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gnss-sdr/src/algorithms/libs/gnss_signal_processing.h

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/*!
* \file gnss_signal_processing.h
* \brief This library gathers a few functions used by the algorithms of gnss-sdr,
* regardless of system used
*
* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
*
* Detailed description of the file here if needed.
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
*
* GNSS-SDR 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_GNSS_SIGNAL_PROCESSING_H_
#define GNSS_SDR_GNSS_SIGNAL_PROCESSING_H_
#include <complex>
#include <cstdint>
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/*!
* \brief This function generates a complex exponential in _dest.
*
*/
void complex_exp_gen(std::complex<float>* _dest, double _f, double _fs,
uint32_t _samps);
/*!
* \brief This function generates a conjugate complex exponential in _dest.
*
*/
void complex_exp_gen_conj(std::complex<float>* _dest, double _f, double _fs,
uint32_t _samps);
/*!
* \brief This function makes a conversion from hex (the input is a char)
* to binary (the output are 4 ints with +1 or -1 values).
*
*/
void hex_to_binary_converter(int32_t* _dest, char _from);
/*!
* \brief This function resamples a sequence of float values.
*
*/
void resampler(const float* _from, float* _dest,
float _fs_in, float _fs_out, uint32_t _length_in,
uint32_t _length_out);
/*!
* \brief This function resamples a sequence of complex values.
*
*/
void resampler(const std::complex<float>* _from, std::complex<float>* _dest,
float _fs_in, float _fs_out, uint32_t _length_in,
uint32_t _length_out);
#endif /* GNSS_SDR_GNSS_SIGNAL_PROCESSING_H_ */