE_UHD
cuhd_close(&uhd);
#endif
}
}
int main(int argc, char **argv) {
int nf, ns, N_id_2;
cf_t pss_signal[PSS_LEN];
float sss_signal0[SSS_LEN]; // for subframe 0
float sss_signal5[SSS_LEN]; // for subframe 5
pbch_mib_t mib;
refsignal_t refs[NSLOTS_X_FRAME];
int i;
cf_t *slot1_symbols[MAX_PORTS_CTRL];
#ifdef DISABLE_UHD
if (argc < 3) {
usage(argv[0]);
exit(-1);
}
#endif
parse_args(argc,argv);
N_id_2 = cell_id%3;
slot_n_re = CPNORM_NSYMB * nof_prb * RE_X_RB;
slot_n_samples = SLOT_LEN_CPNORM(lte_symbol_sz(nof_prb));
/* this *must* be called after setting slot_len_* */
base_init();
/* Generate PSS/SSS signals */
pss_generate(pss_signal, N_id_2);
sss_generate(sss_signal0, sss_signal5, cell_id);
/* Generate CRS signals */
for (i=0;i<NSLOTS_X_FRAME;i++) {
if (refsignal_init_LTEDL(&refs[i], 0, i, cell_id, CPNORM, nof_prb)) {
fprintf(stderr, "Error initiating CRS slot=%d\n", i);
return -1;
}
}
mib.nof_ports = 1;
mib.nof_prb = 6;
mib.phich_length = PHICH_NORM;
mib.phich_resources = R_1;
mib.sfn = 0;
for (i=0;i<MAX_PORTS_CTRL;i++) { // now there's only 1 port
slot1_symbols[i] = slot_buffer;
}
#ifndef DISABLE_UHD
if (!output_file_name) {
printf("Set TX rate: %.2f MHz\n", cuhd_set_tx_srate(uhd, UHD_SAMP_FREQ)/1000000);
printf("Set TX gain: %.1f dB\n", cuhd_set_tx_gain(uhd, uhd_gain));
printf("Set TX freq: %.2f MHz\n", cuhd_set_tx_freq(uhd, uhd_freq)/1000000);
}
#endif
nf = 0;
while(nf<nof_slots || nof_slots == -1) {
for (ns=0;ns<NSLOTS_X_FRAME;ns++) {
bzero(slot_buffer, sizeof(cf_t) * slot_n_re);
switch(ns) {
case 0: // tx pss/sss
case 10: // tx pss/sss
pss_put_slot(pss_signal, slot_buffer, nof_prb, CPNORM);
sss_put_slot(ns?sss_signal5:sss_signal0, slot_buffer, nof_prb, CPNORM);
break;
case 1: // tx pbch
pbch_encode(&pbch, &mib, slot1_symbols, nof_prb, 1);
break;
default: // transmit zeros
break;
}
refsignal_put(&refs[ns], slot_buffer);
/* Transform to OFDM symbols */
lte_ifft_run(&ifft, slot_buffer, output_buffer);
/* send to file or usrp */
if (output_file_name) {
filesink_write(&fsink, output_buffer, slot_n_samples);
usleep(5000);
} else {
#ifndef DISABLE_UHD
vec_sc_prod_cfc(output_buffer, uhd_amp, output_buffer, slot_n_samples);
cuhd_send(uhd, output_buffer, slot_n_samples, 1);
#endif
}
}
mib.sfn=(mib.sfn+1)%1024;
printf("SFN: %4d\r", mib.sfn);fflush(stdout);
nf++;
}
base_free();
printf("Done\n");
exit(0);
}

501
examples/pbch_ue.c Normal file
View File

@ -0,0 +1,501 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <math.h>
#include <sys/time.h>
#include <unistd.h>
#include <assert.h>
#include <signal.h>
#include "lte.h"
#ifndef DISABLE_UHD
#include "cuhd.h"
void *uhd;
#endif
#ifndef DISABLE_GRAPHICS
#include "plot.h"
plot_real_t poutfft;
plot_complex_t pce;
plot_scatter_t pscatrecv, pscatequal;
#endif
#define MHZ 1000000
#define SAMP_FREQ 1920000
#define FLEN 9600
#define FLEN_PERIOD 0.005
#define NOF_PORTS 2
float find_threshold = 30.0, track_threshold = 10.0;
int max_track_lost = 20, nof_slots = -1;
int track_len=300;
char *input_file_name = NULL;
int disable_plots = 0;
int go_exit=0;
float uhd_freq = 2600000000.0, uhd_gain = 20.0;
char *uhd_args = "";
filesource_t fsrc;
cf_t *input_buffer, *fft_buffer, *ce[MAX_PORTS_CTRL];
pbch_t pbch;
lte_fft_t fft;
chest_t chest;
sync_t sfind, strack;
cfo_t cfocorr;
enum sync_state {FIND, TRACK};
void usage(char *prog) {
printf("Usage: %s [iagfndvp]\n", prog);
printf("\t-i input_file [Default use USRP]\n");
#ifndef DISABLE_UHD
printf("\t-a UHD args [Default %s]\n", uhd_args);
printf("\t-g UHD RX gain [Default %.2f dB]\n", uhd_gain);
printf("\t-f UHD RX frequency [Default %.1f MHz]\n", uhd_freq/1000000);
#else
printf("\t UHD is disabled. CUHD library not available\n");
#endif
printf("\t-n nof_frames [Default %d]\n", nof_slots);
printf("\t-p PSS threshold [Default %f]\n", find_threshold);
#ifndef DISABLE_GRAPHICS
printf("\t-d disable plots [Default enabled]\n");
#else
printf("\t plots are disabled. Graphics library not available\n");
#endif
printf("\t-v [set verbose to debug, default none]\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "iagfndvp")) != -1) {
switch(opt) {
case 'i':
input_file_name = argv[optind];
break;
case 'a':
uhd_args = argv[optind];
break;
case 'g':
uhd_gain = atof(argv[optind]);
break;
case 'f':
uhd_freq = atof(argv[optind]);
break;
case 'p':
find_threshold = atof(argv[optind]);
break;
case 'n':
nof_slots = atoi(argv[optind]);
break;
case 'd':
disable_plots = 1;
break;
case 'v':
verbose++;
break;
default:
usage(argv[0]);
exit(-1);
}
}
}
#ifndef DISABLE_GRAPHICS
void init_plots() {
plot_init();
plot_real_init(&poutfft);
plot_real_setTitle(&poutfft, "Output FFT - Magnitude");
plot_real_setLabels(&poutfft, "Index", "dB");
plot_real_setYAxisScale(&poutfft, -60, 0);
plot_real_setXAxisScale(&poutfft, 1, 504);
plot_complex_init(&pce);
plot_complex_setTitle(&pce, "Channel Estimates");
plot_complex_setYAxisScale(&pce, Ip, -0.01, 0.01);
plot_complex_setYAxisScale(&pce, Q, -0.01, 0.01);
plot_complex_setYAxisScale(&pce, Magnitude, 0, 0.01);
plot_complex_setYAxisScale(&pce, Phase, -M_PI, M_PI);
plot_scatter_init(&pscatrecv);
plot_scatter_setTitle(&pscatrecv, "Received Symbols");
plot_scatter_setXAxisScale(&pscatrecv, -0.01, 0.01);
plot_scatter_setYAxisScale(&pscatrecv, -0.01, 0.01);
plot_scatter_init(&pscatequal);
plot_scatter_setTitle(&pscatequal, "Equalized Symbols");
plot_scatter_setXAxisScale(&pscatequal, -1, 1);
plot_scatter_setYAxisScale(&pscatequal, -1, 1);
}
#endif
int base_init(int frame_length) {
int i;
#ifndef DISABLE_GRAPHICS
if (!disable_plots) {
init_plots();
}
#else
printf("-- PLOTS are disabled. Graphics library not available --\n\n");
#endif
if (input_file_name) {
if (filesource_init(&fsrc, input_file_name, COMPLEX_FLOAT_BIN)) {
return -1;
}
} else {
/* open UHD device */
#ifndef DISABLE_UHD
printf("Opening UHD device...\n");
if (cuhd_open(uhd_args,&uhd)) {
fprintf(stderr, "Error opening uhd\n");
return -1;
}
#else
printf("Error UHD not available. Select an input file\n");
return -1;
#endif
}
input_buffer = (cf_t*) malloc(frame_length * sizeof(cf_t));
if (!input_buffer) {
perror("malloc");
return -1;
}
fft_buffer = (cf_t*) malloc(CPNORM_NSYMB * 72 * sizeof(cf_t));
if (!fft_buffer) {
perror("malloc");
return -1;
}
for (i=0;i<MAX_PORTS_CTRL;i++) {
ce[i] = (cf_t*) malloc(CPNORM_NSYMB * 72 * sizeof(cf_t));
if (!ce[i]) {
perror("malloc");
return -1;
}
}
if (sync_init(&sfind, FLEN)) {
fprintf(stderr, "Error initiating PSS/SSS\n");
return -1;
}
if (sync_init(&strack, track_len)) {
fprintf(stderr, "Error initiating PSS/SSS\n");
return -1;
}
if (chest_init(&chest, LINEAR, CPNORM, 6, NOF_PORTS)) {
fprintf(stderr, "Error initializing equalizer\n");
return -1;
}
if (cfo_init(&cfocorr, FLEN)) {
fprintf(stderr, "Error initiating CFO\n");
return -1;
}
if (lte_fft_init(&fft, CPNORM, 6)) {
fprintf(stderr, "Error initializing FFT\n");
return -1;
}
return 0;
}
void base_free() {
int i;
if (input_file_name) {
filesource_free(&fsrc);
} else {
#ifndef DISABLE_UHD
cuhd_close(uhd);
#endif
}
#ifndef DISABLE_GRAPHICS
plot_exit();
#endif
sync_free(&sfind);
sync_free(&strack);
lte_fft_free(&fft);
chest_free(&chest);
cfo_free(&cfocorr);
free(input_buffer);
free(fft_buffer);
for (i=0;i<MAX_PORTS_CTRL;i++) {
free(ce[i]);
}
}
int mib_decoder_init(int cell_id) {
if (chest_ref_LTEDL(&chest, cell_id)) {
fprintf(stderr, "Error initializing reference signal\n");
return -1;
}
if (pbch_init(&pbch, cell_id, CPNORM)) {
fprintf(stderr, "Error initiating PBCH\n");
return -1;
}
DEBUG("PBCH initiated cell_id=%d\n", cell_id);
return 0;
}
int mib_decoder_run(cf_t *input, pbch_mib_t *mib) {
int i, n;
lte_fft_run(&fft, input, fft_buffer);
/* Get channel estimates for each port */
for (i=0;i<NOF_PORTS;i++) {
chest_ce_slot_port(&chest, fft_buffer, ce[i], 1, i);
}
DEBUG("Decoding PBCH\n", 0);
n = pbch_decode(&pbch, fft_buffer, ce, 6, 1, mib);
#ifndef DISABLE_GRAPHICS
float tmp[72*7];
if (!disable_plots) {
for (i=0;i<72*7;i++) {
tmp[i] = 10*log10f(cabsf(fft_buffer[i]));
}
plot_real_setNewData(&poutfft, tmp, 72*7);
plot_complex_setNewData(&pce, ce[0], 72*7);
plot_scatter_setNewData(&pscatrecv, pbch.pbch_symbols[0], pbch.nof_symbols);
if (n) {
plot_scatter_setNewData(&pscatequal, pbch.pbch_d, pbch.nof_symbols);
}
}
#endif
return n;
}
void sigintHandler(int sig_num)
{
go_exit=1;
}
int main(int argc, char **argv) {
int frame_cnt;
int cell_id;
int find_idx, track_idx, last_found;
enum sync_state state;
int nslot;
pbch_mib_t mib;
float cfo;
int n;
int nof_found_mib = 0;
float timeoffset = 0;
#ifdef DISABLE_UHD
if (argc < 3) {
usage(argv[0]);
exit(-1);
}
#endif
parse_args(argc,argv);
if (base_init(FLEN)) {
fprintf(stderr, "Error initializing memory\n");
exit(-1);
}
sync_pss_det_peak_to_avg(&sfind);
sync_pss_det_peak_to_avg(&strack);
if (!input_file_name) {
#ifndef DISABLE_UHD
INFO("Setting sampling frequency %.2f MHz\n", (float) SAMP_FREQ/MHZ);
cuhd_set_rx_srate(uhd, SAMP_FREQ);
cuhd_set_rx_gain(uhd, uhd_gain);
/* set uhd_freq */
cuhd_set_rx_freq(uhd, (double) uhd_freq);
cuhd_rx_wait_lo_locked(uhd);
DEBUG("Set uhd_freq to %.3f MHz\n", (double) uhd_freq);
DEBUG("Starting receiver...\n",0);
cuhd_start_rx_stream(uhd);
#endif
}
printf("\n --- Press Ctrl+C to exit --- \n");
signal(SIGINT, sigintHandler);
state = FIND;
nslot = 0;
find_idx = 0;
cfo = 0;
mib.sfn = -1;
frame_cnt = 0;
last_found = 0;
sync_set_threshold(&sfind, find_threshold);
sync_force_N_id_2(&sfind, -1);
while(!go_exit && (frame_cnt < nof_slots || nof_slots==-1)) {
INFO(" ----- RECEIVING %d SAMPLES ---- \n", FLEN);
if (input_file_name) {
n = filesource_read(&fsrc, input_buffer, FLEN);
if (n == -1) {
fprintf(stderr, "Error reading file\n");
exit(-1);
} else if (n < FLEN) {
filesource_seek(&fsrc, 0);
filesource_read(&fsrc, input_buffer, FLEN);
}
} else {
#ifndef DISABLE_UHD
cuhd_recv(uhd, input_buffer, FLEN, 1);
#endif
}
switch(state) {
case FIND:
/* find peak in all frame */
find_idx = sync_run(&sfind, input_buffer);
INFO("FIND %3d:\tPAR=%.2f\n", frame_cnt, sync_get_peak_to_avg(&sfind));
if (find_idx != -1) {
/* if found peak, go to track and set track threshold */
cell_id = sync_get_cell_id(&sfind);
if (cell_id != -1) {
frame_cnt = -1;
last_found = 0;
sync_set_threshold(&strack, track_threshold);
sync_force_N_id_2(&strack, sync_get_N_id_2(&sfind));
sync_force_cp(&strack, sync_get_cp(&sfind));
mib_decoder_init(cell_id);
nof_found_mib = 0;
nslot = sync_get_slot_id(&sfind);
nslot=(nslot+10)%20;
cfo = 0;
timeoffset = 0;
printf("\n");
state = TRACK;
} else {
printf("cellid=-1\n");
}
}
if (verbose == VERBOSE_NONE) {
printf("Finding PSS... PAR=%.2f\r", sync_get_peak_to_avg(&sfind));
}
break;
case TRACK:
/* Find peak around known position find_idx */
INFO("TRACK %3d: PSS find_idx %d offset %d\n", frame_cnt, find_idx, find_idx - track_len);
track_idx = sync_run(&strack, &input_buffer[find_idx - track_len]);
if (track_idx != -1) {
/* compute cumulative moving average CFO */
cfo = (sync_get_cfo(&strack) + frame_cnt * cfo) / (frame_cnt + 1);
/* compute cumulative moving average time offset */
timeoffset = (float) (track_idx-track_len + timeoffset * frame_cnt) / (frame_cnt + 1);
last_found = frame_cnt;
find_idx = (find_idx + track_idx - track_len)%FLEN;
if (nslot != sync_get_slot_id(&strack)) {
INFO("Expected slot %d but got %d\n", nslot, sync_get_slot_id(&strack));
printf("\r\n");
fflush(stdout);
printf("\r\n");
state = FIND;
}
} else {
/* if sync not found, adjust time offset with the averaged value */
find_idx = (find_idx + (int) timeoffset)%FLEN;
}
/* if we missed too many PSS go back to FIND */
if (frame_cnt - last_found > max_track_lost) {
INFO("%d frames lost. Going back to FIND", frame_cnt - last_found);
printf("\r\n");
fflush(stdout);
printf("\r\n");
state = FIND;
}
// Correct CFO
INFO("Correcting CFO=%.4f\n", cfo);
cfo_correct(&cfocorr, input_buffer, -cfo/128);
if (nslot == 0 && find_idx + 960 < FLEN) {
INFO("Finding MIB at idx %d\n", find_idx);
if (mib_decoder_run(&input_buffer[find_idx], &mib)) {
INFO("MIB detected attempt=%d\n", frame_cnt);
if (verbose == VERBOSE_NONE) {
if (!nof_found_mib) {
printf("\r\n");
fflush(stdout);
printf("\r\n");
printf(" - Phy. CellId:\t%d\n", cell_id);
pbch_mib_fprint(stdout, &mib);
}
}
nof_found_mib++;
} else {
INFO("MIB not found attempt %d\n",frame_cnt);
}
if (frame_cnt) {
printf("SFN: %4d, CFO: %+.4f KHz, SFO: %+.4f Khz, TimeOffset: %4d, Errors: %4d/%4d, ErrorRate: %.1e\r", mib.sfn,
cfo*15, timeoffset/5, find_idx, frame_cnt-2*(nof_found_mib-1), frame_cnt,
(float) (frame_cnt-2*(nof_found_mib-1))/frame_cnt);
fflush(stdout);
}
}
if (input_file_name) {
usleep(5000);
}
nslot = (nslot+10)%20;
break;
}
frame_cnt++;
}
base_free();
printf("\nBye\n");
exit(0);
}

