srsRAN/lte/include/lte/utils/cexptab.h

49 lines
1.3 KiB
C

/**
*
* \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 CEXPTAB_
#define CEXPTAB_
#include <complex.h>
#include "lte/config.h"
typedef _Complex float cf_t;
typedef struct LIBLTE_API {
int size;
cf_t *tab;
}cexptab_t;
LIBLTE_API int cexptab_init(cexptab_t *nco, int size);
LIBLTE_API void cexptab_free(cexptab_t *nco);
LIBLTE_API void cexptab_gen(cexptab_t *nco, cf_t *x, float freq, int len);
LIBLTE_API void cexptab_gen_direct(cf_t *x, float freq, int len);
#endif // CEXPTAB_