mirror of https://github.com/gnss-sdr/gnss-sdr
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/*!
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* \file cpu_multicorrelator.h
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* \brief High optimized CPU vector multiTAP correlator class
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* \authors <ul>
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* <li> Javier Arribas, 2015. jarribas(at)cttc.es
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* </ul>
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*
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* Class that implements a high optimized vector multiTAP correlator class for CPUs
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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_CPU_MULTICORRELATOR_H
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#define GNSS_SDR_CPU_MULTICORRELATOR_H
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#include <complex>
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/** \addtogroup Tracking
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* \{ */
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/** \addtogroup Tracking_libs tracking_libs
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* Utitilies for GNSS signal tracking.
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* \{ */
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/*!
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* \brief Class that implements carrier wipe-off and correlators.
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*/
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class Cpu_Multicorrelator
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{
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public:
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Cpu_Multicorrelator() = default;
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~Cpu_Multicorrelator();
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bool init(int max_signal_length_samples, int n_correlators);
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bool set_local_code_and_taps(int code_length_chips, const std::complex<float> *local_code_in, float *shifts_chips);
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bool set_input_output_vectors(std::complex<float> *corr_out, const std::complex<float> *sig_in);
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void update_local_code(int correlator_length_samples, float rem_code_phase_chips, float code_phase_step_chips);
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bool Carrier_wipeoff_multicorrelator_resampler(float rem_carrier_phase_in_rad, float phase_step_rad, float rem_code_phase_chips, float code_phase_step_chips, int signal_length_samples);
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bool free();
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private:
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// Allocate the device input vectors
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const std::complex<float> *d_sig_in{nullptr};
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const std::complex<float> *d_local_code_in{nullptr};
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std::complex<float> **d_local_codes_resampled{nullptr};
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std::complex<float> *d_corr_out{nullptr};
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float *d_shifts_chips{nullptr};
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int d_code_length_chips{0};
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int d_n_correlators{0};
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};
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/** \} */
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/** \} */
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#endif // GNSS_SDR_CPU_MULTICORRELATOR_H
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