209
examples/mib_scan_usrp.c → examples/scan_mib.c
View File

@ -1,3 +1,30 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -9,11 +36,10 @@
#include "lte.h"
#define DISABLE_UHD
//#define DISABLE_UHD
#ifndef DISABLE_UHD
#include "uhd.h"
#include "uhd_utils.h"
#include "cuhd.h"
#endif
#define MHZ 1000000
@ -26,28 +52,27 @@
#define IS_SIGNAL(i) (10*log10f(rssi[i]) + 30 > rssi_threshold)
int band, earfcn=-1;
float find_threshold = 40.0, track_threshold = 8.0;
float find_threshold = 10.0, track_threshold = 8.0;
int earfcn_start=-1, earfcn_end = -1;
float rssi_threshold = -30.0;
float rssi_threshold = -45.0;
int max_track_lost=9;
int nof_frames_find=8, nof_frames_track=100, nof_samples_rssi=50000;
int nof_frames_find=20, nof_frames_track=100, nof_samples_rssi=50000;
int track_len=500;
int nof_ports;
cf_t *input_buffer, *fft_buffer, *ce[MAX_PORTS];
pbch_t pbch;
lte_fft_t fft;
chest_t chest;
sync_t sfind, strack;
cfo_t cfocorr;
float *cfo_v;
int *idx_v, *idx_valid, *t;
float *p2a_v;
void *uhd;
int nof_bands;
float gain = 20.0;
float uhd_gain = 20.0;
#define MAX_EARFCN 1000
lte_earfcn_t channels[MAX_EARFCN];
@ -59,7 +84,6 @@ float p2a[MAX_EARFCN];
enum sync_state {INIT, FIND, TRACK, MIB, DONE};
void print_to_matlab();
void usage(char *prog) {
printf("Usage: %s [seRrFfTtgv] -b band\n", prog);
@ -72,7 +96,7 @@ void usage(char *prog) {
printf("\t-T pss_track_nof_frames [Default %d]\n", nof_frames_track);
printf("\t-t pss_track_threshold [Default %.2f]\n", track_threshold);
printf("\t-l pss_track_len [Default %d]\n", track_len);
printf("\t-g gain [Default %.2f dB]\n", gain);
printf("\t-g gain [Default %.2f dB]\n", uhd_gain);
printf("\t-v [set verbose to debug, default none]\n");
}
@ -108,7 +132,7 @@ void parse_args(int argc, char **argv) {
track_threshold = atof(argv[optind]);
break;
case 'g':
gain = atof(argv[optind]);
uhd_gain = atof(argv[optind]);
break;
case 'v':
verbose++;
@ -135,7 +159,7 @@ int base_init(int frame_length) {
return -1;
}
for (i=0;i<nof_ports;i++) {
for (i=0;i<MAX_PORTS;i++) {
ce[i] = malloc(CPNORM_NSYMB * 72 * sizeof(cf_t));
if (!ce[i]) {
perror("malloc");
@ -150,7 +174,7 @@ int base_init(int frame_length) {
fprintf(stderr, "Error initiating PSS/SSS\n");
return -1;
}
if (chest_init(&chest, LINEAR, CPNORM, 6, 1)) {
if (chest_init(&chest, LINEAR, CPNORM, 6, MAX_PORTS)) {
fprintf(stderr, "Error initializing equalizer\n");
return -1;
}
@ -159,6 +183,10 @@ int base_init(int frame_length) {
fprintf(stderr, "Error initializing FFT\n");
return -1;
}
if (cfo_init(&cfocorr, FLEN)) {
fprintf(stderr, "Error initiating CFO\n");
return -1;
}
idx_v = malloc(nof_frames_track * sizeof(int));
if (!idx_v) {
@ -192,7 +220,7 @@ int base_init(int frame_length) {
/* open UHD device */
#ifndef DISABLE_UHD
printf("Opening UHD device...\n");
if (uhd_open("",&uhd)) {
if (cuhd_open("",&uhd)) {
fprintf(stderr, "Error opening uhd\n");
return -1;
}
@ -204,16 +232,18 @@ void base_free() {
int i;
#ifndef DISABLE_UHD
uhd_close(&uhd);
cuhd_close(uhd);
#endif
sync_free(&sfind);
sync_free(&strack);
lte_fft_free(&fft);
chest_free(&chest);
cfo_free(&cfocorr);
free(input_buffer);
free(fft_buffer);
for (i=0;i<nof_ports;i++) {
for (i=0;i<MAX_PORTS;i++) {
free(ce[i]);
}
free(idx_v);
@ -264,7 +294,7 @@ int rssi_scan() {
n++;
}
#ifndef DISABLE_UHD
if (uhd_rssi_scan(uhd, freqs, rssi_d, n, (double) RSSI_FS, nof_samples_rssi)) {
if (cuhd_rssi_scan(uhd, freqs, rssi_d, n, (double) RSSI_FS, nof_samples_rssi)) {
fprintf(stderr, "Error while doing RSSI scan\n");
return -1;
}
@ -276,7 +306,7 @@ int rssi_scan() {
freqs[i] = channels[i].fd * MHZ;
}
#ifndef DISABLE_UHD
if (uhd_rssi_scan(uhd, freqs, rssi, nof_bands, (double) RSSI_FS, nof_samples_rssi)) {
if (cuhd_rssi_scan(uhd, freqs, rssi, nof_bands, (double) RSSI_FS, nof_samples_rssi)) {
fprintf(stderr, "Error while doing RSSI scan\n");
return -1;
}
@ -308,12 +338,12 @@ int mib_decoder_run(cf_t *input, pbch_mib_t *mib) {
lte_fft_run(&fft, input, fft_buffer);
/* Get channel estimates for each port */
for (i=0;i<nof_ports;i++) {
chest_ce_slot_port(&chest, fft_buffer, ce[i], 1, 0);
for (i=0;i<MAX_PORTS;i++) {
chest_ce_slot_port(&chest, fft_buffer, ce[i], 1, i);
}
DEBUG("Decoding PBCH\n", 0);
return pbch_decode(&pbch, fft_buffer, ce, nof_ports, 6, 1, mib);
return pbch_decode(&pbch, fft_buffer, ce, 6, 1, mib);
}
int main(int argc, char **argv) {
@ -341,8 +371,8 @@ int main(int argc, char **argv) {
exit(-1);
}
sync_pss_det_peakmean(&sfind);
sync_pss_det_peakmean(&strack);
sync_pss_det_peak_to_avg(&sfind);
sync_pss_det_peak_to_avg(&strack);
nof_bands = lte_band_get_fd_band(band, channels, earfcn_start, earfcn_end, MAX_EARFCN);
printf("RSSI scan: %d freqs in band %d, RSSI threshold %.2f dBm\n", nof_bands, band, rssi_threshold);
@ -356,19 +386,21 @@ int main(int argc, char **argv) {
usleep(500000);
INFO("Setting sampling frequency %.2f MHz\n", (float) SAMP_FREQ/MHZ);
#ifndef DISABLE_UHD
uhd_set_rx_srate(uhd, SAMP_FREQ);
cuhd_set_rx_srate(uhd, SAMP_FREQ);
uhd_set_rx_gain(uhd, gain);
cuhd_set_rx_gain(uhd, uhd_gain);
#endif
print_to_matlab();
freq=0;
state = INIT;
nslot = 0;
sfo = 0;
find_idx = 0;
frame_cnt = 0;
max_peak_to_avg = -1;
last_found = 0;
cell_id = 0;
while(freq<nof_bands) {
/* scan only bands above rssi_threshold */
if (!IS_SIGNAL(freq)) {
@ -378,31 +410,32 @@ int main(int argc, char **argv) {
} else {
if (state != INIT && state != DONE) {
#ifndef DISABLE_UHD
uhd_recv(uhd, &input_buffer[FLEN], FLEN, 1);
DEBUG(" ----- RECEIVING %d SAMPLES ---- \n", FLEN);
cuhd_recv(uhd, &input_buffer[FLEN], FLEN, 1);
#endif
}
switch(state) {
case INIT:
DEBUG("Stopping receiver...\n",0);
#ifndef DISABLE_UHD
uhd_stop_rx_stream(uhd);
cuhd_stop_rx_stream(uhd);
/* set freq */
uhd_set_rx_freq(uhd, (double) channels[freq].fd * MHZ);
uhd_rx_wait_lo_locked(uhd);
cuhd_set_rx_freq(uhd, (double) channels[freq].fd * MHZ);
cuhd_rx_wait_lo_locked(uhd);
DEBUG("Set freq to %.3f MHz\n", (double) channels[freq].fd);
DEBUG("Starting receiver...\n",0);
uhd_start_rx_stream(uhd);
cuhd_start_rx_stream(uhd);
#endif
/* init variables */
frame_cnt = 0;
max_peak_to_avg = -99;
max_peak_to_avg = -1;
cell_id = -1;
/* receive first frame */
#ifndef DISABLE_UHD
uhd_recv(uhd, input_buffer, FLEN, 1);
cuhd_recv(uhd, input_buffer, FLEN, 1);
#endif
/* set find_threshold and go to FIND state */
sync_set_threshold(&sfind, find_threshold);
@ -411,7 +444,7 @@ int main(int argc, char **argv) {
break;
case FIND:
/* find peak in all frame */
find_idx = sync_run(&sfind, input_buffer, FLEN);
find_idx = sync_run(&sfind, &input_buffer[FLEN]);
DEBUG("[%3d/%d]: PAR=%.2f\n", freq, nof_bands, sync_get_peak_to_avg(&sfind));
if (find_idx != -1) {
/* if found peak, go to track and set lower threshold */
@ -420,8 +453,7 @@ int main(int argc, char **argv) {
max_peak_to_avg = -1;
sync_set_threshold(&strack, track_threshold);
sync_force_N_id_2(&strack, sync_get_N_id_2(&sfind));
cell_id = sync_get_cell_id(&strack);
mib_decoder_init(cell_id);
cell_id = sync_get_cell_id(&sfind);
state = TRACK;
INFO("[%3d/%d]: EARFCN %d Freq. %.2f MHz PSS found PAR %.2f dB\n", freq, nof_bands,
@ -435,9 +467,9 @@ int main(int argc, char **argv) {
}
break;
case TRACK:
INFO("Tracking PSS find_idx %d offset %d\n", find_idx, find_idx + track_len);
INFO("Tracking PSS find_idx %d offset %d\n", find_idx, find_idx - track_len);
track_idx = sync_run(&strack, input_buffer, FLEN + find_idx - track_len);
track_idx = sync_run(&strack, &input_buffer[FLEN + find_idx - track_len]);
p2a_v[frame_cnt] = sync_get_peak_to_avg(&strack);
/* save cell id for the best peak-to-avg */
@ -463,38 +495,41 @@ int main(int argc, char **argv) {
state = INIT;
freq++;
} else if (frame_cnt >= nof_frames_track) {
state = MIB;
nslot=(nslot+10)%20;
}
break;
case MIB:
INFO("Finding MIB at freq %.2f Mhz\n", channels[freq].fd);
mib_decoder_init(cell_id);
cfo[freq] = mean_valid(idx_v, cfo_v, frame_cnt);
p2a[freq] = mean_valid(idx_v, p2a_v, frame_cnt);
valid_frames = preprocess_idx(idx_v, idx_valid, t, frame_cnt);
sfo = sfo_estimate_period(idx_valid, t, valid_frames, FLEN_PERIOD);
state = MIB;
nslot=(nslot+10)%20;
}
break;
case MIB:
INFO("Finding MIB at freq %.2f Mhz offset=%d, cell_id=%d, slot_idx=%d\n", channels[freq].fd, find_idx, cell_id, nslot);
// TODO: Correct SFO
// Correct CFO
INFO("Correcting CFO=%.4f\n", cfo[freq]);
nco_cexp_f_direct(&input_buffer[FLEN], -cfo[freq]/128, FLEN);
cfo_correct(&cfocorr, &input_buffer[FLEN], (-cfo[freq])/128);
if (nslot == 10) {
if (mib_decoder_run(&input_buffer[FLEN+find_idx+FLEN/10], &mib)) {
if (nslot == 0) {
if (mib_decoder_run(&input_buffer[FLEN+find_idx], &mib)) {
INFO("MIB detected attempt=%d\n", mib_attempts);
state = DONE;
} else {
INFO("MIB not detected attempt=%d\n", mib_attempts);
if (mib_attempts >= 20) {
if (mib_attempts == 0) {
freq++;
state = INIT;
}
}
mib_attempts++;
} else {
nslot = (nslot+10)%20;
}
nslot = (nslot+10)%20;
break;
case DONE:
@ -509,84 +544,16 @@ int main(int argc, char **argv) {
}
/** FIXME: This is not necessary at all */
if (state == TRACK || (state == FIND && frame_cnt)) {
if (state == TRACK || state == FIND) {
memcpy(input_buffer, &input_buffer[FLEN], FLEN * sizeof(cf_t));
}
frame_cnt++;
}
}
print_to_matlab();
base_free();
printf("\n\nDone\n");
exit(0);
}
void print_to_matlab() {
int i;
FILE *f = fopen("output.m", "w");
if (!f) {
perror("fopen");
exit(-1);
}
fprintf(f, "fd=[");
for (i=0;i<nof_bands;i++) {
fprintf(f, "%g, ", channels[i].fd);
}
fprintf(f, "];\n");
fprintf(f, "rssi=[");
for (i=0;i<nof_bands;i++) {
fprintf(f, "%g, ", rssi[i]);
}
fprintf(f, "];\n");
fprintf(f, "rssi_d=[");
for (i=0;i<nof_bands/RSSI_DECIM;i++) {
fprintf(f, "%g, ", rssi_d[i]);
}
fprintf(f, "];\n");
/*
fprintf(f, "cfo=[");
for (i=0;i<nof_bands;i++) {
if (IS_SIGNAL(i)) {
fprintf(f, "%g, ", cfo[i]);
} else {
fprintf(f, "NaN, ");
}
}
fprintf(f, "];\n");
*/
fprintf(f, "p2a=[");
for (i=0;i<nof_bands;i++) {
if (IS_SIGNAL(i)) {
fprintf(f, "%g, ", p2a[i]);
} else {
fprintf(f, "0, ");
}
}
fprintf(f, "];\n");
fprintf(f, "clf;\n\n");
fprintf(f, "subplot(1,2,1)\n");
fprintf(f, "plot(fd, 10*log10(rssi)+30)\n");
fprintf(f, "grid on; xlabel('f [Mhz]'); ylabel('RSSI [dBm]');\n");
fprintf(f, "title('RSSI Estimation')\n");
fprintf(f, "subplot(1,2,2)\n");
fprintf(f, "plot(fd, p2a)\n");
fprintf(f, "grid on; xlabel('f [Mhz]'); ylabel('Peak-to-Avg [dB]');\n");
fprintf(f, "title('PSS Correlation')\n");
/*
fprintf(f, "subplot(1,3,3)\n");
fprintf(f, "plot(fd, cfo)\n");
fprintf(f, "grid on; xlabel('f [Mhz]'); ylabel(''); axis([min(fd) max(fd) -0.5 0.5]);\n");
fprintf(f, "title('CFO Estimation')\n");
*/
fprintf(f, "drawnow;\n");
fclose(f);
}

75
examples/pss_scan_usrp.c → examples/scan_pss.c
View File

@ -1,3 +1,30 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -8,9 +35,7 @@
#include <unistd.h>
#include "lte.h"
#include "uhd.h"
#include "uhd_utils.h"
#include "cuhd.h"
#define MHZ 1000000
#define SAMP_FREQ 1920000
@ -24,11 +49,11 @@
int band, earfcn=-1;
float find_threshold = 40.0, track_threshold = 8.0;
float find_threshold = 10.0, track_threshold = 8.0;
int earfcn_start=-1, earfcn_end = -1;
float rssi_threshold = -30.0;
float rssi_threshold = -45.0;
int max_track_lost=9;
int nof_frames_find=8, nof_frames_track=100, nof_samples_rssi=50000;
int nof_frames_find=20, nof_frames_track=100, nof_samples_rssi=50000;
int track_len=500;
cf_t *input_buffer;
@ -37,7 +62,7 @@ int *idx_v, *idx_valid, *t;
float *p2a_v;
void *uhd;
int nof_bands;
float gain = 20.0;
float uhd_gain = 20.0;
#define MAX_EARFCN 1000
lte_earfcn_t channels[MAX_EARFCN];
@ -62,7 +87,7 @@ void usage(char *prog) {
printf("\t-T pss_track_nof_frames [Default %d]\n", nof_frames_track);
printf("\t-t pss_track_threshold [Default %.2f]\n", track_threshold);
printf("\t-l pss_track_len [Default %d]\n", track_len);
printf("\t-g gain [Default %.2f dB]\n", gain);
printf("\t-g gain [Default %.2f dB]\n", uhd_gain);
printf("\t-v [set verbose to debug, default none]\n");
}
@ -98,7 +123,7 @@ void parse_args(int argc, char **argv) {
track_threshold = atof(argv[optind]);
break;
case 'g':
gain = atof(argv[optind]);
uhd_gain = atof(argv[optind]);
break;
case 'v':
verbose++;
@ -149,7 +174,7 @@ int base_init(int frame_length) {
/* open UHD device */
printf("Opening UHD device...\n");
if (uhd_open("",&uhd)) {
if (cuhd_open("",&uhd)) {
fprintf(stderr, "Error opening uhd\n");
exit(-1);
}
@ -159,7 +184,7 @@ int base_init(int frame_length) {
void base_free() {
uhd_close(&uhd);
cuhd_close(uhd);
free(input_buffer);
free(idx_v);
free(idx_valid);
@ -208,7 +233,7 @@ int rssi_scan() {
freqs[n] = channels[i].fd * MHZ;
n++;
}
if (uhd_rssi_scan(uhd, freqs, rssi_d, n, (double) RSSI_FS, nof_samples_rssi)) {
if (cuhd_rssi_scan(uhd, freqs, rssi_d, n, (double) RSSI_FS, nof_samples_rssi)) {
fprintf(stderr, "Error while doing RSSI scan\n");
return -1;
}
@ -218,7 +243,7 @@ int rssi_scan() {
for (i=0;i<nof_bands;i++) {
freqs[i] = channels[i].fd * MHZ;
}
if (uhd_rssi_scan(uhd, freqs, rssi, nof_bands, (double) RSSI_FS, nof_samples_rssi)) {
if (cuhd_rssi_scan(uhd, freqs, rssi, nof_bands, (double) RSSI_FS, nof_samples_rssi)) {
fprintf(stderr, "Error while doing RSSI scan\n");
return -1;
}
@ -257,13 +282,13 @@ int main(int argc, char **argv) {
fprintf(stderr, "Error initiating PSS/SSS\n");
exit(-1);
}
sync_pss_det_peakmean(&sfind);
sync_pss_det_peak_to_avg(&sfind);
if (sync_init(&strack, track_len)) {
fprintf(stderr, "Error initiating PSS/SSS\n");
exit(-1);
}
sync_pss_det_peakmean(&strack);
sync_pss_det_peak_to_avg(&strack);
nof_bands = lte_band_get_fd_band(band, channels, earfcn_start, earfcn_end, MAX_EARFCN);
printf("RSSI scan: %d freqs in band %d, RSSI threshold %.2f dBm\n", nof_bands, band, rssi_threshold);
@ -276,9 +301,9 @@ int main(int argc, char **argv) {
printf("\nDone. Starting PSS search on %d channels\n", n);
usleep(500000);
INFO("Setting sampling frequency %.2f MHz\n", (float) SAMP_FREQ/MHZ);
uhd_set_rx_srate(uhd, SAMP_FREQ);
cuhd_set_rx_srate(uhd, SAMP_FREQ);
uhd_set_rx_gain(uhd, gain);
cuhd_set_rx_gain(uhd, uhd_gain);
print_to_matlab();
@ -298,20 +323,20 @@ int main(int argc, char **argv) {
freq++;
} else {
if (state == TRACK || state == FIND) {
uhd_recv(uhd, &input_buffer[FLEN], FLEN, 1);
cuhd_recv(uhd, &input_buffer[FLEN], FLEN, 1);
}
switch(state) {
case INIT:
DEBUG("Stopping receiver...\n",0);
uhd_stop_rx_stream(uhd);
cuhd_stop_rx_stream(uhd);
/* set freq */
uhd_set_rx_freq(uhd, (double) channels[freq].fd * MHZ);
uhd_rx_wait_lo_locked(uhd);
cuhd_set_rx_freq(uhd, (double) channels[freq].fd * MHZ);
cuhd_rx_wait_lo_locked(uhd);
DEBUG("Set freq to %.3f MHz\n", (double) channels[freq].fd);
DEBUG("Starting receiver...\n",0);
uhd_start_rx_stream(uhd);
cuhd_start_rx_stream(uhd);
/* init variables */
frame_cnt = 0;
@ -319,7 +344,7 @@ int main(int argc, char **argv) {
cell_id = -1;
/* receive first frame */
uhd_recv(uhd, input_buffer, FLEN, 1);
cuhd_recv(uhd, input_buffer, FLEN, 1);
/* set find_threshold and go to FIND state */
sync_set_threshold(&sfind, find_threshold);
@ -328,7 +353,7 @@ int main(int argc, char **argv) {
break;
case FIND:
/* find peak in all frame */
find_idx = sync_run(&sfind, input_buffer, FLEN);
find_idx = sync_run(&sfind, &input_buffer[FLEN]);
DEBUG("[%3d/%d]: PAR=%.2f\n", freq, nof_bands, sync_get_peak_to_avg(&sfind));
if (find_idx != -1) {
/* if found peak, go to track and set lower threshold */
@ -357,7 +382,7 @@ int main(int argc, char **argv) {
filesink_write(&fs, &input_buffer[FLEN+find_idx+track_len], track_len);
track_idx = sync_run(&strack, input_buffer, FLEN + find_idx - track_len);
track_idx = sync_run(&strack, &input_buffer[FLEN + find_idx - track_len]);
p2a_v[frame_cnt] = sync_get_peak_to_avg(&strack);
/* save cell id for the best peak-to-avg */

39
examples/rssi_scan_usrp.c → examples/scan_rssi.c
View File

@ -1,3 +1,30 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -6,7 +33,7 @@
#include <math.h>
#include "lte.h"
#include "uhd.h"
#include "cuhd.h"
int nof_slots=1000;
int band;
@ -65,16 +92,16 @@ int base_init() {
/* open UHD device */
printf("Opening UHD device...\n");
if (uhd_open("",&uhd)) {
if (cuhd_open("",&uhd)) {
fprintf(stderr, "Error opening uhd\n");
exit(-1);
}
printf("Setting sampling frequency %.2f MHz\n", (float) SAMP_FREQ/MHZ);
uhd_set_rx_srate(uhd, SAMP_FREQ);
cuhd_set_rx_srate(uhd, SAMP_FREQ);
printf("Starting receiver...\n");
uhd_start_rx_stream(uhd);
cuhd_start_rx_stream(uhd);
return 0;
}
@ -101,12 +128,12 @@ int main(int argc, char **argv) {
int nof_bands = lte_band_get_fd_band(band, channels, earfcn_start, earfcn_end, MAX_EARFCN);
printf("Scanning %d freqs in band %d\n", nof_bands, band);
for (i=0;i<nof_bands;i++) {
uhd_set_rx_freq(uhd, (double) channels[i].fd * MHZ);
cuhd_set_rx_freq(uhd, (double) channels[i].fd * MHZ);
frame_cnt = 0;
nsamples=0;
rssi[i]=0;
while(frame_cnt < nof_slots) {
nsamples += uhd_recv(uhd, input_buffer, 1920, 1);
nsamples += cuhd_recv(uhd, input_buffer, 1920, 1);
rssi[i] += vec_avg_power_cf(input_buffer, 1920);
frame_cnt++;
}

