mirror of https://github.com/gnss-sdr/gnss-sdr
83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
/*!
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* \file gnss_signal_replica.h
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* \brief This library gathers a few functions used for GNSS signal replica
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* generation regardless of system used
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* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
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*
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#ifndef GNSS_SDR_GNSS_SIGNAL_REPLICA_H
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#define GNSS_SDR_GNSS_SIGNAL_REPLICA_H
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#include <complex>
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#include <cstdint>
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#include <string>
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#if HAS_STD_SPAN
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#include <span>
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namespace own = std;
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#else
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#include <gsl/gsl-lite.hpp>
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namespace own = gsl;
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#endif
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/** \addtogroup Algorithms_Library
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* \{ */
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/** \addtogroup Algorithm_libs algorithms_libs
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* \{ */
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/*!
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* \brief This function generates a complex exponential in dest.
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*
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*/
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void complex_exp_gen(own::span<std::complex<float>> dest, double freq, double sampling_freq);
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/*!
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* \brief This function generates a conjugate complex exponential in dest.
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*
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*/
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void complex_exp_gen_conj(own::span<std::complex<float>> dest, double freq, double sampling_freq);
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/*!
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* \brief This function makes a conversion from hex (the input is a char)
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* to binary (the output are 4 ints with +1 or -1 values).
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*
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*/
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void hex_to_binary_converter(own::span<int32_t> dest, char from);
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/*!
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* \brief This function makes a conversion from hex (the input is a char)
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* to binary (the output is a string of 4 char with 0 or 1 values).
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*
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*/
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std::string hex_to_binary_string(char from);
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/*!
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* \brief This function resamples a sequence of float values.
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*
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*/
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void resampler(const own::span<float> from, own::span<float> dest,
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float fs_in, float fs_out);
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/*!
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* \brief This function resamples a sequence of complex values.
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*
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*/
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void resampler(own::span<const std::complex<float>> from, own::span<std::complex<float>> dest,
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float fs_in, float fs_out);
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/** \} */
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/** \} */
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#endif // GNSS_SDR_GNSS_SIGNAL_REPLICA_H
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