mirror of https://github.com/PentHertz/srsLTE.git
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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/******************************************************************************
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* File: cexptab.h
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*
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* Description: Utility module for generation of complex exponential tables.
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*
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* Reference:
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*****************************************************************************/
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#ifndef SRSRAN_CEXPTAB_H
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#define SRSRAN_CEXPTAB_H
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#include "srsran/config.h"
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#include <complex.h>
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#include <stdint.h>
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typedef struct SRSRAN_API {
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uint32_t size;
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cf_t* tab;
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} srsran_cexptab_t;
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SRSRAN_API int srsran_cexptab_init(srsran_cexptab_t* nco, uint32_t size);
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SRSRAN_API void srsran_cexptab_free(srsran_cexptab_t* nco);
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SRSRAN_API void srsran_cexptab_gen(srsran_cexptab_t* nco, cf_t* x, float freq, uint32_t len);
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SRSRAN_API void srsran_cexptab_gen_direct(cf_t* x, float freq, uint32_t len);
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SRSRAN_API void srsran_cexptab_gen_sf(cf_t* x, float freq, uint32_t fft_size);
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#endif // SRSRAN_CEXPTAB_H
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