57
examples/synch_test.c → examples/synch_file.c
View File

@ -1,3 +1,30 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
@ -10,28 +37,27 @@ char *input_file_name;
char *output_file_name="abs_corr.txt";
int nof_slots=100, frame_length=9600, symbol_sz=128;
float corr_peak_threshold=25.0;
int file_binary = 0;
int out_N_id_2 = 0, force_N_id_2=-1;
#define CFO_AUTO -9999.0
float force_cfo = CFO_AUTO;
void usage(char *prog) {
printf("Usage: %s [onlt] -i input_file\n", prog);
printf("Usage: %s [olntsNfcv] -i input_file\n", prog);
printf("\t-o output_file [Default %s]\n", output_file_name);
printf("\t-l frame_length [Default %d]\n", frame_length);
printf("\t-n number of frames [Default %d]\n", nof_slots);
printf("\t-t correlation threshold [Default %g]\n", corr_peak_threshold);
printf("\t-s symbol_sz [Default %d]\n", symbol_sz);
printf("\t-b Input files is binary [Default %s]\n", file_binary?"yes":"no");
printf("\t-N out_N_id_2 [Default %d]\n", out_N_id_2);
printf("\t-f force_N_id_2 [Default %d]\n", force_N_id_2);
printf("\t-c force_cfo [Default disabled]\n");
printf("\t-v verbose\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "ionltsbNfc")) != -1) {
while ((opt = getopt(argc, argv, "ionltsNfcv")) != -1) {
switch(opt) {
case 'i':
input_file_name = argv[optind];
@ -51,9 +77,6 @@ void parse_args(int argc, char **argv) {
case 's':
symbol_sz = atof(argv[optind]);
break;
case 'b':
file_binary = 1;
break;
case 'N':
out_N_id_2 = atoi(argv[optind]);
break;
@ -63,6 +86,9 @@ void parse_args(int argc, char **argv) {
case 'c':
force_cfo = atof(argv[optind]);
break;
case 'v':
verbose++;
break;
default:
usage(argv[0]);
exit(-1);
@ -79,6 +105,7 @@ int main(int argc, char **argv) {
filesink_t fsink;
pss_synch_t pss[3]; // One for each N_id_2
sss_synch_t sss[3]; // One for each N_id_2
cfo_t cfocorr;
int peak_pos[3];
float *cfo;
float peak_value[3];
@ -102,12 +129,11 @@ int main(int argc, char **argv) {
gettimeofday(&tdata[1], NULL);
printf("Initializing...");fflush(stdout);
file_data_type_t type = file_binary?COMPLEX_FLOAT_BIN:COMPLEX_FLOAT;
if (filesource_init(&fsrc, input_file_name, type)) {
if (filesource_init(&fsrc, input_file_name, COMPLEX_FLOAT_BIN)) {
fprintf(stderr, "Error opening file %s\n", input_file_name);
exit(-1);
}
if (filesink_init(&fsink, output_file_name, type)) {
if (filesink_init(&fsink, output_file_name, COMPLEX_FLOAT_BIN)) {
fprintf(stderr, "Error opening file %s\n", output_file_name);
exit(-1);
}
@ -128,6 +154,11 @@ int main(int argc, char **argv) {
exit(-1);
}
if (cfo_init(&cfocorr, frame_length)) {
fprintf(stderr, "Error initiating CFO\n");
return -1;
}
/* We have 2 options here:
* a) We create 3 pss objects, each initialized with a different N_id_2
* b) We create 1 pss object which scans for each N_id_2 one after another.
@ -165,7 +196,7 @@ int main(int argc, char **argv) {
gettimeofday(&tdata[1], NULL);
if (force_cfo != CFO_AUTO) {
nco_cexp_f_direct(input, -force_cfo/128, frame_length);
cfo_correct(&cfocorr, input, -force_cfo/128);
}
if (force_N_id_2 != -1) {
@ -229,8 +260,8 @@ int main(int argc, char **argv) {
sss_synch_free(&sss[N_id_2]);
}
filesource_close(&fsrc);
filesink_close(&fsink);
filesource_free(&fsrc);
filesink_free(&fsink);
free(input);
free(cfo);

168
examples/viterbi_test.c
View File

@ -1,168 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <math.h>
#include <time.h>
#include "lte.h"
typedef _Complex float cf_t;
int frame_length=1000, nof_slots=128;
float ebno_db = 5.0;
unsigned int seed=0;
bool tail_biting = false;
char message[40] = {0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,1,0,0,1,1,0,1,0,0,0,0,1};
void usage(char *prog) {
printf("Usage: %s [nl]\n", prog);
printf("\t-n nof_frames [Default %d]\n", nof_slots);
printf("\t-l frame_length [Default %d]\n", frame_length);
printf("\t-e ebno in dB [Default %.2f dB]\n", ebno_db);
printf("\t-s seed [Default 0=time]\n");
printf("\t-t tail_bitting [Default %s]\n", tail_biting?"yes":"no");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "nlste")) != -1) {
switch(opt) {
case 'n':
nof_slots = atoi(argv[optind]);
break;
case 'l':
frame_length = atoi(argv[optind]);
break;
case 'e':
ebno_db = atof(argv[optind]);
break;
case 's':
seed = atoi(argv[optind]);
break;
case 't':
tail_biting = true;
break;
default:
usage(argv[0]);
exit(-1);
}
}
}
int main(int argc, char **argv) {
viterbi_t dec;
convcoder_t cod;
modem_table_t modem;
demod_soft_t demod;
int frame_cnt;
float *llr;
char *data_tx, *data_rx, *symbols;
cf_t *iq;
int i;
parse_args(argc,argv);
if (!seed) {
seed = time(NULL);
}
srand(seed);
int coded_length = 3 * (frame_length + ((tail_biting)?0:6));
printf("Convolutional Code 1/3 K=7 Test\n");
printf(" Frame length: %d\n", frame_length);
printf(" Codeword length: %d\n", coded_length);
printf(" Tail bitting: %s\n", tail_biting?"yes":"no");
printf(" EbNo: %.2f\n", ebno_db);
data_tx = malloc(frame_length * sizeof(char));
if (!data_tx) {
perror("malloc");
exit(-1);
}
data_rx = malloc(frame_length * sizeof(char));
if (!data_rx) {
perror("malloc");
exit(-1);
}
symbols = malloc(coded_length * sizeof(char));
if (!symbols) {
perror("malloc");
exit(-1);
}
llr = malloc(coded_length * sizeof(float));
if (!llr) {
perror("malloc");
exit(-1);
}
iq = malloc(coded_length * sizeof(cf_t));
if (!iq) {
perror("malloc");
exit(-1);
}
cod.K = 7;
cod.R = 3;
cod.tail_biting = tail_biting;
cod.framelength = frame_length;
cod.poly[0] = 0x6D;
cod.poly[1] = 0x4F;
cod.poly[2] = 0x57;
float var = sqrt(pow(10,-ebno_db/10));
modem_table_init(&modem);
modem_table_std(&modem, LTE_QPSK, true);
demod_soft_init(&demod);
demod_soft_table_set(&demod, &modem);
demod_soft_alg_set(&demod, APPROX);
demod_soft_sigma_set(&demod, var);
viterbi_init(&dec, viterbi_37, cod.poly, frame_length, tail_biting);
/* read all file or nof_frames */
frame_cnt = 0;
unsigned int errors=0;
while (frame_cnt < nof_slots) {
/* generate data_tx */
for (i=0;i<frame_length;i++) {
data_tx[i] = message[i];
}
convcoder_encode(&cod, data_tx, symbols);
bit_fprint(stdout, symbols, 120);
mod_modulate(&modem, symbols, iq, coded_length);
if (ebno_db < 100.0) {
ch_awgn(iq, iq, var, coded_length/2);
}
demod_soft_demodulate(&demod, iq, llr, coded_length/2);
viterbi_decode(&dec, llr, data_rx);
errors += bit_diff(data_tx, data_rx, frame_length);
frame_cnt++;
}
printf("BER:\t%g\t%u errors\n", (float) errors/(frame_cnt*frame_length), errors);
viterbi_free(&dec);
free(data_tx);
free(symbols);
free(iq);
free(llr);
free(data_rx);
printf("Done\n");
exit(0);
}

35
graphics/CMakeLists.txt Normal file
View File

@ -0,0 +1,35 @@
#
# Copyright 2012-2013 The libLTE Developers. See the
# COPYRIGHT file at the top-level directory of this distribution.
#
# This file is part of the libLTE library.
#
# libLTE is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# libLTE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Install headers
########################################################################
INSTALL(DIRECTORY include/ DESTINATION "${INCLUDE_DIR}"
FILES_MATCHING PATTERN "*.h"
PATTERN ".svn" EXCLUDE
)
########################################################################
# Add the subdirectories
########################################################################
ADD_SUBDIRECTORY(lib)

48
graphics/include/plot.h Normal file
View File

@ -0,0 +1,48 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef _plot_h
#define _plot_h
#ifdef __cplusplus
extern "C" {
#endif
#include "plot/plot_real.h"
#include "plot/plot_scatter.h"
#include "plot/plot_complex.h"
#include "plot/plot_waterfall.h"
int plot_init();
void plot_exit();
#ifdef __cplusplus
}
#endif
#endif

59
graphics/include/plot/plot_complex.h Normal file
View File

@ -0,0 +1,59 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef _plot_complex_h
#define _plot_complex_h
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
typedef enum {
Ip, Q, Magnitude, Phase
} plot_complex_id_t;
typedef void* plot_complex_t;
int plot_complex_init(plot_complex_t *h);
void plot_complex_setTitle(plot_complex_t *h, char *title);
void plot_complex_setNewData(plot_complex_t *h, _Complex float *data,
int num_points);
void plot_complex_setXAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on);
void plot_complex_setYAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on);
void plot_complex_setXAxisScale(plot_complex_t *h, plot_complex_id_t id, double xMin, double xMax);
void plot_complex_setYAxisScale(plot_complex_t *h, plot_complex_id_t id, double yMin, double yMax);
void plot_complex_setXAxisRange(plot_complex_t *h, double xMin, double xMax);
#ifdef __cplusplus
}
#endif
#endif

55
graphics/include/plot/plot_real.h Normal file
View File

@ -0,0 +1,55 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef _plot_real_h
#define _plot_real_h
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
typedef void* plot_real_t;
int plot_real_init(plot_real_t *h);
void plot_real_setTitle(plot_real_t *h, char *title);
void plot_real_setNewData(plot_real_t *h, float *data,
int num_points);
void plot_real_setXAxisAutoScale(plot_real_t *h, bool on);
void plot_real_setYAxisAutoScale(plot_real_t *h, bool on);
void plot_real_setXAxisScale(plot_real_t *h, double xMin, double xMax);
void plot_real_setYAxisScale(plot_real_t *h, double yMin, double yMax);
void plot_real_setXAxisRange(plot_real_t *h, double xMin, double xMax);
void plot_real_setLabels(plot_real_t *h, char *xLabel, char *yLabel);
#ifdef __cplusplus
}
#endif
#endif

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef _plot_scatter_h
#define _plot_scatter_h
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
typedef void* plot_scatter_t;
int plot_scatter_init(plot_scatter_t *h);
void plot_scatter_setTitle(plot_scatter_t *h, char *title);
void plot_scatter_setNewData(plot_scatter_t *h, _Complex float *data,
int num_points);
void plot_scatter_setXAxisAutoScale(plot_scatter_t *h, bool on);
void plot_scatter_setYAxisAutoScale(plot_scatter_t *h, bool on);
void plot_scatter_setXAxisScale(plot_scatter_t *h, double xMin, double xMax);
void plot_scatter_setYAxisScale(plot_scatter_t *h, double yMin, double yMax);
void plot_scatter_setAxisLabels(plot_scatter_t *h, char *xLabel, char *yLabel);
#ifdef __cplusplus
}
#endif
#endif

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef _plot_waterfall_h
#define _plot_waterfall_h
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
typedef void* plot_waterfall_t;
int plot_waterfall_init(plot_waterfall_t *h);
void plot_waterfall_setTitle(plot_waterfall_t *h, char *title);
void plot_waterfall_appendNewData(plot_waterfall_t *h, float *data,
int num_points);
void plot_complex_setPlotXLabel(plot_waterfall_t *h, char *xLabel);
void plot_complex_setPlotYLabel(plot_waterfall_t *h, char *yLabel);
void plot_waterfall_setPlotXAxisRange(plot_waterfall_t *h, double xMin, double xMax);
void plot_waterfall_setPlotXAxisScale(plot_waterfall_t *h, double xMin, double xMax);
void plot_waterfall_setPlotYAxisScale(plot_waterfall_t *h, double yMin, double yMax);
void plot_waterfall_setSpectrogramXLabel(plot_waterfall_t *h, char* xLabel);
void plot_waterfall_setSpectrogramYLabel(plot_waterfall_t *h, char* yLabel);
void plot_waterfall_setSpectrogramXAxisRange(plot_waterfall_t *h, double xMin, double xMax);
void plot_waterfall_setSpectrogramYAxisRange(plot_waterfall_t *h, double yMin, double yMax);
void plot_waterfall_setSpectrogramZAxisScale(plot_waterfall_t *h, double zMin, double zMax);
#ifdef __cplusplus
}
#endif
#endif

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#
# Copyright 2012-2013 The libLTE Developers. See the
# COPYRIGHT file at the top-level directory of this distribution.
#
# This file is part of the libLTE library.
#
# libLTE is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# libLTE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Setup Qt and Qwt
########################################################################
FIND_PACKAGE(Qt4)
IF(QT4_FOUND)
INCLUDE(${QT_USE_FILE})
ENDIF(QT4_FOUND)
FIND_PACKAGE(Qwt)
IF(QT4_FOUND AND QWT_FOUND)
INCLUDE_DIRECTORIES(${QWT_INCLUDE_DIRS})
ENDIF(QT4_FOUND AND QWT_FOUND)
########################################################################
# Build the graphics library
########################################################################
file(GLOB modules *)
SET(SOURCES_ALL "")
FOREACH (_module ${modules})
IF(IS_DIRECTORY ${_module})
FILE(GLOB tmp "${_module}/*.cpp")
LIST(APPEND SOURCES_ALL ${tmp})
ENDIF(IS_DIRECTORY ${_module})
ENDFOREACH(_module ${modules})
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/../../)
IF(QWT_MAJOR_VERSION LESS 6)
MESSAGE(STATUS "QWT6 is required.")
ENDIF(QWT_MAJOR_VERSION LESS 6)
IF(QT4_FOUND AND QWT_FOUND AND QWT_MAJOR_VERSION EQUAL 6)
QT4_WRAP_CPP(lineplotwraps common/Lineplot.h)
QT4_WRAP_CPP(pointplotwraps common/Pointplot.h)
QT4_WRAP_CPP(spectrogramplotwraps common/Spectrogramplot.h)
QT4_WRAP_CPP(complex complexplot/ComplexWidget.h complexplot/ComplexplotWrapper.h)
QT4_WRAP_CPP(real realplot/RealWidget.h realplot/RealplotWrapper.h)
QT4_WRAP_CPP(scatter scatterplot/ScatterWidget.h scatterplot/ScatterplotWrapper.h)
QT4_WRAP_CPP(waterfall waterfallplot/WaterfallWidget.h waterfallplot/WaterfallplotWrapper.h)
INCLUDE_DIRECTORIES(common complexplot realplot scatterplot waterfallplot ${Boost_INCLUDE_DIRS})
ADD_LIBRARY(graphics ${eventwraps} ${lineplotwraps} ${pointplotwraps} ${spectrogramplotwraps} ${complex} ${real} ${scatter} ${waterfall} ${SOURCES_ALL} )
TARGET_LINK_LIBRARIES(graphics pthread ${QT_LIBRARIES} ${QWT_LIBRARIES})
INSTALL(TARGETS graphics DESTINATION ${LIBRARY_DIR})
LIBLTE_SET_PIC(graphics)
APPEND_INTERNAL_LIST(OPTIONAL_LIBS graphics)
ADD_SUBDIRECTORY(complexplot/test)
ADD_SUBDIRECTORY(realplot/test)
ADD_SUBDIRECTORY(scatterplot/test)
ADD_SUBDIRECTORY(waterfallplot/test)
MESSAGE(STATUS " GRAPHICS library will be installed.")
ELSE(QT4_FOUND AND QWT_FOUND AND AND QWT_MAJOR_VERSION EQUAL 6)
MESSAGE(STATUS " QT4 or Qwt6 not found. GRAPHICS library is not generated")
ENDIF(QT4_FOUND AND QWT_FOUND AND QWT_MAJOR_VERSION EQUAL 6)

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/**
* \file lib/generic/graphics/qt/common/Events.cpp
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Implementation of events used to pass data to Qt-based classes.
*/
#include "Events.h"
using namespace std;
const QEvent::Type RealDataEvent::type = static_cast<QEvent::Type>(10000);
RealDataEvent::RealDataEvent(double* dataPoints, int numPoints)
: QEvent(QEvent::Type(type))
{
dataPoints_ = new double[numPoints];
numPoints_ = numPoints;
memcpy(dataPoints_, dataPoints, numPoints*sizeof(double));
}
RealDataEvent::RealDataEvent(float* dataPoints, int numPoints)
: QEvent(QEvent::Type(type))
{
dataPoints_ = new double[numPoints];
numPoints_ = numPoints;
for(int i=0;i<numPoints_;i++)
{
dataPoints_[i] = (double)(dataPoints[i]);
}
}
RealDataEvent::~RealDataEvent()
{
delete[] dataPoints_;
}
const QEvent::Type ComplexDataEvent::type = static_cast<QEvent::Type>(10001);
ComplexDataEvent::ComplexDataEvent(complex<double>* dataPoints,
int numPoints)
: QEvent(QEvent::Type(type))
{
dataPoints_ = new complex<double>[numPoints];
numPoints_ = numPoints;
memcpy(dataPoints_, dataPoints, numPoints*sizeof(complex<double>));
}
ComplexDataEvent::ComplexDataEvent(complex<float>* dataPoints,
int numPoints)
: QEvent(QEvent::Type(type))
{
dataPoints_ = new complex<double>[numPoints];
numPoints_ = numPoints;
for(int i=0;i<numPoints_;i++)
{
dataPoints_[i] = complex<double>(dataPoints[i].real(),
dataPoints[i].imag());
}
}
ComplexDataEvent::~ComplexDataEvent()
{
delete[] dataPoints_;
}

72
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/**
* \file lib/generic/graphics/qt/common/Events.h
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Events used to pass data to Qt-based classes.
*/
#ifndef EVENTS_H
#define EVENTS_H
#include <QEvent>
#include <complex>
class RealDataEvent
: public QEvent
{
public:
const static QEvent::Type type;
RealDataEvent(double* dataPoints,
int numPoints);
RealDataEvent(float* dataPoints,
int numPoints);
virtual ~RealDataEvent();
double* dataPoints_;
int numPoints_;
};
class ComplexDataEvent
: public QEvent
{
public:
const static QEvent::Type type;
ComplexDataEvent(std::complex<double>* dataPoints,
int numPoints);
ComplexDataEvent(std::complex<float>* dataPoints,
int numPoints);
virtual ~ComplexDataEvent();
std::complex<double>* dataPoints_;
int numPoints_;
};
#endif // EVENTS_H

