mirror of https://github.com/PentHertz/srsLTE.git
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/**
|
|
* Copyright 2013-2022 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsRAN.
|
|
*
|
|
* srsRAN is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsRAN 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 Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero 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 SRSRAN_CHEST_COMMON_H
|
|
#define SRSRAN_CHEST_COMMON_H
|
|
|
|
#include "srsran/config.h"
|
|
#include <stdint.h>
|
|
|
|
#define SRSRAN_CHEST_MAX_SMOOTH_FIL_LEN 64
|
|
|
|
typedef enum SRSRAN_API {
|
|
SRSRAN_CHEST_FILTER_GAUSS = 0,
|
|
SRSRAN_CHEST_FILTER_TRIANGLE,
|
|
SRSRAN_CHEST_FILTER_NONE
|
|
} srsran_chest_filter_t;
|
|
|
|
SRSRAN_API void srsran_chest_average_pilots(cf_t* input,
|
|
cf_t* output,
|
|
float* filter,
|
|
uint32_t nof_ref,
|
|
uint32_t nof_symbols,
|
|
uint32_t filter_len);
|
|
|
|
SRSRAN_API uint32_t srsran_chest_set_smooth_filter3_coeff(float* smooth_filter, float w);
|
|
|
|
SRSRAN_API float srsran_chest_estimate_noise_pilots(cf_t* noisy, cf_t* noiseless, cf_t* noise_vec, uint32_t nof_pilots);
|
|
|
|
SRSRAN_API uint32_t srsran_chest_set_triangle_filter(float* fil, int filter_len);
|
|
|
|
SRSRAN_API uint32_t srsran_chest_set_smooth_filter_gauss(float* filter, uint32_t order, float std_dev);
|
|
|
|
#endif // SRSRAN_CHEST_COMMON_H
|