mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-08-08 11:50:35 +00:00
eae967ed1a
See https://clang.llvm.org/extra/clang-tidy/checks/performance-unnecessary-value-param.html
170 lines
5.0 KiB
C++
170 lines
5.0 KiB
C++
/*!
|
|
* \file glonass_l2_ca_dll_pll_tracking_cc.h
|
|
* \brief Implementation of a code DLL + carrier PLL tracking block
|
|
* \author Damian Miralles, 2018. dmiralles2009(at)gmail.com
|
|
*
|
|
*
|
|
* Code DLL + carrier PLL according to the algorithms described in:
|
|
* K.Borre, D.M.Akos, N.Bertelsen, P.Rinder, and S.H.Jensen,
|
|
* A Software-Defined GPS and Galileo Receiver. A Single-Frequency
|
|
* Approach, Birkha user, 2007
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*
|
|
* 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
|
|
* (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_GLONASS_L2_CA_DLL_PLL_TRACKING_CC_H
|
|
#define GNSS_SDR_GLONASS_L2_CA_DLL_PLL_TRACKING_CC_H
|
|
|
|
#include "cpu_multicorrelator.h"
|
|
#include "gnss_synchro.h"
|
|
#include "tracking_2nd_DLL_filter.h"
|
|
#include "tracking_2nd_PLL_filter.h"
|
|
#include <gnuradio/block.h>
|
|
#include <fstream>
|
|
#include <map>
|
|
#include <string>
|
|
|
|
class Glonass_L2_Ca_Dll_Pll_Tracking_cc;
|
|
|
|
using glonass_l2_ca_dll_pll_tracking_cc_sptr = boost::shared_ptr<Glonass_L2_Ca_Dll_Pll_Tracking_cc>;
|
|
|
|
glonass_l2_ca_dll_pll_tracking_cc_sptr
|
|
glonass_l2_ca_dll_pll_make_tracking_cc(
|
|
int64_t fs_in, uint32_t vector_length,
|
|
bool dump,
|
|
const std::string& dump_filename,
|
|
float pll_bw_hz,
|
|
float dll_bw_hz,
|
|
float early_late_space_chips);
|
|
|
|
|
|
/*!
|
|
* \brief This class implements a DLL + PLL tracking loop block
|
|
*/
|
|
class Glonass_L2_Ca_Dll_Pll_Tracking_cc : public gr::block
|
|
{
|
|
public:
|
|
~Glonass_L2_Ca_Dll_Pll_Tracking_cc();
|
|
|
|
void set_channel(uint32_t channel);
|
|
void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro);
|
|
void start_tracking();
|
|
|
|
int general_work(int noutput_items, gr_vector_int& ninput_items,
|
|
gr_vector_const_void_star& input_items, gr_vector_void_star& output_items);
|
|
|
|
void forecast(int noutput_items, gr_vector_int& ninput_items_required);
|
|
|
|
private:
|
|
friend glonass_l2_ca_dll_pll_tracking_cc_sptr
|
|
glonass_l2_ca_dll_pll_make_tracking_cc(
|
|
int64_t fs_in, uint32_t vector_length,
|
|
bool dump,
|
|
const std::string& dump_filename,
|
|
float pll_bw_hz,
|
|
float dll_bw_hz,
|
|
float early_late_space_chips);
|
|
|
|
Glonass_L2_Ca_Dll_Pll_Tracking_cc(
|
|
int64_t fs_in, uint32_t vector_length,
|
|
bool dump,
|
|
const std::string& dump_filename,
|
|
float pll_bw_hz,
|
|
float dll_bw_hz,
|
|
float early_late_space_chips);
|
|
|
|
// tracking configuration vars
|
|
uint32_t d_vector_length;
|
|
bool d_dump;
|
|
|
|
Gnss_Synchro* d_acquisition_gnss_synchro;
|
|
uint32_t d_channel;
|
|
|
|
int64_t d_fs_in;
|
|
int64_t d_glonass_freq_ch;
|
|
|
|
double d_early_late_spc_chips;
|
|
|
|
// remaining code phase and carrier phase between tracking loops
|
|
double d_rem_code_phase_samples;
|
|
double d_rem_code_phase_chips;
|
|
double d_rem_carr_phase_rad;
|
|
|
|
// PLL and DLL filter library
|
|
Tracking_2nd_DLL_filter d_code_loop_filter;
|
|
Tracking_2nd_PLL_filter d_carrier_loop_filter;
|
|
|
|
// acquisition
|
|
double d_acq_code_phase_samples;
|
|
double d_acq_carrier_doppler_hz;
|
|
// correlator
|
|
int32_t d_n_correlator_taps;
|
|
gr_complex* d_ca_code;
|
|
float* d_local_code_shift_chips;
|
|
gr_complex* d_correlator_outs;
|
|
cpu_multicorrelator multicorrelator_cpu;
|
|
|
|
|
|
// tracking vars
|
|
double d_code_freq_chips;
|
|
double d_code_phase_step_chips;
|
|
double d_carrier_doppler_hz;
|
|
double d_carrier_doppler_phase_step_rad;
|
|
double d_carrier_frequency_hz;
|
|
double d_carrier_phase_step_rad;
|
|
double d_acc_carrier_phase_rad;
|
|
double d_code_phase_samples;
|
|
|
|
//PRN period in samples
|
|
int32_t d_current_prn_length_samples;
|
|
|
|
//processing samples counters
|
|
uint64_t d_sample_counter;
|
|
uint64_t d_acq_sample_stamp;
|
|
|
|
// CN0 estimation and lock detector
|
|
int32_t d_cn0_estimation_counter;
|
|
gr_complex* d_Prompt_buffer;
|
|
double d_carrier_lock_test;
|
|
double d_CN0_SNV_dB_Hz;
|
|
double d_carrier_lock_threshold;
|
|
int32_t d_carrier_lock_fail_counter;
|
|
|
|
// control vars
|
|
bool d_enable_tracking;
|
|
bool d_pull_in;
|
|
|
|
// file dump
|
|
std::string d_dump_filename;
|
|
std::ofstream d_dump_file;
|
|
|
|
std::map<std::string, std::string> systemName;
|
|
std::string sys;
|
|
|
|
int32_t save_matfile();
|
|
};
|
|
|
|
#endif //GNSS_SDR_GLONASS_L2_CA_DLL_PLL_TRACKING_CC_H
|