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/**
* \file lib/generic/graphics/qt/common/Lineplot.cpp
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Implementation of a simple line plotted using a QwtPlot.
*/
#include "Lineplot.h"
#include <algorithm>
class MyZoomer: public QwtPlotZoomer
{
public:
MyZoomer(QwtPlotCanvas *canvas):
QwtPlotZoomer(canvas)
{
setTrackerMode(AlwaysOn);
}
virtual QwtText trackerTextF(const QPointF &pos) const
{
QColor bg(Qt::white);
bg.setAlpha(200);
QwtText text = QwtPlotZoomer::trackerTextF(pos);
text.setBackgroundBrush( QBrush( bg ));
return text;
}
};
Lineplot::Lineplot(QWidget *parent)
:QwtPlot(parent)
,xMin_(0)
,xMax_(0)
{
counter_ = 0;
numPoints_ = 1;
indexPoints_ = new double[numPoints_];
dataPoints_ = new double[numPoints_];
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
QPalette palette;
palette.setColor(canvas()->backgroundRole(), QColor("white"));
canvas()->setPalette(palette);
curve_ = new QwtPlotCurve("Curve");
curve_->setPen(QPen(Qt::blue, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
curve_->setStyle(QwtPlotCurve::Lines);
curve_->setRawSamples(indexPoints_, dataPoints_, numPoints_);
curve_->setYAxis(QwtPlot::yLeft);
curve_->attach(this);
memset(dataPoints_, 0x0, numPoints_*sizeof(double));
for(int i=0;i<numPoints_;i++)
indexPoints_[i] = i;
enableAxis(QwtPlot::yRight);
QwtScaleWidget *leftAxis = axisWidget(QwtPlot::yLeft);
connect(leftAxis, SIGNAL(scaleDivChanged()), this, SLOT(linkScales()));
setAxisScaleEngine(QwtPlot::xBottom, new QwtLinearScaleEngine);
setAxisScaleEngine(QwtPlot::yLeft, new QwtLinearScaleEngine);
setAxisScaleEngine(QwtPlot::yRight, new QwtLinearScaleEngine);
axisScaleEngine(QwtPlot::xBottom)->setAttribute(QwtScaleEngine::Floating,true);
axisScaleEngine(QwtPlot::yLeft)->setAttribute(QwtScaleEngine::Floating,true);
axisScaleEngine(QwtPlot::yRight)->setAttribute(QwtScaleEngine::Floating,true);
zoomer_ = new MyZoomer(canvas());
zoomer_->setMousePattern(QwtEventPattern::MouseSelect1, Qt::LeftButton);
zoomer_->setMousePattern(QwtEventPattern::MouseSelect2, Qt::LeftButton,
Qt::ControlModifier);
panner_ = new QwtPlotPanner(canvas());
panner_->setMouseButton(Qt::RightButton);
magnifier_ = new QwtPlotMagnifier(canvas());
magnifier_->setMouseButton(Qt::NoButton);
}
Lineplot::~Lineplot()
{
delete[] indexPoints_;
delete[] dataPoints_;
}
void Lineplot::setData(double* data, int n)
{
if(numPoints_ != n)
{
numPoints_ = n;
delete[] indexPoints_;
delete[] dataPoints_;
indexPoints_ = new double[numPoints_];
dataPoints_ = new double[numPoints_];
if(xMin_==xMax_)
{
for(int i=0;i<numPoints_;i++)
indexPoints_[i] = i;
}
else
{
double step = (xMax_-xMin_)/numPoints_;
double val = xMin_;
for(int i=0;i<numPoints_;i++,val+=step)
indexPoints_[i] = val;
}
}
memcpy(dataPoints_, data, numPoints_*sizeof(double));
//Need to setRawSamples again for autoscaling to work
curve_->setRawSamples(indexPoints_, dataPoints_, numPoints_);
resetZoom();
}
void Lineplot::setXAxisRange(double xMin, double xMax)
{
xMin_ = xMin;
xMax_ = xMax;
double step = (xMax_-xMin_)/numPoints_;
double val = xMin_;
for(int i=0;i<numPoints_;i++,val+=step)
indexPoints_[i] = val;
curve_->setRawSamples(indexPoints_, dataPoints_, numPoints_);
}
void Lineplot::resetZoom()
{
zoomer_->setZoomBase(curve_->boundingRect());
}
void Lineplot::linkScales()
{
setAxisScaleDiv(QwtPlot::yRight, *axisScaleDiv(QwtPlot::yLeft));
}

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/**
* \file lib/generic/graphics/qt/common/Lineplot.h
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* A simple line plotted using a QwtPlot.
*/
#ifndef LINEPLOT_H
#define LINEPLOT_H
#include <qapplication.h>
#include <qwt_plot.h>
#include <qwt_painter.h>
#include <qwt_plot_canvas.h>
#include <qwt_plot_curve.h>
#include <qwt_scale_engine.h>
#include <qwt_scale_widget.h>
#include <qwt_plot_zoomer.h>
#include <qwt_plot_panner.h>
#include <qwt_plot_magnifier.h>
class Lineplot
: public QwtPlot
{
Q_OBJECT
public:
Lineplot(QWidget* parent = 0);
virtual ~Lineplot();
void setData(double* data, int n);
void setXAxisRange(double xMin, double xMax);
void resetZoom();
public slots:
void linkScales();
private:
QwtPlotCurve* curve_;
QwtPlotPanner* panner_;
QwtPlotZoomer* zoomer_;
QwtPlotMagnifier* magnifier_;
double* indexPoints_;
double* dataPoints_;
int numPoints_;
int counter_;
double xMin_;
double xMax_;
};
#endif // LINEPLOT_H

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/**
* \file lib/generic/graphics/qt/common/Pointplot.h
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Implementation of a plot of complex data values as points on an IQ axis.
*/
#include "Pointplot.h"
#include <algorithm>
using namespace std;
class MyZoomer: public QwtPlotZoomer
{
public:
MyZoomer(QwtPlotCanvas *canvas):
QwtPlotZoomer(canvas)
{
setTrackerMode(AlwaysOn);
}
virtual QwtText trackerTextF(const QPointF &pos) const
{
QColor bg(Qt::white);
bg.setAlpha(200);
QwtText text = QwtPlotZoomer::trackerTextF(pos);
text.setBackgroundBrush( QBrush( bg ));
return text;
}
};
Pointplot::Pointplot(QWidget *parent)
:QwtPlot(parent)
{
counter_ = 0;
numPoints_ = 1;
realPoints_ = new double[numPoints_];
imagPoints_ = new double[numPoints_];
QPalette palette;
palette.setColor(canvas()->backgroundRole(), QColor("white"));
canvas()->setPalette(palette);
setAxisScaleEngine(QwtPlot::xBottom, new QwtLinearScaleEngine);
setAxisTitle(QwtPlot::xBottom, "In-phase");
setAxisScaleEngine(QwtPlot::yLeft, new QwtLinearScaleEngine);
setAxisTitle(QwtPlot::yLeft, "Quadrature");
curve_ = new QwtPlotCurve("Constellation Points");
curve_->attach(this);
curve_->setPen(QPen(Qt::blue, 5, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
curve_->setStyle(QwtPlotCurve::Dots);
curve_->setRawSamples(realPoints_, imagPoints_, numPoints_);
memset(realPoints_, 0x0, numPoints_*sizeof(double));
memset(imagPoints_, 0x0, numPoints_*sizeof(double));
zoomer_ = new MyZoomer(canvas());
zoomer_->setMousePattern(QwtEventPattern::MouseSelect1, Qt::LeftButton);
zoomer_->setMousePattern(QwtEventPattern::MouseSelect2, Qt::LeftButton,
Qt::ControlModifier);
panner_ = new QwtPlotPanner(canvas());
panner_->setMouseButton(Qt::RightButton);
magnifier_ = new QwtPlotMagnifier(canvas());
magnifier_->setMouseButton(Qt::NoButton);
}
Pointplot::~Pointplot()
{
delete[] realPoints_;
delete[] imagPoints_;
}
void Pointplot::setData(double* iData, double* qData, int n)
{
if(numPoints_ != n)
{
numPoints_ = n;
delete[] realPoints_;
delete[] imagPoints_;
realPoints_ = new double[numPoints_];
imagPoints_ = new double[numPoints_];
}
copy(iData, iData+n, realPoints_);
copy(qData, qData+n, imagPoints_);
//Need to setRawSamples again for autoscaling to work
curve_->setRawSamples(realPoints_, imagPoints_, numPoints_);
zoomer_->setZoomBase(curve_->boundingRect());
}

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/**
* \file lib/generic/graphics/qt/common/Pointplot.h
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* A plot of complex data values as points on an IQ axis.
*/
#ifndef POINTPLOT_H
#define POINTPLOT_H
#include <qapplication.h>
#include <qwt_plot.h>
#include <qwt_painter.h>
#include <qwt_plot_canvas.h>
#include <qwt_plot_curve.h>
#include <qwt_scale_engine.h>
#include <qwt_scale_widget.h>
#include <qwt_plot_zoomer.h>
#include <qwt_plot_panner.h>
#include <qwt_plot_magnifier.h>
#include <complex>
class Pointplot
: public QwtPlot
{
Q_OBJECT
public:
Pointplot(QWidget* parent = 0);
virtual ~Pointplot();
void setData(double* iData, double* qData, int n);
private:
QwtPlotCurve* curve_;
QwtPlotPanner* panner_;
QwtPlotZoomer* zoomer_;
QwtPlotMagnifier* magnifier_;
struct opReal{double operator()(std::complex<double> i) const{return real(i);}};
struct opImag{double operator()(std::complex<double> i) const{return imag(i);}};
double* realPoints_;
double* imagPoints_;
int numPoints_;
int counter_;
};
#endif // POINTPLOT_H

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/**
* \file lib/generic/graphics/qt/common/Spectrogramplot.cpp
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* A spectrogram plot which acts as a waterfall. New data is plotted
* at the top row of the spectrogram and all old data is shifted
* downwards.
*/
#include <qprinter.h>
#include <qprintdialog.h>
#include <qwt_color_map.h>
#include <qwt_plot_spectrogram.h>
#include <qwt_scale_widget.h>
#include <qwt_scale_draw.h>
#include <qwt_plot_layout.h>
#include <qwt_plot_renderer.h>
#include <qwt_matrix_raster_data.h>
#include "Spectrogramplot.h"
class MyZoomer: public QwtPlotZoomer
{
public:
MyZoomer(QwtPlotCanvas *canvas):
QwtPlotZoomer(canvas)
{
setTrackerMode(AlwaysOn);
}
virtual QwtText trackerTextF(const QPointF &pos) const
{
QColor bg(Qt::white);
bg.setAlpha(200);
QwtText text = QwtPlotZoomer::trackerTextF(pos);
text.setBackgroundBrush( QBrush( bg ));
return text;
}
};
//Set up a colormap to use the "jet" colormap from matlab
class ColorMap
:public QwtLinearColorMap
{
public:
ColorMap()
:QwtLinearColorMap(QColor(0,0,189), QColor(132,0,0))
{
double pos;
pos = 1.0/13.0*1.0; addColorStop(pos, QColor(0,0,255));
pos = 1.0/13.0*2.0; addColorStop(pos, QColor(0,66,255));
pos = 1.0/13.0*3.0; addColorStop(pos, QColor(0,132,255));
pos = 1.0/13.0*4.0; addColorStop(pos, QColor(0,189,255));
pos = 1.0/13.0*5.0; addColorStop(pos, QColor(0,255,255));
pos = 1.0/13.0*6.0; addColorStop(pos, QColor(66,255,189));
pos = 1.0/13.0*7.0; addColorStop(pos, QColor(132,255,132));
pos = 1.0/13.0*8.0; addColorStop(pos, QColor(189,255,66));
pos = 1.0/13.0*9.0; addColorStop(pos, QColor(255,255,0));
pos = 1.0/13.0*10.0; addColorStop(pos, QColor(255,189,0));
pos = 1.0/13.0*12.0; addColorStop(pos, QColor(255,66,0));
pos = 1.0/13.0*13.0; addColorStop(pos, QColor(189,0,0));
}
};
Spectrogramplot::Spectrogramplot(int numDataPoints, int numRows, QWidget *parent)
:QwtPlot(parent)
,nData_(numDataPoints)
,nRows_(numRows)
{
spectrogram_ = new QwtPlotSpectrogram();
spectrogram_->setRenderThreadCount(0); // set system specific thread count
data_ = new WaterfallData(nData_, nRows_);
spectrogram_->attach(this);
setAxisScaleEngine(QwtPlot::xBottom, new QwtLinearScaleEngine);
setAxisScaleEngine(QwtPlot::yLeft, new QwtLinearScaleEngine);
axisScaleEngine(QwtPlot::xBottom)->setAttribute(QwtScaleEngine::Floating,true);
axisScaleEngine(QwtPlot::yLeft)->setAttribute(QwtScaleEngine::Floating,true);
spectrogram_->setColorMap(new ColorMap());
spectrogram_->setData(data_);
setXAxisRange(0, nData_);
setYAxisRange(0, nRows_);
setZAxisScale(-1,1);
// LeftButton for the zooming
// MidButton for the panning
// RightButton: zoom out by 1
// Ctrl+RighButton: zoom out to full size
zoomer_ = new MyZoomer(canvas());
zoomer_->setMousePattern(QwtEventPattern::MouseSelect1,
Qt::LeftButton);
zoomer_->setMousePattern(QwtEventPattern::MouseSelect2,
Qt::LeftButton, Qt::ControlModifier);
panner_ = new QwtPlotPanner(canvas());
panner_->setAxisEnabled(QwtPlot::yRight, false);
panner_->setMouseButton(Qt::RightButton);
magnifier_ = new QwtPlotMagnifier(canvas());
magnifier_->setMouseButton(Qt::NoButton);
// Avoid jumping when labels with more/less digits
// appear/disappear when scrolling vertically
const QFontMetrics fm(axisWidget(QwtPlot::yLeft)->font());
QwtScaleDraw *sd = axisScaleDraw(QwtPlot::yLeft);
sd->setMinimumExtent( fm.width("100.00") );
const QColor c(Qt::darkBlue);
zoomer_->setRubberBandPen(c);
zoomer_->setTrackerPen(c);
}
void Spectrogramplot::appendData(double* data, int n)
{
data_->appendData(data, n);
}
void Spectrogramplot::setXAxisRange(double xMin, double xMax)
{
xMin_ = xMin;
xMax_ = xMax;
data_->setInterval( Qt::XAxis, QwtInterval( xMin_, xMax_ ) );
plotLayout()->setAlignCanvasToScales(true);
replot();
}
void Spectrogramplot::setYAxisRange(double yMin, double yMax)
{
yMin_ = yMin;
yMax_ = yMax;
data_->setInterval( Qt::YAxis, QwtInterval( yMin_, yMax_ ) );
plotLayout()->setAlignCanvasToScales(true);
replot();
}
void Spectrogramplot::setZAxisScale(double zMin, double zMax)
{
zMin_ = zMin;
zMax_ = zMax;
data_->setInterval( Qt::ZAxis, QwtInterval( zMin_, zMax_ ) );
//Set up the intensity bar on the right
const QwtInterval zInterval = spectrogram_->data()->interval( Qt::ZAxis );
QwtScaleWidget *rightAxis = axisWidget(QwtPlot::yRight);
rightAxis->setColorBarEnabled(true);
rightAxis->setColorMap( zInterval, new ColorMap());
setAxisScale(QwtPlot::yRight, zInterval.minValue(), zInterval.maxValue() );
enableAxis(QwtPlot::yRight);
plotLayout()->setAlignCanvasToScales(true);
replot();
}
double Spectrogramplot::min()
{
return data_->min();
}
double Spectrogramplot::max()
{
return data_->max();
}
void Spectrogramplot::autoscale()
{
setZAxisScale(min(),max());
}

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/**
* \file lib/generic/graphics/qt/common/Spectrogramplot.h
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* A spectrogram plot which acts as a waterfall. New data is plotted
* at the top row of the spectrogram and all old data is shifted
* downwards.
*/
#ifndef SPECTROGRAMPLOT_H
#define SPECTROGRAMPLOT_H
#include <qwt_plot.h>
#include <qwt_scale_engine.h>
#include <qwt_scale_widget.h>
#include <qwt_plot_zoomer.h>
#include <qwt_plot_panner.h>
#include <qwt_plot_magnifier.h>
#include <qwt_plot_spectrogram.h>
#include "WaterfallData.h"
class Spectrogramplot
:public QwtPlot
{
Q_OBJECT
public:
Spectrogramplot(int numDataPoints, int numRows, QWidget * = NULL);
void appendData(double* data, int n);
void setXAxisRange(double xMin, double xMax);
void setYAxisRange(double yMin, double yMax);
void setZAxisScale(double zMin, double zMax);
double min();
double max();
void autoscale();
private:
QwtPlotZoomer* zoomer_;
QwtPlotPanner *panner_;
QwtPlotMagnifier *magnifier_;
QwtPlotSpectrogram *spectrogram_;
WaterfallData* data_;
int nData_;
int nRows_;
double xMin_;
double xMax_;
double yMin_;
double yMax_;
double zMin_;
double zMax_;
};
#endif // SPECTROGRAMPLOT_H

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#ifndef WATERFALLDATA_H
#define WATERFALLDATA_H
#include <qwt_raster_data.h>
#include <boost/circular_buffer.hpp>
#include <boost/shared_ptr.hpp>
#include <vector>
#include <algorithm>
#include <cmath>
#include <assert.h>
class WaterfallData
:public QwtRasterData
{
public:
typedef std::vector<double> Vec;
typedef boost::shared_ptr< std::vector<double> > VecPtr;
typedef boost::circular_buffer< VecPtr > VecPtrBuf;
typedef VecPtrBuf::iterator VecPtrBufIt;
WaterfallData(int numDataPoints, int numRows)
:QwtRasterData()
,nData_(numDataPoints)
,nRows_(numRows)
,data_(numRows)
{
for(int i=0;i<nRows_;i++)
{
data_.push_front(VecPtr(new std::vector<double>(nData_)));
data_[0]->assign(nData_, 0.0);
}
}
void appendData(double* data, int n)
{
assert(n == nData_);
VecPtr v = data_.front();
v->assign(data, data+n);
data_.push_back(v);
}
double max()
{
Vec maxVec;
for(int i=0;i<nRows_;i++)
{
VecPtr v = data_[i];
maxVec.push_back(*(std::max_element(v->begin(),v->end())));
}
return *(std::max_element(maxVec.begin(),maxVec.end()));
}
double min()
{
Vec minVec;
for(int i=0;i<nRows_;i++)
{
VecPtr v = data_[i];
minVec.push_back(*(std::min_element(v->begin(),v->end())));
}
return *(std::min_element(minVec.begin(),minVec.end()));
}
double value(double x, double y) const
{
double bottom = interval(Qt::YAxis).minValue();
double top = interval(Qt::YAxis).maxValue();
double left = interval(Qt::XAxis).minValue();
double right = interval(Qt::XAxis).maxValue();
double xStep = std::abs(right-left)/nData_;
double yStep = std::abs(top-bottom)/nRows_;
int ix = (x-left) / xStep;
int iy = (y-bottom) / yStep;
if(ix >= nData_)
ix = nData_-1;
if(iy >= nRows_)
iy = nRows_-1;
double ret = (*data_[iy])[ix];
return ret;
}
private:
VecPtrBuf data_;
int nData_;
int nRows_;
};
#endif // WATERFALLDATA_H

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include "plot.h"
#include <stdio.h>
#include <QApplication>
#include <QMainWindow>
#include <unistd.h>
pthread_t thread;
static int plot_initiated=0;
void *qt_thread(void *arg)
{
int argc = 1;
char* argv[] = { const_cast<char *>("libLTE Visualizer"), NULL };
QApplication app(argc, argv);
app.exec();
pthread_exit(NULL);
}
int plot_init() {
if (!plot_initiated) {
/** FIXME: Set attributes to detachable */
if (pthread_create(&thread, NULL, qt_thread, NULL)) {
perror("phtread_create");
return -1;
}
usleep(100000);
plot_initiated=1;
}
return 0;
}
void plot_exit() {
if (plot_initiated) {
pthread_cancel(thread);
}
}

