mirror of https://github.com/gnss-sdr/gnss-sdr
Integrate unified block for DLL/PLL Tracking
This commit is contained in:
Carles Fernandez
commit
1eede79e7f
File diff suppressed because it is too large
Load Diff
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@ -53,7 +53,7 @@ void galileo_e1_code_gen_int(int* _dest, char _Signal[3], signed int _prn)
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for (size_t i = 0; i < Galileo_E1_B_PRIMARY_CODE[prn].length(); i++)
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{
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hex_to_binary_converter(&_dest[index], Galileo_E1_B_PRIMARY_CODE[prn].at(i));
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index = index + 4;
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index += 4;
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}
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}
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else if (_galileo_signal.rfind("1C") != std::string::npos && _galileo_signal.length() >= 2)
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@ -61,13 +61,9 @@ void galileo_e1_code_gen_int(int* _dest, char _Signal[3], signed int _prn)
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for (size_t i = 0; i < Galileo_E1_C_PRIMARY_CODE[prn].length(); i++)
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{
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hex_to_binary_converter(&_dest[index], Galileo_E1_C_PRIMARY_CODE[prn].at(i));
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index = index + 4;
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index += 4;
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}
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}
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else
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{
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return;
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}
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}
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@ -107,6 +103,18 @@ void galileo_e1_sinboc_61_gen_int(int* _dest, int* _prn, unsigned int _length_ou
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}
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}
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void galileo_e1_code_gen_sinboc11_float(float* _dest, char _Signal[3], unsigned int _prn)
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{
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std::string _galileo_signal = _Signal;
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unsigned int _codeLength = static_cast<unsigned int>(Galileo_E1_B_CODE_LENGTH_CHIPS);
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int primary_code_E1_chips[4092]; // _codeLength not accepted by Clang
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galileo_e1_code_gen_int(primary_code_E1_chips, _Signal, _prn); //generate Galileo E1 code, 1 sample per chip
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for (unsigned int i = 0; i < _codeLength; i++)
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{
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_dest[2 * i] = static_cast<float>(primary_code_E1_chips[i]);
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_dest[2 * i + 1] = -_dest[2 * i];
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}
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}
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void galileo_e1_gen_float(float* _dest, int* _prn, char _Signal[3])
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{
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@ -137,8 +145,6 @@ void galileo_e1_gen_float(float* _dest, int* _prn, char _Signal[3])
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beta * static_cast<float>(sinboc_61[i]);
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}
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}
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else
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return;
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}
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@ -34,6 +34,11 @@
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#include <complex>
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/*!
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* \brief This function generates Galileo E1 code (can select E1B or E1C sinboc).
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*
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*/
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void galileo_e1_code_gen_sinboc11_float(float* _dest, char _Signal[3], unsigned int _prn);
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/*!
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* \brief This function generates Galileo E1 code (can select E1B or E1C, cboc or sinboc
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@ -71,6 +71,23 @@ void gps_l2c_m_code_gen_complex(std::complex<float>* _dest, unsigned int _prn)
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delete[] _code;
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}
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void gps_l2c_m_code_gen_float(float* _dest, unsigned int _prn)
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{
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int32_t* _code = new int32_t[GPS_L2_M_CODE_LENGTH_CHIPS];
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if (_prn > 0 and _prn < 51)
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{
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gps_l2c_m_code(_code, _prn);
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}
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for (signed int i = 0; i < GPS_L2_M_CODE_LENGTH_CHIPS; i++)
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{
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_dest[i] = 1.0 - 2.0 * static_cast<float>(_code[i]);
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}
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delete[] _code;
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}
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/*
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* Generates complex GPS L2C M code for the desired SV ID and sampled to specific sampling frequency
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@ -38,7 +38,7 @@
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//!Generates complex GPS L2C M code for the desired SV ID
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void gps_l2c_m_code_gen_complex(std::complex<float>* _dest, unsigned int _prn);
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void gps_l2c_m_code_gen_float(float* _dest, unsigned int _prn);
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//! Generates complex GPS L2C M code for the desired SV ID, and sampled to specific sampling frequency
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void gps_l2c_m_code_gen_complex_sampled(std::complex<float>* _dest, unsigned int _prn, signed int _fs);
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@ -197,6 +197,22 @@ void gps_l5i_code_gen_complex(std::complex<float>* _dest, unsigned int _prn)
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delete[] _code;
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}
