mirror of https://github.com/gnss-sdr/gnss-sdr
177 lines
7.3 KiB
C++
177 lines
7.3 KiB
C++
/*!
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* \file dll_pll_conf_fpga.cc
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* \brief Class that contains all the configuration parameters for generic
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* tracking block based on a DLL and a PLL for the FPGA.
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* \author Marc Majoral, 2019. mmajoral(at)cttc.cat
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* \author Javier Arribas, 2018. jarribas(at)cttc.es
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2019 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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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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#include "dll_pll_conf_fpga.h"
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#include "gnss_sdr_flags.h"
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#include <glog/logging.h>
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Dll_Pll_Conf_Fpga::Dll_Pll_Conf_Fpga()
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{
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/* DLL/PLL tracking configuration */
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high_dyn = false;
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smoother_length = 10;
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fs_in = 12500000.0;
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vector_length = 0U;
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dump = false;
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dump_mat = true;
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dump_filename = std::string("./dll_pll_dump.dat");
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enable_fll_pull_in = false;
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enable_fll_steady_state = false;
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pull_in_time_s = 10;
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bit_synchronization_time_limit_s = pull_in_time_s + 60;
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fll_filter_order = 1;
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pll_filter_order = 3;
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dll_filter_order = 2;
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fll_bw_hz = 35.0;
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pll_pull_in_bw_hz = 50.0;
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dll_pull_in_bw_hz = 3.0;
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pll_bw_hz = 5.0;
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dll_bw_hz = 0.5;
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pll_bw_narrow_hz = 2.0;
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dll_bw_narrow_hz = 0.25;
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early_late_space_chips = 0.25;
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very_early_late_space_chips = 0.5;
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early_late_space_narrow_chips = 0.15;
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very_early_late_space_narrow_chips = 0.5;
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slope = 1.0;
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spc = 0.5;
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y_intercept = 1.0;
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carrier_aiding = true;
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extend_correlation_symbols = 1;
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cn0_samples = FLAGS_cn0_samples;
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cn0_smoother_samples = 200;
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cn0_smoother_alpha = 0.002;
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carrier_lock_test_smoother_alpha = 0.002;
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carrier_lock_test_smoother_samples = 25;
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cn0_min = FLAGS_cn0_min;
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max_carrier_lock_fail = FLAGS_max_carrier_lock_fail;
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max_code_lock_fail = FLAGS_max_lock_fail;
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carrier_lock_th = FLAGS_carrier_lock_th;
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// max_lock_fail = 50;
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enable_doppler_correction = false;
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track_pilot = true;
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system = 'G';
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signal[0] = '1';
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signal[1] = 'C';
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signal[2] = '\0';
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device_name = "/dev/uio";
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dev_file_num = 3;
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num_prev_assigned_ch = 0;
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code_length_chips = 0U;
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code_samples_per_chip = 0U;
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ca_codes = nullptr;
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data_codes = nullptr;
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extended_correlation_in_fpga = false;
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extend_fpga_integration_periods = 1;
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fpga_integration_period = 0;
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}
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void Dll_Pll_Conf_Fpga::SetFromConfiguration(const ConfigurationInterface *configuration,
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const std::string &role)
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{
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double fs_in_deprecated = configuration->property("GNSS-SDR.internal_fs_hz", fs_in);
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fs_in = configuration->property("GNSS-SDR.internal_fs_sps", fs_in_deprecated);
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high_dyn = configuration->property(role + ".high_dyn", high_dyn);
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smoother_length = configuration->property(role + ".smoother_length", smoother_length);
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if (smoother_length < 1)
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{
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smoother_length = 1;
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LOG(WARNING) << "smoother_length must be bigger than 0. It has been set to 1";
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}
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dump = configuration->property(role + ".dump", dump);
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dump_mat = configuration->property(role + ".dump_mat", dump_mat);