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#include "ComplexWidget.h"
#include "Lineplot.h"
#include "Events.h"
#include <qlayout.h>
#include <algorithm>
using namespace std;
ComplexWidget::ComplexWidget(QWidget *parent)
:QWidget(parent)
{
i_ = new Lineplot();
q_ = new Lineplot();
m_ = new Lineplot();
p_ = new Lineplot();
i_->setAxisTitle(QwtPlot::xBottom, "In-phase");
q_->setAxisTitle(QwtPlot::xBottom, "Quadrature");
m_->setAxisTitle(QwtPlot::xBottom, "Magnitude");
p_->setAxisTitle(QwtPlot::xBottom, "Phase");
QVBoxLayout* vLayout1 = new QVBoxLayout(this);
vLayout1->addWidget(i_);
vLayout1->addWidget(q_);
vLayout1->addWidget(m_);
vLayout1->addWidget(p_);
numPoints_ = 16;
iData_ = new double[numPoints_];
qData_ = new double[numPoints_];
mData_ = new double[numPoints_];
pData_ = new double[numPoints_];
timerId_ = startTimer(10);
haveNewData_ = false;
}
ComplexWidget::~ComplexWidget()
{
delete i_;
delete q_;
delete m_;
delete p_;
}
void ComplexWidget::customEvent( QEvent * e )
{
if(e->type() == ComplexDataEvent::type)
{
ComplexDataEvent* dataEvent = (ComplexDataEvent*)e;
setData(dataEvent);
}
}
void ComplexWidget::timerEvent(QTimerEvent *event)
{
if(event->timerId() == timerId_)
{
if(haveNewData_)
{
i_->replot();
q_->replot();
m_->replot();
p_->replot();
haveNewData_ = false;
}
return;
}
QWidget::timerEvent(event);
}
void ComplexWidget::setData(ComplexDataEvent* e)
{
if(e->numPoints_ != numPoints_)
{
numPoints_ = e->numPoints_;
delete [] iData_;
delete [] qData_;
delete [] mData_;
delete [] pData_;
iData_ = new double[numPoints_];
qData_ = new double[numPoints_];
mData_ = new double[numPoints_];
pData_ = new double[numPoints_];
}
transform(e->dataPoints_, &e->dataPoints_[numPoints_], iData_, opReal());
transform(e->dataPoints_, &e->dataPoints_[numPoints_], qData_, opImag());
transform(e->dataPoints_, &e->dataPoints_[numPoints_], mData_, opAbs());
transform(e->dataPoints_, &e->dataPoints_[numPoints_], pData_, opArg());
i_->setData(iData_, numPoints_);
q_->setData(qData_, numPoints_);
m_->setData(mData_, numPoints_);
p_->setData(pData_, numPoints_);
haveNewData_ = true;
}
void ComplexWidget::setWidgetTitle(QString title)
{
setWindowTitle(title);
}
void ComplexWidget::setWidgetXAxisScale(int id, double xMin, double xMax)
{
switch(id)
{
case 0:
i_->setAxisScale(QwtPlot::xBottom, xMin, xMax);
break;
case 1:
q_->setAxisScale(QwtPlot::xBottom, xMin, xMax);
break;
case 2:
m_->setAxisScale(QwtPlot::xBottom, xMin, xMax);
break;
case 3:
p_->setAxisScale(QwtPlot::xBottom, xMin, xMax);
break;
default:
break;
}
}
void ComplexWidget::setWidgetYAxisScale(int id, double yMin, double yMax)
{
switch(id)
{
case 0:
i_->setAxisScale(QwtPlot::yLeft, yMin, yMax);
break;
case 1:
q_->setAxisScale(QwtPlot::yLeft, yMin, yMax);
break;
case 2:
m_->setAxisScale(QwtPlot::yLeft, yMin, yMax);
break;
case 3:
p_->setAxisScale(QwtPlot::yLeft, yMin, yMax);
break;
default:
break;
}
}
void ComplexWidget::setWidgetXAxisAutoScale(int id, bool on=true)
{
switch(id)
{
case 0:
i_->setAxisAutoScale(QwtPlot::xBottom, on);
break;
case 1:
q_->setAxisAutoScale(QwtPlot::xBottom, on);
break;
case 2:
m_->setAxisAutoScale(QwtPlot::xBottom, on);
break;
case 3:
p_->setAxisAutoScale(QwtPlot::xBottom, on);
break;
default:
break;
}
}
void ComplexWidget::setWidgetYAxisAutoScale(int id, bool on=true)
{
switch(id)
{
case 0:
i_->setAxisAutoScale(QwtPlot::yLeft, on);
break;
case 1:
q_->setAxisAutoScale(QwtPlot::yLeft, on);
break;
case 2:
m_->setAxisAutoScale(QwtPlot::yLeft, on);
break;
case 3:
p_->setAxisAutoScale(QwtPlot::yLeft, on);
break;
default:
break;
}
}
void ComplexWidget::setWidgetXAxisRange(double xMin, double xMax)
{
i_->setXAxisRange(xMin, xMax);
q_->setXAxisRange(xMin, xMax);
m_->setXAxisRange(xMin, xMax);
p_->setXAxisRange(xMin, xMax);
}

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#ifndef COMPLEXWIDGET_H
#define COMPLEXWIDGET_H
#include <qapplication.h>
#include <qwidget.h>
#include <complex>
class ComplexDataEvent;
class Lineplot;
class ComplexWidget
: public QWidget
{
Q_OBJECT
public:
ComplexWidget(QWidget* parent = 0);
virtual ~ComplexWidget();
public slots:
void customEvent( QEvent * e );
void setWidgetTitle(QString title);
void setWidgetXAxisScale(int id, double xMin, double xMax);
void setWidgetYAxisScale(int id, double yMin, double yMax);
void setWidgetXAxisAutoScale(int id, bool on);
void setWidgetYAxisAutoScale(int id, bool on);
void setWidgetXAxisRange(double xMin, double xMax);
protected:
virtual void timerEvent(QTimerEvent *event);
private:
void setData(ComplexDataEvent* e);
Lineplot* i_; //In-phase plot
Lineplot* q_; //Quadrature plot
Lineplot* m_; //Magnitude plot
Lineplot* p_; //Phase plot
struct opReal{double operator()(std::complex<double> i) const{return real(i);}};
struct opImag{double operator()(std::complex<double> i) const{return imag(i);}};
struct opAbs{double operator()(std::complex<double> i) const{return abs(i);}};
struct opArg{double operator()(std::complex<double> i) const{return arg(i);}};
double* iData_;
double* qData_;
double* mData_;
double* pData_;
int numPoints_;
int timerId_;
bool haveNewData_;
};
#endif // COMPLEXWIDGET_H

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#include "Complexplot.h"
#include "ComplexplotWrapper.h"
using namespace std;
Complexplot::Complexplot()
{
plot_ = new ComplexplotWrapper;
}
Complexplot::~Complexplot()
{
delete plot_;
}
void Complexplot::setNewData(complex<double>* data, int numPoints)
{
plot_->setNewData(data, numPoints);
}
void Complexplot::setNewData(complex<float>* data, int numPoints)
{
plot_->setNewData(data, numPoints);
}
void Complexplot::setTitle(std::string title)
{
plot_->setTitle(title);
}
void Complexplot::setXAxisAutoScale(PlotId id, bool on=true)
{
plot_->setXAxisAutoScale(id, on);
}
void Complexplot::setYAxisAutoScale(PlotId id, bool on=true)
{
plot_->setYAxisAutoScale(id, on);
}
void Complexplot::setXAxisScale(PlotId id, double xMin, double xMax)
{
plot_->setXAxisScale(id, xMin, xMax);
}
void Complexplot::setYAxisScale(PlotId id, double yMin, double yMax)
{
plot_->setYAxisScale(id, yMin, yMax);
}
void Complexplot::setXAxisRange(double xMin, double xMax)
{
plot_->setXAxisRange(xMin, xMax);
}

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#ifndef COMPLEXPLOT_H
#define COMPLEXPLOT_H
#include <string>
#include <complex>
class ComplexplotWrapper;
class Complexplot
{
public:
enum PlotId
{
I,
Q,
Magnitude,
Phase
};
Complexplot();
~Complexplot();
template<class Iterator>
void setNewData(Iterator begin, Iterator end);
void setNewData(std::complex<float>* data, int numPoints);
void setNewData(std::complex<double>* data, int numPoints);
void setTitle(std::string title);
void setXAxisAutoScale(PlotId id, bool on);
void setYAxisAutoScale(PlotId id, bool on);
void setXAxisScale(PlotId id, double xMin, double xMax);
void setYAxisScale(PlotId id, double yMin, double yMax);
void setXAxisRange(double xMin, double xMax);
private:
ComplexplotWrapper* plot_;
};
template<class Iterator>
void Complexplot::setNewData(Iterator begin, Iterator end)
{
int numPoints = end-begin;
std::complex<double>* data = new std::complex<double>[numPoints];
for(int i=0;begin!=end;begin++,i++)
{
data[i] = *begin;
}
setNewData(data, numPoints);
delete[] data;
}
#endif // COMPLEXPLOT_H

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#include "ComplexplotWrapper.h"
#include "ComplexWidget.h"
#include "Events.h"
#include <qapplication.h>
#include <QThread>
using namespace std;
ComplexplotWrapper::ComplexplotWrapper()
:widget_(NULL)
,destroyed_(true)
{
if(QCoreApplication::instance() == NULL)
return; //TODO: throw exception here in Iris
if(QCoreApplication::instance()->thread() == QThread::currentThread())
{
connect( this, SIGNAL( createWidgetSignal() ),
this, SLOT(createWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignal() ),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()) );
}
else
{
connect( this, SIGNAL( createWidgetSignal() ),
this, SLOT(createWidgetSlot()),
Qt::BlockingQueuedConnection );
connect( this, SIGNAL( destroyWidgetSignal() ),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()),
Qt::BlockingQueuedConnection );
moveToThread(QCoreApplication::instance()->thread());
}
emit createWidgetSignal();
}
ComplexplotWrapper::~ComplexplotWrapper()
{
if(destroyed_)
emit destroyWidgetSignal();
else
emit destroyWidgetSignalBlocking();
}
void ComplexplotWrapper::createWidgetSlot()
{
widget_ = new ComplexWidget;
destroyed_ = false;
widget_->setAttribute(Qt::WA_DeleteOnClose, true);
connect(widget_, SIGNAL( destroyed() ),
this, SLOT( widgetDestroyed() ));
connect(this, SIGNAL(setWidgetTitle(QString)),
widget_, SLOT(setWidgetTitle(QString)));
connect(this, SIGNAL(setWidgetXAxisScale(int,double,double)),
widget_, SLOT(setWidgetXAxisScale(int,double,double)));
connect(this, SIGNAL(setWidgetYAxisScale(int,double,double)),
widget_, SLOT(setWidgetYAxisScale(int,double,double)));
connect(this, SIGNAL(setWidgetXAxisAutoScale(int,bool)),
widget_, SLOT(setWidgetXAxisAutoScale(int,bool)));
connect(this, SIGNAL(setWidgetYAxisAutoScale(int,bool)),
widget_, SLOT(setWidgetYAxisAutoScale(int,bool)));
connect(this, SIGNAL(setWidgetXAxisRange(double,double)),
widget_, SLOT(setWidgetXAxisRange(double,double)));
widget_->resize( 800, 600 );
widget_->show();
}
void ComplexplotWrapper::destroyWidgetSlot()
{
if(widget_)
delete widget_;
widget_ = NULL;
}
void ComplexplotWrapper::widgetDestroyed()
{
destroyed_ = true;
}
void ComplexplotWrapper::setNewData(complex<double>* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new ComplexDataEvent(data, numPoints));
}
void ComplexplotWrapper::setNewData(complex<float>* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new ComplexDataEvent(data, numPoints));
}
void ComplexplotWrapper::setTitle(std::string title)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(title.c_str());
emit setWidgetTitle(str);
}
void ComplexplotWrapper::setXAxisAutoScale(int id, bool on=true)
{
if(destroyed_)
return;
emit setWidgetXAxisAutoScale(id, on);
}
void ComplexplotWrapper::setYAxisAutoScale(int id, bool on=true)
{
if(destroyed_)
return;
emit setWidgetYAxisAutoScale(id, on);
}
void ComplexplotWrapper::setXAxisScale(int id, double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetXAxisScale(id, xMin, xMax);
}
void ComplexplotWrapper::setYAxisScale(int id, double yMin, double yMax)
{
if(destroyed_)
return;
emit setWidgetYAxisScale(id, yMin, yMax);
}
void ComplexplotWrapper::setXAxisRange(double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetXAxisRange(xMin, xMax);
}

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#ifndef COMPLEXPLOTWRAPPER_H
#define COMPLEXPLOTWRAPPER_H
#include <qapplication.h>
#include <complex>
class ComplexWidget;
class ComplexplotWrapper
: QObject
{
Q_OBJECT
public:
ComplexplotWrapper();
~ComplexplotWrapper();
void setNewData(std::complex<float>* data, int numPoints);
void setNewData(std::complex<double>* data, int numPoints);
void setTitle(std::string title);
void setXAxisAutoScale(int id, bool on);
void setYAxisAutoScale(int id, bool on);
void setXAxisScale(int id, double xMin, double xMax);
void setYAxisScale(int id, double yMin, double yMax);
void setXAxisRange(double xMin, double xMax);
public slots:
void createWidgetSlot();
void destroyWidgetSlot();
void widgetDestroyed();
signals:
void createWidgetSignal();
void destroyWidgetSignal();
void destroyWidgetSignalBlocking();
void setWidgetTitle(QString title);
void setWidgetXAxisAutoScale(int id, bool on);
void setWidgetYAxisAutoScale(int id, bool on);
void setWidgetXAxisScale(int id, double xMin, double xMax);
void setWidgetYAxisScale(int id, double yMin, double yMax);
void setWidgetXAxisRange(double xMin, double xMax);
private:
ComplexWidget* widget_;
bool destroyed_;
};
#endif // COMPLEXPLOTWRAPPER_H

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include "plot/plot_complex.h"
#include "Complexplot.h"
#include <complex>
int plot_complex_init(plot_complex_t *h) {
*h = (void*) new Complexplot();
return (*h != NULL)?0:-1;
}
void plot_complex_setTitle(plot_complex_t *h, char *title) {
Complexplot *plot = static_cast<Complexplot*>(*h);
plot->setTitle(title);
}
void plot_complex_setNewData(plot_complex_t *h, _Complex float *data,
int num_points) {
Complexplot *plot = static_cast<Complexplot*>(*h);
plot->setNewData(reinterpret_cast<std::complex<float>*> (data), num_points);
}
void plot_complex_setXAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on) {
Complexplot *plot = static_cast<Complexplot*>(*h);
plot->setXAxisAutoScale(static_cast<Complexplot::PlotId> (id), on);
}
void plot_complex_setYAxisAutoScale(plot_complex_t *h, plot_complex_id_t id, bool on) {
Complexplot *plot = static_cast<Complexplot*>(*h);
plot->setYAxisAutoScale(static_cast<Complexplot::PlotId> (id), on);
}
void plot_complex_setXAxisScale(plot_complex_t *h, plot_complex_id_t id, double xMin, double xMax) {
Complexplot *plot = static_cast<Complexplot*>(*h);
plot->setXAxisScale(static_cast<Complexplot::PlotId> (id), xMin, xMax);
}
void plot_complex_setYAxisScale(plot_complex_t *h, plot_complex_id_t id, double yMin, double yMax) {
Complexplot *plot = static_cast<Complexplot*>(*h);
plot->setYAxisScale(static_cast<Complexplot::PlotId> (id), yMin, yMax);
}
void plot_complex_setXAxisRange(plot_complex_t *h, double xMin, double xMax) {
Complexplot *plot = static_cast<Complexplot*>(*h);
plot->setXAxisRange(xMin, xMax);
}

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#
# Copyright 2012-2013 The Iris Project Developers. See the
# COPYRIGHT file at the top-level directory of this distribution
# and at http://www.softwareradiosystems.com/iris/copyright.html.
#
# This file is part of the Iris Project.
#
# Iris is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# Iris is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Build tests
########################################################################
#turn the test cpp file into an executable with an int main() function
INCLUDE_DIRECTORIES(..)
ADD_EXECUTABLE(complexplot_test complexplot_test.cpp)
TARGET_LINK_LIBRARIES(complexplot_test pthread graphics)
ADD_TEST(complexplot_test complexplot_test)

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/**
* \file lib/generic/modulation/Crc_test.cpp
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Main test file for Complexplot class.
*/
#include "Complexplot.h"
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <qapplication.h>
#include <cstdlib>
#include <complex>
#include <vector>
#define PI 3.14159265358979323846
using namespace std;
typedef vector<complex<float> > FloatVec;
void *threadMain1(void *arg) {
Complexplot plot;
plot.setTitle("Float");
plot.setXAxisRange(0, 2);
plot.setYAxisScale(Complexplot::Magnitude, 0.9, 1.1);
int n = 1024;
float step = 2.0 * PI / n;
complex<float>* data = new complex<float> [n];
for (int i = 0; i < n; i++)
data[i] = polar(1.0f, step * i);
plot.setNewData(data, n);
for (int i = 0; i < n; i++) {
rotate(data, data + 1, data + n);
plot.setNewData(data, n);
usleep(1000);
}
return NULL;
}
void *threadMain2(void *arg) {
Complexplot plot;
plot.setTitle("Double");
plot.setXAxisRange(0, 2);
plot.setYAxisScale(Complexplot::Magnitude, 0.9, 1.1);
int n = 1024;
double step = 2.0 * PI / n;
complex<double>* data = new complex<double> [n];
for (int i = 0; i < n; i++)
data[i] = polar(1.0, step * i);
plot.setNewData(data, n);
for (int i = 0; i < n; i++) {
rotate(data, data + 1, data + n);
plot.setNewData(data, n);
usleep(1000);
}
return NULL;
}
void *threadMain3(void *arg) {
Complexplot plot;
plot.setTitle("FloatVec");
plot.setXAxisRange(0, 2);
plot.setYAxisScale(Complexplot::Magnitude, 0.9, 1.1);
FloatVec data(1024);
int n = data.size();
float step = 2.0 * PI / n;
for (int i = 0; i < n; i++)
data[i] = polar(1.0f, step * i);
plot.setNewData(data.begin(), data.end());
for (int i = 0; i < n; i++) {
rotate(data.begin(), data.begin() + 1, data.end());
plot.setNewData(data.begin(), data.end());
usleep(1000);
}
return NULL;
}
int main(int argc, char *argv[]) {
int argc2 = 1;
char* argv2[] = { const_cast<char *>("Compleplot_Basic_Test"), NULL };
QApplication a(argc2, argv2);
pthread_t threads[3];
int i;
if (pthread_create(&threads[0], NULL, threadMain1, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[1], NULL, threadMain2, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[2], NULL, threadMain3, NULL)) {
perror("pthread_create");
exit(-1);
}
qApp->exec();
for (i=0;i<3;i++) {
pthread_join(threads[i], NULL);
}
exit(0);
}

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#include "RealWidget.h"
#include "Lineplot.h"
#include "Events.h"
#include <qlayout.h>
#include <algorithm>
using namespace std;
RealWidget::RealWidget(QWidget *parent)
:QWidget(parent)
{
l_ = new Lineplot();
QVBoxLayout* vLayout1 = new QVBoxLayout(this);
vLayout1->addWidget(l_);
numPoints_ = 16;
dataPoints_ = new double[numPoints_];
timerId_ = startTimer(10);
haveNewData_ = false;
}
RealWidget::~RealWidget()
{
delete l_;
}
void RealWidget::customEvent( QEvent * e )
{
if(e->type() == RealDataEvent::type)
{
RealDataEvent* dataEvent = (RealDataEvent*)e;
setData(dataEvent);
}
}
void RealWidget::timerEvent(QTimerEvent *event)
{
if(event->timerId() == timerId_)
{
if(haveNewData_)
{
l_->replot();
haveNewData_ = false;
}
return;
}
QWidget::timerEvent(event);
}
void RealWidget::setData(RealDataEvent* e)
{
if(e->numPoints_ != numPoints_)
{
numPoints_ = e->numPoints_;
delete [] dataPoints_;
dataPoints_ = new double[numPoints_];
}
for(int i=0;i<numPoints_;i++)
dataPoints_[i] = e->dataPoints_[i];
l_->setData(dataPoints_, numPoints_);
haveNewData_ = true;
}
void RealWidget::setWidgetTitle(QString title)
{
l_->setTitle(title);
}
void RealWidget::setWidgetAxisLabels(QString xLabel, QString yLabel)
{
l_->setAxisTitle(QwtPlot::xBottom, xLabel);
l_->setAxisTitle(QwtPlot::yLeft, yLabel);
}
void RealWidget::setWidgetXAxisScale(double xMin, double xMax)
{
l_->setAxisScale(QwtPlot::xBottom, xMin, xMax);
}
void RealWidget::setWidgetYAxisScale(double yMin, double yMax)
{
l_->setAxisScale(QwtPlot::yLeft, yMin, yMax);
}
void RealWidget::setWidgetXAxisAutoScale(bool on=true)
{
l_->setAxisAutoScale(QwtPlot::xBottom, on);
}
void RealWidget::setWidgetYAxisAutoScale(bool on=true)
{
l_->setAxisAutoScale(QwtPlot::yLeft, on);
}
void RealWidget::setWidgetXAxisRange(double xMin, double xMax)
{
l_->setXAxisRange(xMin, xMax);
}

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#ifndef REALWIDGET_H
#define REALWIDGET_H
#include <qapplication.h>
#include <qwidget.h>
#include <complex>
class RealDataEvent;
class Lineplot;
class RealWidget
: public QWidget
{
Q_OBJECT
public:
RealWidget(QWidget* parent = 0);
virtual ~RealWidget();
public slots:
void customEvent( QEvent * e );
void setWidgetTitle(QString title);
void setWidgetAxisLabels(QString xLabel, QString yLabel);
void setWidgetXAxisScale(double xMin, double xMax);
void setWidgetYAxisScale(double yMin, double yMax);
void setWidgetXAxisAutoScale(bool on);
void setWidgetYAxisAutoScale(bool on);
void setWidgetXAxisRange(double xMin, double xMax);
protected:
virtual void timerEvent(QTimerEvent *event);
private:
void setData(RealDataEvent* e);
Lineplot* l_; //The line plot
double* dataPoints_;
int numPoints_;
int timerId_;
bool haveNewData_;
};
#endif // REALWIDGET_H

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#include "Realplot.h"
#include "RealplotWrapper.h"
Realplot::Realplot()
{
plot_ = new RealplotWrapper;
}
Realplot::~Realplot()
{
delete plot_;
}
void Realplot::setNewData(double* data, int numPoints)
{
plot_->setNewData(data, numPoints);
}
void Realplot::setNewData(float* data, int numPoints)
{
plot_->setNewData(data, numPoints);
}
void Realplot::setTitle(std::string title)
{
plot_->setTitle(title);
}
void Realplot::setXAxisScale(double xMin, double xMax)
{
plot_->setXAxisScale(xMin, xMax);
}
void Realplot::setYAxisScale(double yMin, double yMax)
{
plot_->setYAxisScale(yMin, yMax);
}
void Realplot::setXAxisAutoScale(bool on=true)
{
plot_->setXAxisAutoScale(on);
}
void Realplot::setYAxisAutoScale(bool on=true)
{
plot_->setYAxisAutoScale(on);
}
void Realplot::setXAxisRange(double xMin, double xMax)
{
plot_->setXAxisRange(xMin, xMax);
}
void Realplot::setLabels(std::string xLabel, std::string yLabel)
{
plot_->setAxisLabels(xLabel, yLabel);
}

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#ifndef REALPLOT_H
#define REALPLOT_H
#include <string>
class RealplotWrapper;
class Realplot
{
public:
Realplot();
~Realplot();
template<class Iterator>
void setNewData(Iterator begin, Iterator end);
void setNewData(float* data, int numPoints);
void setNewData(double* data, int numPoints);
void setTitle(std::string title);
void setXAxisScale(double xMin, double xMax);
void setYAxisScale(double yMin, double yMax);
void setXAxisAutoScale(bool on);
void setYAxisAutoScale(bool on);
void setXAxisRange(double xMin, double xMax);
void setLabels(std::string xLabel, std::string yLabel);
private:
RealplotWrapper* plot_;
};
template<class Iterator>
void Realplot::setNewData(Iterator begin, Iterator end)
{
int numPoints = end-begin;
double* data = new double[numPoints];
for(int i=0;begin!=end;begin++,i++)
{
data[i] = *begin;
}
setNewData(data, numPoints);
delete[] data;
}
#endif // REALPLOT_H

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#include "RealplotWrapper.h"
#include "RealWidget.h"
#include "Events.h"
#include <qapplication.h>
#include <QThread>
RealplotWrapper::RealplotWrapper()
:widget_(NULL)
,destroyed_(true)
{
if(QCoreApplication::instance() == NULL)
return; //TODO: throw exception here in Iris
if(QCoreApplication::instance()->thread() == QThread::currentThread())
{
connect( this, SIGNAL( createWidgetSignal() ),
this, SLOT(createWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignal() ),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()) );
}
else
{
connect( this, SIGNAL( createWidgetSignal() ),
this, SLOT(createWidgetSlot()),
Qt::BlockingQueuedConnection );
connect( this, SIGNAL( destroyWidgetSignal() ),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()),
Qt::BlockingQueuedConnection );
moveToThread(QCoreApplication::instance()->thread());
}
emit createWidgetSignal();
}
RealplotWrapper::~RealplotWrapper()
{
if(destroyed_)
emit destroyWidgetSignal();
else
emit destroyWidgetSignalBlocking();
}
void RealplotWrapper::createWidgetSlot()
{
widget_ = new RealWidget;
destroyed_ = false;
widget_->setAttribute(Qt::WA_DeleteOnClose, true);
connect(widget_, SIGNAL( destroyed() ),
this, SLOT( widgetDestroyed() ));
connect(this, SIGNAL(setWidgetTitle(QString)),
widget_, SLOT(setWidgetTitle(QString)));
connect(this, SIGNAL(setWidgetAxisLabels(QString, QString)),
widget_, SLOT(setWidgetAxisLabels(QString, QString)));
connect(this, SIGNAL(setWidgetXAxisScale(double,double)),
widget_, SLOT(setWidgetXAxisScale(double,double)));
connect(this, SIGNAL(setWidgetYAxisScale(double,double)),
widget_, SLOT(setWidgetYAxisScale(double,double)));
connect(this, SIGNAL(setWidgetXAxisAutoScale(bool)),
widget_, SLOT(setWidgetXAxisAutoScale(bool)));
connect(this, SIGNAL(setWidgetYAxisAutoScale(bool)),
widget_, SLOT(setWidgetYAxisAutoScale(bool)));
connect(this, SIGNAL(setWidgetXAxisRange(double,double)),
widget_, SLOT(setWidgetXAxisRange(double,double)));
widget_->resize( 800, 600 );
widget_->show();
}
void RealplotWrapper::destroyWidgetSlot()
{
delete widget_;
}
void RealplotWrapper::widgetDestroyed()
{
destroyed_ = true;
}
void RealplotWrapper::setNewData(double* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new RealDataEvent(data, numPoints));
}
void RealplotWrapper::setNewData(float* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new RealDataEvent(data, numPoints));
}
void RealplotWrapper::setTitle(std::string title)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(title.c_str());
emit setWidgetTitle(str);
}
void RealplotWrapper::setAxisLabels(std::string xLabel, std::string yLabel)
{
if(destroyed_)
return;
QString xStr = QString::fromUtf8(xLabel.c_str());
QString yStr = QString::fromUtf8(yLabel.c_str());
emit setWidgetAxisLabels(xStr, yStr);
}
void RealplotWrapper::setXAxisScale(double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetXAxisScale(xMin, xMax);
}
void RealplotWrapper::setYAxisScale(double yMin, double yMax)
{
if(destroyed_)
return;
emit setWidgetYAxisScale(yMin, yMax);
}
void RealplotWrapper::setXAxisAutoScale(bool on=true)
{
if(destroyed_)
return;
emit setWidgetXAxisAutoScale(on);
}
void RealplotWrapper::setYAxisAutoScale(bool on=true)
{
if(destroyed_)
return;
emit setWidgetYAxisAutoScale(on);
}
void RealplotWrapper::setXAxisRange(double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetXAxisRange(xMin, xMax);
}

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#ifndef REALPLOTWRAPPER_H
#define REALPLOTWRAPPER_H
#include <qapplication.h>
class RealWidget;
class RealplotWrapper
: QObject
{
Q_OBJECT
public:
RealplotWrapper();
~RealplotWrapper();
void setNewData(float* data, int numPoints);
void setNewData(double* data, int numPoints);
void setTitle(std::string title);
void setAxisLabels(std::string xLabel, std::string yLabel);
void setXAxisScale(double xMin, double xMax);
void setYAxisScale(double yMin, double yMax);
void setXAxisAutoScale(bool on);
void setYAxisAutoScale(bool on);
void setXAxisRange(double xMin, double xMax);
public slots:
void createWidgetSlot();
void destroyWidgetSlot();
void widgetDestroyed();
signals:
void createWidgetSignal();
void destroyWidgetSignal();
void destroyWidgetSignalBlocking();
void setWidgetTitle(QString title);
void setWidgetAxisLabels(QString xLabel, QString yLabel);
void setWidgetXAxisScale(double xMin, double xMax);
void setWidgetYAxisScale(double yMin, double yMax);
void setWidgetXAxisAutoScale(bool on);
void setWidgetYAxisAutoScale(bool on);
void setWidgetXAxisRange(double xMin, double xMax);
private:
RealWidget* widget_;
bool destroyed_;
};
#endif // REALPLOTWRAPPER_H

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include "plot/plot_real.h"
#include "Realplot.h"
#include <complex.h>
int plot_real_init(plot_real_t *h) {
*h = (void*) new Realplot();
return (*h != NULL)?0:-1;
}
void plot_real_setTitle(plot_real_t *h, char *title) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setTitle(title);
}
void plot_real_setNewData(plot_real_t *h, float *data,
int num_points) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setNewData(data, num_points);
}
void plot_real_setXAxisAutoScale(plot_real_t *h, bool on) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setXAxisAutoScale(on);
}
void plot_real_setYAxisAutoScale(plot_real_t *h, bool on) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setYAxisAutoScale(on);
}
void plot_real_setXAxisScale(plot_real_t *h, double xMin, double xMax) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setXAxisScale(xMin, xMax);
}
void plot_real_setYAxisScale(plot_real_t *h, double yMin, double yMax) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setYAxisScale(yMin, yMax);
}
void plot_real_setXAxisRange(plot_real_t *h, double xMin, double xMax) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setXAxisRange(xMin, xMax);
}
void plot_real_setLabels(plot_real_t *h, char *xLabel, char *yLabel) {
Realplot *plot = static_cast<Realplot*>(*h);
plot->setLabels(xLabel, yLabel);
}

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#
# Copyright 2012-2013 The Iris Project Developers. See the
# COPYRIGHT file at the top-level directory of this distribution
# and at http://www.softwareradiosystems.com/iris/copyright.html.
#
# This file is part of the Iris Project.
#
# Iris is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# Iris is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Build tests
########################################################################
#turn the test cpp file into an executable with an int main() function
INCLUDE_DIRECTORIES(..)
ADD_EXECUTABLE(realplot_test realplot_test.cpp)
TARGET_LINK_LIBRARIES(realplot_test pthread graphics)
ADD_TEST(realplot_test realplot_test)

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/**
* \file lib/generic/modulation/Crc_test.cpp
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Main test file for Realplot class.
*/
#include "Realplot.h"
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <qapplication.h>
#include <cstdlib>
#include <complex>
#include <vector>
typedef std::vector<float> FloatVec;
template<class T>
void getPoints(T* data, int numPoints) {
for (int i = 0; i < numPoints; i++) {
data[i] = 10 * ((T) rand() / RAND_MAX);
}
}
template<class Iterator>
void getPoints(Iterator begin, Iterator end) {
for (; begin != end; begin++) {
*begin = 10 * ((double) rand() / RAND_MAX);
}
}
void *threadMain1(void *arg) {
Realplot plot;
float data[1024];
for (int i = 0; i < 100; i++) {
getPoints(data, 504);
plot.setNewData(data, 504);
usleep(5000);
}
return NULL;
}
void *threadMain2(void *arg) {
Realplot plot;
double data[1024];
for (int i = 0; i < 100; i++) {
getPoints(data, 504);
plot.setNewData(data, 504);
usleep(5000);
}
return NULL;
}
void *threadMain3(void *arg) {
Realplot plot;
FloatVec v(1024);
for (int i = 0; i < 100; i++) {
getPoints(v.begin(), v.end());
plot.setNewData(v.begin(), v.end());
usleep(5000);
}
return NULL;
}
int main(int argc, char *argv[]) {
int argc2 = 1;
char* argv2[] = { const_cast<char *>("Realplot_Basic_Test"), NULL };
QApplication a(argc2, argv2);
pthread_t threads[3];
int i;
if (pthread_create(&threads[0], NULL, threadMain1, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[1], NULL, threadMain2, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[2], NULL, threadMain3, NULL)) {
perror("pthread_create");
exit(-1);
}
qApp->exec();
for (i=0;i<3;i++) {
pthread_join(threads[i], NULL);
}
exit(0);
}

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#include "ScatterWidget.h"
#include "Pointplot.h"
#include "Events.h"
#include <qlayout.h>
#include <algorithm>
using namespace std;
ScatterWidget::ScatterWidget(QWidget *parent)
:QWidget(parent)
{
plot_ = new Pointplot();
QVBoxLayout* vLayout1 = new QVBoxLayout(this);
vLayout1->addWidget(plot_);
numPoints_ = 16;
iData_ = new double[numPoints_];
qData_ = new double[numPoints_];
timerId_ = startTimer(10);
haveNewData_ = false;
}
ScatterWidget::~ScatterWidget()
{
delete iData_;
delete qData_;
}
void ScatterWidget::customEvent( QEvent * e )
{
if(e->type() == ComplexDataEvent::type)
{
ComplexDataEvent* dataEvent = (ComplexDataEvent*)e;
setData(dataEvent);
}
}
void ScatterWidget::timerEvent(QTimerEvent *event)
{
if(event->timerId() == timerId_)
{
if(haveNewData_)
{
plot_->replot();
haveNewData_ = false;
}
return;
}
QWidget::timerEvent(event);
}
void ScatterWidget::setData(ComplexDataEvent* e)
{
if(e->numPoints_ != numPoints_)
{
numPoints_ = e->numPoints_;
delete [] iData_;
delete [] qData_;
iData_ = new double[numPoints_];
qData_ = new double[numPoints_];
}
transform(e->dataPoints_, &e->dataPoints_[numPoints_], iData_, opReal());
transform(e->dataPoints_, &e->dataPoints_[numPoints_], qData_, opImag());
plot_->setData(iData_, qData_, numPoints_);
haveNewData_ = true;
}
void ScatterWidget::setWidgetTitle(QString title)
{
plot_->setTitle(title);
}
void ScatterWidget::setWidgetAxisLabels(QString xLabel, QString yLabel)
{
plot_->setAxisTitle(QwtPlot::xBottom, xLabel);
plot_->setAxisTitle(QwtPlot::yLeft, yLabel);
}
void ScatterWidget::setWidgetXAxisScale(double xMin, double xMax)
{
plot_->setAxisScale(QwtPlot::xBottom, xMin, xMax);
}
void ScatterWidget::setWidgetYAxisScale(double yMin, double yMax)
{
plot_->setAxisScale(QwtPlot::yLeft, yMin, yMax);
}
void ScatterWidget::setWidgetXAxisAutoScale(bool on=true)
{
plot_->setAxisAutoScale(QwtPlot::xBottom, on);
}
void ScatterWidget::setWidgetYAxisAutoScale(bool on)
{
plot_->setAxisAutoScale(QwtPlot::yLeft, on);
}

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#ifndef SCATTERWIDGET_H
#define SCATTERWIDGET_H
#include <qapplication.h>
#include <qwidget.h>
#include <complex>
class ComplexDataEvent;
class Pointplot;
class ScatterWidget
: public QWidget
{
Q_OBJECT
public:
ScatterWidget(QWidget* parent = 0);
virtual ~ScatterWidget();
public slots:
void customEvent( QEvent * e );
void setWidgetTitle(QString title);
void setWidgetAxisLabels(QString xLabel, QString yLabel);
void setWidgetXAxisScale(double xMin, double xMax);
void setWidgetYAxisScale(double yMin, double yMax);
void setWidgetXAxisAutoScale(bool on);
void setWidgetYAxisAutoScale(bool on);
protected:
virtual void timerEvent(QTimerEvent *event);
private:
void setData(ComplexDataEvent* e);
Pointplot* plot_;
struct opReal{double operator()(std::complex<double> i) const{return real(i);}};
struct opImag{double operator()(std::complex<double> i) const{return imag(i);}};
double* iData_;
double* qData_;
int numPoints_;
int timerId_;
bool haveNewData_;
};
#endif // SCATTERWIDGET_H

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#include "Scatterplot.h"
#include "ScatterplotWrapper.h"
Scatterplot::Scatterplot()
{
plot_ = new ScatterplotWrapper;
}
Scatterplot::~Scatterplot()
{
delete plot_;
}
void Scatterplot::setNewData(std::complex<float>* data, int numPoints)
{
plot_->setNewData(data, numPoints);
}
void Scatterplot::setNewData(std::complex<double>* data, int numPoints)
{
plot_->setNewData(data, numPoints);
}
void Scatterplot::setTitle(std::string title)
{
plot_->setTitle(title);
}
void Scatterplot::setXAxisScale(double xMin, double xMax)
{
plot_->setXAxisScale(xMin, xMax);
}
void Scatterplot::setYAxisScale(double yMin, double yMax)
{
plot_->setYAxisScale(yMin, yMax);
}
void Scatterplot::setXAxisAutoScale(bool on=true)
{
plot_->setXAxisAutoScale(on);
}
void Scatterplot::setYAxisAutoScale(bool on=true)
{
plot_->setYAxisAutoScale(on);
}
void Scatterplot::setAxisLabels(std::string xLabel, std::string yLabel)
{
plot_->setAxisLabels(xLabel, yLabel);
}

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#ifndef SCATTERPLOT_H
#define SCATTERPLOT_H
#include <string>
#include <complex>
class ScatterplotWrapper;
class Scatterplot
{
public:
Scatterplot();
~Scatterplot();
template<class Iterator>
void setNewData(Iterator begin, Iterator end);
void setNewData(std::complex<float>* data, int numPoints);
void setNewData(std::complex<double>* data, int numPoints);
void setTitle(std::string title);
void setXAxisScale(double xMin, double xMax);
void setYAxisScale(double yMin, double yMax);
void setXAxisAutoScale(bool on);
void setYAxisAutoScale(bool on);
void setAxisLabels(std::string xLabel, std::string yLabel);
private:
ScatterplotWrapper* plot_;
};
template<class Iterator>
void Scatterplot::setNewData(Iterator begin, Iterator end)
{
int numPoints = end-begin;
std::complex<double>* data = new std::complex<double>[numPoints];
for(int i=0;begin!=end;begin++,i++)
{
data[i] = *begin;
}
setNewData(data, numPoints);
delete[] data;
}
#endif // SCATTERPLOT_H