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dump_filename = configuration->property(role + ".dump_filename", dump_filename);
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enable_fll_pull_in = configuration->property(role + ".enable_fll_pull_in", enable_fll_pull_in);
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enable_fll_steady_state = configuration->property(role + ".enable_fll_steady_state", enable_fll_steady_state);
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pull_in_time_s = configuration->property(role + ".pull_in_time_s", pull_in_time_s);
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track_pilot = configuration->property(role + ".track_pilot", track_pilot);
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bit_synchronization_time_limit_s = pull_in_time_s + 60;
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dll_filter_order = configuration->property(role + ".dll_filter_order", dll_filter_order);
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pll_filter_order = configuration->property(role + ".pll_filter_order", pll_filter_order);
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if (dll_filter_order < 1)
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{
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LOG(WARNING) << "dll_filter_order parameter must be 1, 2 or 3. Set to 1.";
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dll_filter_order = 1;
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}
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if (dll_filter_order > 3)
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{
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LOG(WARNING) << "dll_filter_order parameter must be 1, 2 or 3. Set to 3.";
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dll_filter_order = 3;
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}
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if (pll_filter_order < 2)
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{
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LOG(WARNING) << "pll_filter_order parameter must be 2 or 3. Set to 2.";
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pll_filter_order = 2;
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}
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if (pll_filter_order > 3)
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{
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LOG(WARNING) << "pll_filter_order parameter must be 2 or 3. Set to 3.";
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pll_filter_order = 3;
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}
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if (pll_filter_order == 2)
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{
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fll_filter_order = 1;
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}
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if (pll_filter_order == 3)
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{
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fll_filter_order = 2;
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}
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fll_bw_hz = configuration->property(role + ".fll_bw_hz", fll_bw_hz);
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pll_pull_in_bw_hz = 50.0;
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dll_pull_in_bw_hz = 3.0;
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pll_bw_hz = configuration->property(role + ".pll_bw_hz", pll_bw_hz);
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if (FLAGS_pll_bw_hz != 0.0)
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{
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pll_bw_hz = static_cast<float>(FLAGS_pll_bw_hz);
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}
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dll_bw_hz = configuration->property(role + ".dll_bw_hz", dll_bw_hz);
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if (FLAGS_dll_bw_hz != 0.0)
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{
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dll_bw_hz = static_cast<float>(FLAGS_dll_bw_hz);
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}
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pll_bw_narrow_hz = configuration->property(role + ".pll_bw_narrow_hz", pll_bw_narrow_hz);
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dll_bw_narrow_hz = configuration->property(role + ".dll_bw_narrow_hz", dll_bw_narrow_hz);
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early_late_space_chips = configuration->property(role + ".early_late_space_chips", early_late_space_chips);
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very_early_late_space_chips = configuration->property(role + ".very_early_late_space_chips", very_early_late_space_chips);
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early_late_space_narrow_chips = configuration->property(role + ".early_late_space_narrow_chips", early_late_space_narrow_chips);
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very_early_late_space_narrow_chips = configuration->property(role + ".very_early_late_space_narrow_chips", very_early_late_space_narrow_chips);
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extend_correlation_symbols = configuration->property(role + ".extend_correlation_symbols", extend_correlation_symbols);
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cn0_samples = configuration->property(role + ".cn0_samples", cn0_samples);
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carrier_aiding = configuration->property(role + ".carrier_aiding", carrier_aiding);
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// tracking lock tests smoother parameters
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cn0_smoother_samples = configuration->property(role + ".cn0_smoother_samples", cn0_smoother_samples);
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cn0_smoother_alpha = configuration->property(role + ".cn0_smoother_alpha", cn0_smoother_alpha);
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carrier_lock_test_smoother_alpha = configuration->property(role + ".carrier_lock_test_smoother_alpha", carrier_lock_test_smoother_alpha);
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carrier_lock_test_smoother_samples = configuration->property(role + ".carrier_lock_test_smoother_samples", carrier_lock_test_smoother_samples);
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cn0_min = configuration->property(role + ".cn0_min", cn0_min);
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max_carrier_lock_fail = configuration->property(role + ".max_carrier_lock_fail", max_carrier_lock_fail);
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max_code_lock_fail = configuration->property(role + ".max_lock_fail", max_code_lock_fail);
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carrier_lock_th = configuration->property(role + ".carrier_lock_th", carrier_lock_th);
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// max_lock_fail = 50;
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device_name = configuration->property(role + ".devicename", device_name);
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}
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