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#include "ScatterplotWrapper.h"
#include "ScatterWidget.h"
#include "Events.h"
#include <qapplication.h>
#include <QThread>
#include <complex>
using namespace std;
ScatterplotWrapper::ScatterplotWrapper()
:widget_(NULL)
,destroyed_(true)
{
if(QCoreApplication::instance() == NULL)
return; //TODO: throw exception here in Iris
if(QCoreApplication::instance()->thread() == QThread::currentThread())
{
connect( this, SIGNAL(createWidgetSignal()),
this, SLOT(createWidgetSlot()) );
connect( this, SIGNAL(destroyWidgetSignal()),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()) );
}
else
{
connect( this, SIGNAL(createWidgetSignal()),
this, SLOT(createWidgetSlot()),
Qt::BlockingQueuedConnection );
connect( this, SIGNAL(destroyWidgetSignal()),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()),
Qt::BlockingQueuedConnection );
moveToThread(QCoreApplication::instance()->thread());
}
emit createWidgetSignal();
}
ScatterplotWrapper::~ScatterplotWrapper()
{
if(destroyed_)
emit destroyWidgetSignal();
else
emit destroyWidgetSignalBlocking();
}
void ScatterplotWrapper::createWidgetSlot()
{
widget_ = new ScatterWidget;
destroyed_ = false;
widget_->setAttribute(Qt::WA_DeleteOnClose, true);
connect(widget_, SIGNAL( destroyed() ),
this, SLOT( widgetDestroyed() ));
connect(this, SIGNAL(setWidgetXAxisScale(double,double)),
widget_, SLOT(setWidgetXAxisScale(double,double)));
connect(this, SIGNAL(setWidgetYAxisScale(double,double)),
widget_, SLOT(setWidgetYAxisScale(double,double)));
connect(this, SIGNAL(setWidgetXAxisAutoScale(bool)),
widget_, SLOT(setWidgetXAxisAutoScale(bool)));
connect(this, SIGNAL(setWidgetYAxisAutoScale(bool)),
widget_, SLOT(setWidgetYAxisAutoScale(bool)));
connect(this, SIGNAL(setWidgetTitle(QString)),
widget_, SLOT(setWidgetTitle(QString)));
connect(this, SIGNAL(setWidgetAxisLabels(QString, QString)),
widget_, SLOT(setWidgetAxisLabels(QString, QString)));
widget_->resize( 800, 600 );
widget_->show();
}
void ScatterplotWrapper::destroyWidgetSlot()
{
delete widget_;
}
void ScatterplotWrapper::widgetDestroyed()
{
destroyed_ = true;
}
void ScatterplotWrapper::setNewData(complex<double>* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new ComplexDataEvent(data, numPoints));
}
void ScatterplotWrapper::setNewData(complex<float>* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new ComplexDataEvent(data, numPoints));
}
void ScatterplotWrapper::setTitle(std::string title)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(title.c_str());
emit setWidgetTitle(str);
}
void ScatterplotWrapper::setXAxisScale(double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetXAxisScale(xMin, xMax);
}
void ScatterplotWrapper::setYAxisScale(double yMin, double yMax)
{
if(destroyed_)
return;
emit setWidgetYAxisScale(yMin, yMax);
}
void ScatterplotWrapper::setXAxisAutoScale(bool on=true)
{
if(destroyed_)
return;
emit setWidgetXAxisAutoScale(on);
}
void ScatterplotWrapper::setYAxisAutoScale(bool on=true)
{
if(destroyed_)
return;
emit setWidgetYAxisAutoScale(on);
}
void ScatterplotWrapper::setAxisLabels(std::string xLabel, std::string yLabel)
{
if(destroyed_)
return;
QString xStr = QString::fromUtf8(xLabel.c_str());
QString yStr = QString::fromUtf8(yLabel.c_str());
emit setWidgetAxisLabels(xStr, yStr);
}

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#ifndef SCATTERPLOTWRAPPER_H
#define SCATTERPLOTWRAPPER_H
#include <qapplication.h>
#include <complex>
class ScatterWidget;
class ScatterplotWrapper
: QObject
{
Q_OBJECT
public:
ScatterplotWrapper();
~ScatterplotWrapper();
void setNewData(std::complex<float>* data, int numPoints);
void setNewData(std::complex<double>* data, int numPoints);
void setTitle(std::string title);
void setXAxisScale(double xMin, double xMax);
void setYAxisScale(double yMin, double yMax);
void setXAxisAutoScale(bool on);
void setYAxisAutoScale(bool on);
void setAxisLabels(std::string xLabel, std::string yLabel);
public slots:
void createWidgetSlot();
void destroyWidgetSlot();
void widgetDestroyed();
signals:
void createWidgetSignal();
void destroyWidgetSignal();
void destroyWidgetSignalBlocking();
void setWidgetTitle(QString title);
void setWidgetAxisLabels(QString xLabel, QString yLabel);
void setWidgetXAxisScale(double xMin, double xMax);
void setWidgetYAxisScale(double yMin, double yMax);
void setWidgetXAxisAutoScale(bool on);
void setWidgetYAxisAutoScale(bool on);
private:
ScatterWidget* widget_;
bool destroyed_;
};
#endif // SCATTERPLOTWRAPPER_H

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include "plot/plot_scatter.h"
#include "Scatterplot.h"
#include <complex>
int plot_scatter_init(plot_scatter_t *h) {
*h = (void*) new Scatterplot();
return (*h != NULL)?0:-1;
}
void plot_scatter_setTitle(plot_scatter_t *h, char *title) {
Scatterplot *plot = static_cast<Scatterplot*>(*h);
plot->setTitle(title);
}
void plot_scatter_setNewData(plot_scatter_t *h, _Complex float *data,
int num_points) {
Scatterplot *plot = static_cast<Scatterplot*>(*h);
plot->setNewData(reinterpret_cast<std::complex<float>*> (data), num_points);
}
void plot_scatter_setXAxisAutoScale(plot_scatter_t *h, bool on) {
Scatterplot *plot = static_cast<Scatterplot*>(*h);
plot->setXAxisAutoScale(on);
}
void plot_scatter_setYAxisAutoScale(plot_scatter_t *h, bool on) {
Scatterplot *plot = static_cast<Scatterplot*>(*h);
plot->setYAxisAutoScale(on);
}
void plot_scatter_setXAxisScale(plot_scatter_t *h, double xMin, double xMax) {
Scatterplot *plot = static_cast<Scatterplot*>(*h);
plot->setXAxisScale(xMin, xMax);
}
void plot_scatter_setYAxisScale(plot_scatter_t *h, double yMin, double yMax) {
Scatterplot *plot = static_cast<Scatterplot*>(*h);
plot->setYAxisScale(yMin, yMax);
}
void plot_scatter_setAxisLabels(plot_scatter_t *h, char *xLabel, char *yLabel) {
Scatterplot *plot = static_cast<Scatterplot*>(*h);
plot->setAxisLabels(xLabel, yLabel);
}

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#
# Copyright 2012-2013 The Iris Project Developers. See the
# COPYRIGHT file at the top-level directory of this distribution
# and at http://www.softwareradiosystems.com/iris/copyright.html.
#
# This file is part of the Iris Project.
#
# Iris is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# Iris is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Build tests
########################################################################
INCLUDE_DIRECTORIES(..)
ADD_EXECUTABLE(scatterplot_test scatterplot_test.cpp)
TARGET_LINK_LIBRARIES(scatterplot_test pthread graphics)
ADD_TEST(scatterplot_test scatterplot_test)

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/**
* \file lib/generic/modulation/Crc_test.cpp
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Main test file for scatterplot class.
*/
#include "Scatterplot.h"
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <qapplication.h>
#include <cstdlib>
#include <complex>
#include <vector>
typedef std::complex<float> Cplx;
typedef std::vector<Cplx> CplxVec;
template<class T>
void getPoints(std::complex<T>* data, int numPoints) {
for (int i = 0; i < numPoints; i++) {
data[i] = std::complex<T>(2 * ((T) rand() / RAND_MAX) - 1,
2 * ((T) rand() / RAND_MAX) - 1);
}
}
template<class Iterator>
void getPoints(Iterator begin, Iterator end) {
for (; begin != end; begin++) {
float r = 2 * ((double) rand() / RAND_MAX) - 1;
float i = 2 * ((double) rand() / RAND_MAX) - 1;
*begin = Cplx(r, i);
}
}
void *threadMain1(void *arg) {
Scatterplot plot;
std::complex<float> data[1024];
for (int i = 0; i < 10; i++) {
getPoints(data, 1024);
plot.setNewData(data, 1024);
usleep(100000);
}
return NULL;
}
void *threadMain2(void *arg) {
Scatterplot plot;
std::complex<double> data[1024];
for (int i = 0; i < 10; i++) {
getPoints(data, 1024);
plot.setNewData(data, 1024);
usleep(100000);
}
return NULL;
}
void *threadMain3(void *arg) {
Scatterplot plot;
CplxVec v(1024);
for (int i = 0; i < 10; i++) {
getPoints(v.begin(), v.end());
plot.setNewData(v.begin(), v.end());
usleep(100000);
}
return NULL;
}
int main(int argc, char *argv[]) {
int argc2 = 1;
char* argv2[] = { const_cast<char *>("Scatterplot_Basic_Test"), NULL };
QApplication a(argc2, argv2);
pthread_t threads[3];
int i;
if (pthread_create(&threads[0], NULL, threadMain1, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[1], NULL, threadMain2, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[2], NULL, threadMain3, NULL)) {
perror("pthread_create");
exit(-1);
}
qApp->exec();
for (i=0;i<3;i++) {
pthread_join(threads[i], NULL);
}
exit(0);
}

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#include "WaterfallWidget.h"
#include "Spectrogramplot.h"
#include "Lineplot.h"
#include "Events.h"
#include <qlayout.h>
#include <qpushbutton.h>
#include <algorithm>
using namespace std;
WaterfallWidget::WaterfallWidget(int numDataPoints, int numRows, QWidget *parent)
:QWidget(parent)
{
p_ = new Lineplot();
s_ = new Spectrogramplot(numDataPoints, numRows);
b_ = new QPushButton("Autoscale");
connect(b_, SIGNAL(clicked()), this, SLOT(autoscale()));
QVBoxLayout* vLayout1 = new QVBoxLayout(this);
vLayout1->addWidget(p_);vLayout1->setStretch(0,1);
vLayout1->addWidget(s_);vLayout1->setStretch(1,3);
vLayout1->addWidget(b_);
numPoints_ = numDataPoints;
data_ = new double[numPoints_];
timerId_ = startTimer(10);
haveNewData_ = false;
}
WaterfallWidget::~WaterfallWidget()
{
delete p_;
delete s_;
}
void WaterfallWidget::customEvent( QEvent * e )
{
if(e->type() == RealDataEvent::type)
{
RealDataEvent* dataEvent = (RealDataEvent*)e;
appendData(dataEvent);
}
}
void WaterfallWidget::setWidgetTitle(QString title)
{
setWindowTitle(title);
}
void WaterfallWidget::setPlotXLabel(QString xLabel)
{
p_->setAxisTitle(QwtPlot::xBottom, xLabel);
}
void WaterfallWidget::setPlotYLabel(QString yLabel)
{
p_->setAxisTitle(QwtPlot::yLeft, yLabel);
}
void WaterfallWidget::setPlotXAxisRange(double xMin, double xMax)
{
p_->setXAxisRange(xMin, xMax);
}
void WaterfallWidget::setPlotXAxisScale(double xMin, double xMax)
{
p_->setAxisScale(QwtPlot::xBottom, xMin, xMax);
}
void WaterfallWidget::setPlotYAxisScale(double yMin, double yMax)
{
p_->setAxisScale(QwtPlot::yLeft, yMin, yMax);
}
void WaterfallWidget::setSpectrogramXLabel(QString xLabel)
{
s_->setAxisTitle(QwtPlot::xBottom, xLabel);
}
void WaterfallWidget::setSpectrogramYLabel(QString yLabel)
{
s_->setAxisTitle(QwtPlot::yLeft, yLabel);
}
void WaterfallWidget::setSpectrogramXAxisRange(double xMin, double xMax)
{
s_->setXAxisRange(xMin, xMax);
}
void WaterfallWidget::setSpectrogramYAxisRange(double yMin, double yMax)
{
s_->setYAxisRange(yMin, yMax);
}
void WaterfallWidget::setSpectrogramZAxisScale(double zMin, double zMax)
{
s_->setZAxisScale(zMin, zMax);
}
void WaterfallWidget::autoscale()
{
double min = s_->min();
double max = s_->max();
s_->setZAxisScale(min, max);
p_->setAxisAutoScale(QwtPlot::yLeft, false);
p_->setAxisScale(QwtPlot::yLeft, min, max);
}
void WaterfallWidget::timerEvent(QTimerEvent *event)
{
if(event->timerId() == timerId_)
{
if(haveNewData_)
{
p_->replot();
s_->replot();
haveNewData_ = false;
}
return;
}
QWidget::timerEvent(event);
}
void WaterfallWidget::appendData(RealDataEvent* e)
{
if(e->numPoints_ != numPoints_)
{
numPoints_ = e->numPoints_;
delete [] data_;
data_ = new double[numPoints_];
}
memcpy(data_, e->dataPoints_, numPoints_*sizeof(double));
p_->setData(data_, numPoints_);
s_->appendData(data_, numPoints_);
haveNewData_ = true;
}

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#ifndef WATERFALLWIDGET_H
#define WATERFALLWIDGET_H
#include <qapplication.h>
#include <qwidget.h>
#include <complex>
class RealDataEvent;
class Lineplot;
class Spectrogramplot;
class QPushButton;
class WaterfallWidget
: public QWidget
{
Q_OBJECT
public:
WaterfallWidget(int numDataPoints, int numRows, QWidget* parent = 0);
virtual ~WaterfallWidget();
public slots:
void customEvent( QEvent * e );
void setWidgetTitle(QString title);
void setPlotXLabel(QString xLabel);
void setPlotYLabel(QString yLabel);
void setPlotXAxisRange(double xMin, double xMax);
void setPlotXAxisScale(double xMin, double xMax);
void setPlotYAxisScale(double yMin, double yMax);
void setSpectrogramXLabel(QString xLabel);
void setSpectrogramYLabel(QString yLabel);
void setSpectrogramXAxisRange(double xMin, double xMax);
void setSpectrogramYAxisRange(double yMin, double yMax);
void setSpectrogramZAxisScale(double zMin, double zMax);
void autoscale();
protected:
virtual void timerEvent(QTimerEvent *event);
private:
void appendData(RealDataEvent* e);
Lineplot* p_;
Spectrogramplot* s_;
QPushButton* b_;
double* data_;
int numPoints_;
int timerId_;
bool haveNewData_;
};
#endif // WATERFALLWIDGET_H

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#include "Waterfallplot.h"
#include "WaterfallplotWrapper.h"
using namespace std;
Waterfallplot::Waterfallplot(int numDataPoints, int numRows)
{
plot_ = new WaterfallplotWrapper(numDataPoints, numRows);
}
Waterfallplot::~Waterfallplot()
{
delete plot_;
}
void Waterfallplot::appendNewData(float* data, int numPoints)
{
plot_->appendNewData(data, numPoints);
}
void Waterfallplot::appendNewData(double* data, int numPoints)
{
plot_->appendNewData(data, numPoints);
}
void Waterfallplot::setTitle(std::string title)
{
plot_->setTitle(title);
}
void Waterfallplot::setPlotXLabel(std::string xLabel)
{
plot_->setPlotXLabel(xLabel);
}
void Waterfallplot::setPlotYLabel(std::string yLabel)
{
plot_->setPlotYLabel(yLabel);
}
void Waterfallplot::setPlotXAxisRange(double xMin, double xMax)
{
plot_->setPlotXAxisRange(xMin, xMax);
}
void Waterfallplot::setPlotXAxisScale(double xMin, double xMax)
{
plot_->setPlotXAxisScale(xMin, xMax);
}
void Waterfallplot::setPlotYAxisScale(double yMin, double yMax)
{
plot_->setPlotYAxisScale(yMin, yMax);
}
void Waterfallplot::setSpectrogramXLabel(std::string xLabel)
{
plot_->setSpectrogramXLabel(xLabel);
}
void Waterfallplot::setSpectrogramYLabel(std::string yLabel)
{
plot_->setSpectrogramYLabel(yLabel);
}
void Waterfallplot::setSpectrogramXAxisRange(double xMin, double xMax)
{
plot_->setSpectrogramXAxisRange(xMin, xMax);
}
void Waterfallplot::setSpectrogramYAxisRange(double yMin, double yMax)
{
plot_->setSpectrogramYAxisRange(yMin, yMax);
}
void Waterfallplot::setSpectrogramZAxisScale(double zMin, double zMax)
{
plot_->setSpectrogramZAxisScale(zMin, zMax);
}

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#ifndef WATERFALLPLOT_H
#define WATERFALLPLOT_H
#include <string>
class WaterfallplotWrapper;
class Waterfallplot
{
public:
Waterfallplot(int numDataPoints, int numRows);
~Waterfallplot();
template<class Iterator>
void appendNewData(Iterator begin, Iterator end);
void appendNewData(float* data, int numPoints);
void appendNewData(double* data, int numPoints);
void setTitle(std::string title);
void setPlotXLabel(std::string xLabel);
void setPlotYLabel(std::string yLabel);
void setPlotXAxisRange(double xMin, double xMax);
void setPlotXAxisScale(double xMin, double xMax);
void setPlotYAxisScale(double yMin, double yMax);
void setSpectrogramXLabel(std::string xLabel);
void setSpectrogramYLabel(std::string yLabel);
void setSpectrogramXAxisRange(double xMin, double xMax);
void setSpectrogramYAxisRange(double yMin, double yMax);
void setSpectrogramZAxisScale(double zMin, double zMax);
private:
WaterfallplotWrapper* plot_;
};
template<class Iterator>
void Waterfallplot::appendNewData(Iterator begin, Iterator end)
{
int numPoints = end-begin;
double* data = new double[numPoints];
for(int i=0;begin!=end;begin++,i++)
{
data[i] = *begin;
}
appendNewData(data, numPoints);
delete[] data;
}
#endif // WATERFALLPLOT_H

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#include "WaterfallplotWrapper.h"
#include "WaterfallWidget.h"
#include "Events.h"
#include <qapplication.h>
#include <QThread>
using namespace std;
WaterfallplotWrapper::WaterfallplotWrapper(int numDataPoints, int numRows)
:widget_(NULL)
,destroyed_(true)
{
if(QCoreApplication::instance() == NULL)
return; //TODO: throw exception here in Iris
if(QCoreApplication::instance()->thread() == QThread::currentThread())
{
connect( this, SIGNAL( createWidgetSignal(int, int) ),
this, SLOT(createWidgetSlot(int, int)) );
connect( this, SIGNAL( destroyWidgetSignal() ),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()) );
}
else
{
connect( this, SIGNAL( createWidgetSignal(int, int) ),
this, SLOT(createWidgetSlot(int, int)),
Qt::BlockingQueuedConnection );
connect( this, SIGNAL( destroyWidgetSignal() ),
this, SLOT(destroyWidgetSlot()) );
connect( this, SIGNAL( destroyWidgetSignalBlocking() ),
this, SLOT(destroyWidgetSlot()),
Qt::BlockingQueuedConnection );
moveToThread(QCoreApplication::instance()->thread());
}
emit createWidgetSignal(numDataPoints, numRows);
}
WaterfallplotWrapper::~WaterfallplotWrapper()
{
if(destroyed_)
emit destroyWidgetSignal();
else
emit destroyWidgetSignalBlocking();
}
void WaterfallplotWrapper::createWidgetSlot(int numDataPoints, int numRows)
{
widget_ = new WaterfallWidget(numDataPoints, numRows);
destroyed_ = false;
widget_->setAttribute(Qt::WA_DeleteOnClose, true);
connect(widget_, SIGNAL( destroyed() ),
this, SLOT( widgetDestroyed() ));
connect(this, SIGNAL(setWidgetTitle(QString)),
widget_, SLOT(setWidgetTitle(QString)));
connect(this, SIGNAL(setWidgetPXLabel(QString)),
widget_, SLOT(setPlotXLabel(QString)));
connect(this, SIGNAL(setWidgetPYLabel(QString)),
widget_, SLOT(setPlotYLabel(QString)));
connect(this, SIGNAL(setWidgetPXAxisRange(double, double)),
widget_, SLOT(setPlotXAxisRange(double, double)));
connect(this, SIGNAL(setWidgetPXAxisScale(double, double)),
widget_, SLOT(setPlotXAxisScale(double, double)));
connect(this, SIGNAL(setWidgetPYAxisScale(double, double)),
widget_, SLOT(setPlotYAxisScale(double, double)));
connect(this, SIGNAL(setWidgetSXLabel(QString)),
widget_, SLOT(setSpectrogramXLabel(QString)));
connect(this, SIGNAL(setWidgetSYLabel(QString)),
widget_, SLOT(setSpectrogramYLabel(QString)));
connect(this, SIGNAL(setWidgetSXAxisRange(double, double)),
widget_, SLOT(setSpectrogramXAxisRange(double, double)));
connect(this, SIGNAL(setWidgetSYAxisRange(double, double)),
widget_, SLOT(setSpectrogramYAxisRange(double, double)));
connect(this, SIGNAL(setWidgetSZAxisScale(double, double)),
widget_, SLOT(setSpectrogramZAxisScale(double, double)));
widget_->resize( 800, 600 );
widget_->show();
}
void WaterfallplotWrapper::destroyWidgetSlot()
{
delete widget_;
}
void WaterfallplotWrapper::widgetDestroyed()
{
destroyed_ = true;
}
void WaterfallplotWrapper::appendNewData(float* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new RealDataEvent(data, numPoints));
}
void WaterfallplotWrapper::appendNewData(double* data, int numPoints)
{
if(destroyed_)
return;
qApp->postEvent(widget_, new RealDataEvent(data, numPoints));
}
void WaterfallplotWrapper::setTitle(std::string title)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(title.c_str());
emit setWidgetTitle(str);
}
void WaterfallplotWrapper::setPlotXLabel(std::string xLabel)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(xLabel.c_str());
emit setWidgetPXLabel(str);
}
void WaterfallplotWrapper::setPlotYLabel(std::string yLabel)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(yLabel.c_str());
emit setWidgetPYLabel(str);
}
void WaterfallplotWrapper::setPlotXAxisRange(double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetPXAxisRange(xMin, xMax);
}
void WaterfallplotWrapper::setPlotXAxisScale(double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetPXAxisScale(xMin, xMax);
}
void WaterfallplotWrapper::setPlotYAxisScale(double yMin, double yMax)
{
if(destroyed_)
return;
emit setWidgetPYAxisScale(yMin, yMax);
}
void WaterfallplotWrapper::setSpectrogramXAxisRange(double xMin, double xMax)
{
if(destroyed_)
return;
emit setWidgetSXAxisRange(xMin, xMax);
}
void WaterfallplotWrapper::setSpectrogramXLabel(std::string xLabel)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(xLabel.c_str());
emit setWidgetSXLabel(str);
}
void WaterfallplotWrapper::setSpectrogramYLabel(std::string yLabel)
{
if(destroyed_)
return;
QString str = QString::fromUtf8(yLabel.c_str());
emit setWidgetSYLabel(str);
}
void WaterfallplotWrapper::setSpectrogramYAxisRange(double yMin, double yMax)
{
if(destroyed_)
return;
emit setWidgetSYAxisRange(yMin, yMax);
}
void WaterfallplotWrapper::setSpectrogramZAxisScale(double zMin, double zMax)
{
if(destroyed_)
return;
emit setWidgetSZAxisScale(zMin, zMax);
}

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#ifndef WATERFALLPLOTWRAPPER_H
#define WATERFALLPLOTWRAPPER_H
#include <qapplication.h>
class WaterfallWidget;
class WaterfallplotWrapper
: QObject
{
Q_OBJECT
public:
WaterfallplotWrapper(int numDataPoints, int numRows);
~WaterfallplotWrapper();
void appendNewData(float* data, int numPoints);
void appendNewData(double* data, int numPoints);
void setTitle(std::string title);
void setPlotXLabel(std::string xLabel);
void setPlotYLabel(std::string yLabel);
void setPlotXAxisRange(double xMin, double xMax);
void setPlotXAxisScale(double xMin, double xMax);
void setPlotYAxisScale(double yMin, double yMax);
void setSpectrogramXLabel(std::string xLabel);
void setSpectrogramYLabel(std::string yLabel);
void setSpectrogramXAxisRange(double xMin, double xMax);
void setSpectrogramYAxisRange(double yMin, double yMax);
void setSpectrogramZAxisScale(double zMin, double zMax);
public slots:
void createWidgetSlot(int numDataPoints, int numRows);
void destroyWidgetSlot();
void widgetDestroyed();
signals:
void createWidgetSignal(int numDataPoints, int numRows);
void destroyWidgetSignal();
void destroyWidgetSignalBlocking();
void setWidgetTitle(QString title);
void setWidgetPXLabel(QString xLabel);
void setWidgetPYLabel(QString yLabel);
void setWidgetPXAxisRange(double xMin, double xMax);
void setWidgetPXAxisScale(double xMin, double xMax);
void setWidgetPYAxisScale(double yMin, double yMax);
void setWidgetSXLabel(QString xLabel);
void setWidgetSYLabel(QString yLabel);
void setWidgetSXAxisRange(double xMin, double xMax);
void setWidgetSYAxisRange(double yMin, double yMax);
void setWidgetSZAxisScale(double zMin, double zMax);
private:
WaterfallWidget* widget_;
bool destroyed_;
};
#endif // WATERFALLPLOTWRAPPER_H

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/**
*
* \section COPYRIGHT
*
* Copyright 2013-2014 The libLTE Developers. See the
* COPYRIGHT file at the top-level directory of this distribution.
*
* \section LICENSE
*
* This file is part of the libLTE library.
*
* libLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include "plot/plot_waterfall.h"
#include "Waterfallplot.h"
#include <complex.h>
int plot_waterfall_init(plot_waterfall_t *h, int numDataPoints, int numRows) {
*h = (void*) new Waterfallplot(numDataPoints, numRows);
return (*h != NULL)?0:-1;
}
void plot_waterfall_setTitle(plot_waterfall_t *h, char *title) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setTitle(title);
}
void plot_waterfall_appendNewData(plot_waterfall_t *h, float *data,
int num_points) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->appendNewData(data, num_points);
}
void plot_complex_setPlotXLabel(plot_waterfall_t *h, char *xLabel) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setPlotXLabel(xLabel);
}
void plot_complex_setPlotYLabel(plot_waterfall_t *h, char *yLabel) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setPlotXLabel(yLabel);
}
void plot_waterfall_setPlotXAxisRange(plot_waterfall_t *h, double xMin, double xMax) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setPlotXAxisRange(xMin, xMax);
}
void plot_waterfall_setPlotXAxisScale(plot_waterfall_t *h, double xMin, double xMax) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setPlotXAxisScale(xMin, xMax);
}
void plot_waterfall_setPlotYAxisScale(plot_waterfall_t *h, double yMin, double yMax) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setPlotYAxisScale(yMin, yMax);
}
void plot_waterfall_setSpectrogramXLabel(plot_waterfall_t *h, char* xLabel) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setSpectrogramXLabel(xLabel);
}
void plot_waterfall_setSpectrogramYLabel(plot_waterfall_t *h, char* yLabel) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setSpectrogramYLabel(yLabel);
}
void plot_waterfall_setSpectrogramXAxisRange(plot_waterfall_t *h, double xMin, double xMax) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setSpectrogramXAxisRange(xMin, xMax);
}
void plot_waterfall_setSpectrogramYAxisRange(plot_waterfall_t *h, double yMin, double yMax) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setSpectrogramYAxisRange(yMin, yMax);
}
void plot_waterfall_setSpectrogramZAxisScale(plot_waterfall_t *h, double zMin, double zMax) {
Waterfallplot *plot = static_cast<Waterfallplot*>(*h);
plot->setSpectrogramZAxisScale(zMin, zMax);
}

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graphics/lib/waterfallplot/test/CMakeLists.txt Normal file
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#
# Copyright 2012-2013 The Iris Project Developers. See the
# COPYRIGHT file at the top-level directory of this distribution
# and at http://www.softwareradiosystems.com/iris/copyright.html.
#
# This file is part of the Iris Project.
#
# Iris is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# Iris is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# A copy of the GNU Lesser General Public License can be found in
# the LICENSE file in the top-level directory of this distribution
# and at http://www.gnu.org/licenses/.
#
########################################################################
# Build tests
########################################################################
#turn the test cpp file into an executable with an int main() function
ADD_DEFINITIONS(-DBOOST_TEST_DYN_LINK -DBOOST_TEST_MAIN)
INCLUDE_DIRECTORIES(..)
ADD_EXECUTABLE(waterfallplot_test Waterfallplot_test.cpp)
TARGET_LINK_LIBRARIES(waterfallplot_test ${Boost_LIBRARIES} graphics)
ADD_TEST(waterfallplot_test waterfallplot_test)

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graphics/lib/waterfallplot/test/Waterfallplot_test.cpp Normal file
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/**
* \file lib/generic/modulation/Crc_test.cpp
* \version 1.0
*
* \section COPYRIGHT
*
* Copyright 2012-2013 The Iris Project Developers. See the
* COPYRIGHT file at the top-level directory of this distribution
* and at http://www.softwareradiosystems.com/iris/copyright.html.
*
* \section LICENSE
*
* This file is part of the Iris Project.
*
* Iris is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* Iris is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* A copy of the GNU Lesser General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
* \section DESCRIPTION
*
* Main test file for Waterfallplot class.
*/
#include "Waterfallplot.h"
#include <math.h>
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <qapplication.h>
#include <cstdlib>
#include <vector>
#define PI 3.14159265358979323846
using namespace std;
void *threadMain1(void *arg) {
int n = 2048;
Waterfallplot plot(n, n);
plot.setTitle("Float");
float step = 1.0 * PI / n;
float* data = new float[n * 2];
for (int i = 0; i < n * 2; i++)
data[i] = sinf(step * i);
for (int i = 0; i < n; i++) {
plot.appendNewData(data + i, n);
usleep(1000);
}
return NULL;
}
void *threadMain2(void *arg) {
int n = 2048;
Waterfallplot plot(n, n);
plot.setTitle("Double");
double step = 2.0 * PI / n;
double* data = new double[n * 2];
for (int i = 0; i < n * 2; i++)
data[i] = sin(step * i);
for (int i = 0; i < n; i++) {
plot.appendNewData(data + i, n);
usleep(1000);
}
return NULL;
}
void *threadMain3(void *arg) {
int n = 2048;
Waterfallplot plot(n, n);
plot.setTitle("FloatVec");
double step = 2.0 * PI / n;
std::vector<float> data;
data.resize(n * 2);
for (int i = 0; i < n * 2; i++)
data[i] = sin(step * i);
for (int i = 0; i < n; i++) {
plot.appendNewData(data.begin() + i, data.begin() + i + n);
usleep(1000);
}
return NULL;
}
int main(int argc, char *argv[]) {
int argc2 = 1;
char* argv2[] = { const_cast<char *>("Waterfallplot_Init_Test"), NULL };
QApplication a(argc2, argv2);
pthread_t threads[3];
int i;
if (pthread_create(&threads[0], NULL, threadMain1, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[1], NULL, threadMain2, NULL)) {
perror("pthread_create");
exit(-1);
}
if (pthread_create(&threads[2], NULL, threadMain3, NULL)) {
perror("pthread_create");
exit(-1);
}
qApp->exec();
for (i = 0; i < 3; i++) {
pthread_join(threads[i], NULL);
}
exit(0);
}

44
include/channel/ch_awgn.h
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/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#include <complex.h>
#ifndef CH_AWGN_
#define CH_AWGN_
typedef _Complex float cf;
void ch_awgn(const cf* input, cf* output, float variance, int buff_sz);
/* High-level API */
typedef struct {
const cf* input;
int in_len;
struct ch_awgn_ctrl_in {
float variance; // Noise variance
} ctrl_in;
cf* output;
int out_len;
}ch_awgn_hl;
int ch_awgn_initialize(ch_awgn_hl* hl);
int ch_awgn_work(ch_awgn_hl* hl);
int ch_awgn_stop(ch_awgn_hl* hl);
#endif

26
include/fec/crc.h
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/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CRC_
#define CRC_
unsigned int crc(unsigned int crc, char *bufptr, int len,
int long_crc,unsigned int poly, int paste_word);
#endif

55
include/io/filesink.h
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/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FILESINK_
#define FILESINK_
#include <stdint.h>
#include <stdlib.h>
#include "io/format.h"
/* Low-level API */
typedef struct {
FILE *f;
file_data_type_t type;
}filesink_t;
int filesink_init(filesink_t *q, char *filename, file_data_type_t type);
void filesink_close(filesink_t *q);
int filesink_write(filesink_t *q, void *buffer, int nsamples);
/* High-level API */
typedef struct {
filesink_t obj;
struct filesink_init {
char *file_name;
int block_length;
int data_type;
} init;
void* input;
int in_len;
}filesink_hl;
int filesink_initialize(filesink_hl* h);
int filesink_work( filesink_hl* hl);
int filesink_stop(filesink_hl* h);
#endif

7
include/io/format.h
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#ifndef FORMAT_
#define FORMAT_
typedef enum { FLOAT, COMPLEX_FLOAT, COMPLEX_SHORT, FLOAT_BIN, COMPLEX_FLOAT_BIN, COMPLEX_SHORT_BIN} file_data_type_t;
#endif

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include/lte.h
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/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#include <complex.h>
#include <math.h>
#ifndef _LTE_
#define _LTE_
#include "utils/bit.h"
#include "utils/convolution.h"
#include "utils/debug.h"
#include "utils/dft.h"
#include "utils/matrix.h"
#include "utils/mux.h"
#include "utils/nco.h"
#include "utils/pack.h"
#include "utils/vector.h"
#include "lte/base.h"
#include "lte/fft.h"
#include "lte/sequence.h"
#include "ch_estimation/chest.h"
#include "ch_estimation/refsignal.h"
#include "channel/ch_awgn.h"
#include "fec/viterbi.h"
#include "fec/convcoder.h"
#include "fec/crc.h"
#include "filter/filter2d.h"
#include "io/binsource.h"
#include "io/filesink.h"
#include "io/filesource.h"
#include "modem/demod_hard.h"
#include "modem/demod_soft.h"
#include "modem/mod.h"
#include "modem/modem_table.h"
#include "phch/pbch.h"
#include "ratematching/rm_conv.h"
#include "scrambling/scrambling.h"
#include "resampling/interp.h"
#include "sync/pss.h"
#include "sync/sfo.h"
#include "sync/sss.h"
#include "sync/sync.h"
#endif

37
include/lte/sequence.h
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/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LTESEQ_
#define LTESEQ_
#include "lte/base.h"
typedef struct {
char *c;
int len;
}sequence_t;
int sequence_init(sequence_t *q, int len);
void sequence_free(sequence_t *q);
int sequence_LTEPRS(sequence_t *q, int len, int seed);
int sequence_pbch(sequence_t *seq, lte_cp_t cp, int cell_id);
int sequence_pbch_crc(sequence_t *seq, int nof_ports);
#endif

49
include/modem/mod.h
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@ -1,49 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MOD_
#define MOD_
#include <complex.h>
#include <stdint.h>
#include "modem_table.h"
typedef _Complex float cf;
int mod_modulate(modem_table_t* table, const char *bits, cf* symbols, int nbits);
/* High-level API */
typedef struct {
modem_table_t obj;
struct mod_init {
enum modem_std std; // symbol mapping standard (see modem_table.h)
} init;
const char* input;
int in_len;
cf* output;
int out_len;
}mod_hl;
int mod_initialize(mod_hl* hl);
int mod_work(mod_hl* hl);
int mod_stop(mod_hl* hl);
#endif

79
include/phch/pbch.h
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@ -1,79 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PBCH_
#define PBCH_
#include "lte/base.h"
#include "modem/mod.h"
#include "modem/demod_soft.h"
#include "scrambling/scrambling.h"
#include "ratematching/rm_conv.h"
#include "fec/convcoder.h"
#include "fec/viterbi.h"
#include "fec/crc.h"
#define PBCH_RE_CPNORM 240
#define PBCH_RE_CPEXT 216
typedef _Complex float cf_t;
enum phich_length { NORMAL, EXTENDED};
enum phich_resources { R_1_6, R_1_2, R_1, R_2};
typedef struct {
int nof_ports;
int nof_prb;
int sfn;
enum phich_length phich_length;
int phich_resources;
}pbch_mib_t;
/* PBCH receiver */
typedef struct {
int cell_id;
lte_cp_t cp;
/* buffers */
cf_t *pbch_symbols;
float *pbch_llr;
float *temp;
float *pbch_rm;
char *data;
int frame_idx;
/* tx & rx objects */
modem_table_t mod;
demod_soft_t demod;
sequence_t seq_pbch;
viterbi_t decoder;
}pbch_t;
int pbch_init(pbch_t *q, int cell_id, lte_cp_t cp);
void pbch_free(pbch_t *q);
int pbch_decode(pbch_t *q, cf_t *slot1_symbols, cf_t **ce, int nof_ports, int nof_prb, float ebno, pbch_mib_t *data);
void pbch_mib_fprint(FILE *stream, pbch_mib_t *mib);
bool pbch_exists(int nframe, int nslot);
int pbch_put(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
int pbch_get(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
#endif

24
include/resampling/interp.h
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@ -1,24 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
typedef _Complex float cf_t;
void interp_linear_offset(cf_t *input, cf_t *output, int M, int len, int off_st, int off_end);
void interp_linear(cf_t *input, cf_t *output, int M, int len);
void interp_linear_f(float *input, float *output, int M, int len);

65
include/scrambling/scrambling.h
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@ -1,65 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SCRAMBLING_
#define SCRAMBLING_
#include "lte/sequence.h"
#include "lte/base.h"
/* Scrambling has no state */
void scrambling_bit(sequence_t *s, char *data);
void scrambling_float(sequence_t *s, float *data);
int scrambling_float_offset(sequence_t *s, float *data, int offset, int len);
/* High-level API */
/* channel integer values */
#define PDSCH 0 /* also PUSCH */
#define PCFICH 1
#define PDCCH 2
#define PBCH 3
#define PMCH 4
#define PUCCH 5
typedef struct {
sequence_t seq[NSUBFRAMES_X_FRAME];
}scrambling_t;
typedef struct {
scrambling_t obj;
struct scrambling_init {
int hard;
int q;
int cell_id;
int nrnti;
int nMBSFN;
int channel;
int nof_symbols; // 7 normal 6 extended
} init;
void *input; // input type may be char or float depending on hard
int in_len;
struct scrambling_ctrl_in {
int subframe;
} ctrl_in;
void *output;
int out_len;
}scrambling_hl;
#endif

25
include/sync/sfo.h
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@ -1,25 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SFO_
#define SFO_
float sfo_estimate(int *t0, int len, float period);
float sfo_estimate_period(int *t0, int *t, int len, float period);
#endif

56
include/sync/sync.h
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@ -1,56 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SYNC_
#define SYNC_
#include "pss.h"
#include "sss.h"
#include "sfo.h"
enum sync_pss_det { ABSOLUTE, PEAK_MEAN};
typedef struct {
pss_synch_t pss[3]; // One for each N_id_2
sss_synch_t sss[3]; // One for each N_id_2
enum sync_pss_det pss_mode;
float threshold;
float peak_to_avg;
int force_N_id_2;
int N_id_2;
int N_id_1;
int slot_id;
float cfo;
}sync_t;
int sync_run(sync_t *q, cf_t *input, int read_offset);
float sync_get_cfo(sync_t *q);
void sync_pss_det_absolute(sync_t *q);
void sync_pss_det_peakmean(sync_t *q);
void sync_force_N_id_2(sync_t *q, int force_N_id_2);
int sync_get_slot_id(sync_t *q);
float sync_get_peak_to_avg(sync_t *q);
int sync_get_N_id_2(sync_t *q);
int sync_get_N_id_1(sync_t *q);
int sync_get_cell_id(sync_t *q);
void sync_set_threshold(sync_t *q, float threshold);
int sync_init(sync_t *q, int frame_size);
void sync_free(sync_t *q);
#endif

31
include/utils/bit.h
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@ -1,31 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef BIT_
#define BIT_
#include <stdint.h>
#include <stdio.h>
uint32_t bit_unpack(char **bits, int nof_bits);
void bit_pack(uint32_t value, char **bits, int nof_bits);
void bit_fprint(FILE *stream, char *bits, int nof_bits);
unsigned int bit_diff(char *x, char *y, int nbits);
#endif

37
include/utils/debug.h
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#ifndef DEBUG_H
#define DEBUG_H
#include <stdio.h>
#define VERBOSE_DEBUG 2
#define VERBOSE_INFO 1
#define VERBOSE_NONE 0
#include <sys/time.h>
void get_time_interval(struct timeval * tdata);
#ifndef DEBUG_DISABLED
extern int verbose;
#define VERBOSE_ISINFO() (verbose==VERBOSE_INFO)
#define VERBOSE_ISDEBUG() (verbose==VERBOSE_DEBUG)
#define PRINT_DEBUG verbose=VERBOSE_DEBUG
#define PRINT_INFO verbose=VERBOSE_INFO
#define PRINT_NONE verbose=VERBOSE_NONE
#define DEBUG(_fmt, ...) if (verbose >= VERBOSE_DEBUG) \
fprintf(stdout, "[DEBUG]: " _fmt, __VA_ARGS__)
#define INFO(_fmt, ...) if (verbose >= VERBOSE_INFO) \
fprintf(stdout, "[INFO]: " _fmt, __VA_ARGS__)
#else
#define DEBUG
#define INFO
#endif
#endif

30
include/utils/mux.h
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@ -1,30 +0,0 @@
/*
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
*
* OSLD-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OSLD-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MUX_
#define MUX_
void mux(void **input, void *output, int *input_lengths, int *input_padding_pre, int nof_inputs,
int sample_sz);
void demux(void *input, void **output, int *output_lengths,
int *output_padding_pre, int *output_padding_post, int nof_outputs,
int sample_sz);
#endif

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