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void gps_l5i_code_gen_float(float* _dest, unsigned int _prn)
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{
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int32_t* _code = new int32_t[GPS_L5i_CODE_LENGTH_CHIPS];
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if (_prn > 0 and _prn < 51)
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{
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make_l5i(_code, _prn - 1);
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}
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for (signed int i = 0; i < GPS_L5i_CODE_LENGTH_CHIPS; i++)
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{
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_dest[i] = 1.0 - 2.0 * static_cast<float>(_code[i]);
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}
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delete[] _code;
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}
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/*
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* Generates complex GPS L5i code for the desired SV ID and sampled to specific sampling frequency
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@ -264,7 +280,22 @@ void gps_l5q_code_gen_complex(std::complex<float>* _dest, unsigned int _prn)
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delete[] _code;
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}
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void gps_l5q_code_gen_float(float* _dest, unsigned int _prn)
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{
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int32_t* _code = new int32_t[GPS_L5q_CODE_LENGTH_CHIPS];
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if (_prn > 0 and _prn < 51)
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{
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make_l5q(_code, _prn - 1);
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}
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for (signed int i = 0; i < GPS_L5q_CODE_LENGTH_CHIPS; i++)
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{
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_dest[i] = 1.0 - 2.0 * static_cast<float>(_code[i]);
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}
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delete[] _code;
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}
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/*
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* Generates complex GPS L5i code for the desired SV ID and sampled to specific sampling frequency
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*/
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@ -38,9 +38,11 @@
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//!Generates complex GPS L5i M code for the desired SV ID
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void gps_l5i_code_gen_complex(std::complex<float>* _dest, unsigned int _prn);
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void gps_l5i_code_gen_float(float* _dest, unsigned int _prn);
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//!Generates complex GPS L5q M code for the desired SV ID
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void gps_l5q_code_gen_complex(std::complex<float>* _dest, unsigned int _prn);
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void gps_l5q_code_gen_float(float* _dest, unsigned int _prn);
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//! Generates complex GPS L5i M code for the desired SV ID, and sampled to specific sampling frequency
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void gps_l5i_code_gen_complex_sampled(std::complex<float>* _dest, unsigned int _prn, signed int _fs);
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@ -70,9 +70,9 @@ gps_l5_telemetry_decoder_cc::gps_l5_telemetry_decoder_cc(
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d_TOW_at_Preamble = 0.0;
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//initialize the CNAV frame decoder (libswiftcnav)
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cnav_msg_decoder_init(&d_cnav_decoder);
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for (int aux = 0; aux < GPS_L5_NH_CODE_LENGTH; aux++)
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for (int aux = 0; aux < GPS_L5i_NH_CODE_LENGTH; aux++)
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{
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if (GPS_L5_NH_CODE[aux] == 0)
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if (GPS_L5i_NH_CODE[aux] == 0)
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{
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bits_NH[aux] = -1.0;
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}
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@ -119,9 +119,9 @@ int gps_l5_telemetry_decoder_cc::general_work(int noutput_items __attribute__((u
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int symbol_value = 0;
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//Search correlation with Neuman-Hofman Code (see IS-GPS-705D)
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if (sym_hist.size() == GPS_L5_NH_CODE_LENGTH)
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if (sym_hist.size() == GPS_L5i_NH_CODE_LENGTH)
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{
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for (int i = 0; i < GPS_L5_NH_CODE_LENGTH; i++)
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for (int i = 0; i < GPS_L5i_NH_CODE_LENGTH; i++)
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{
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if ((bits_NH[i] * sym_hist.at(i)) > 0.0)
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{
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@ -132,7 +132,7 @@ int gps_l5_telemetry_decoder_cc::general_work(int noutput_items __attribute__((u
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corr_NH -= 1;
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}
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}
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if (abs(corr_NH) == GPS_L5_NH_CODE_LENGTH)
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if (abs(corr_NH) == GPS_L5i_NH_CODE_LENGTH)
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{
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sync_NH = true;
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if (corr_NH > 0)
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@ -42,8 +42,7 @@
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#include <utility>
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#include <vector>
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extern "C"
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{
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extern "C" {
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#include "cnav_msg.h"
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#include "edc.h"
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#include "bits.h"
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@ -91,7 +90,7 @@ private:
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bool d_flag_valid_word;
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Gps_CNAV_Navigation_Message d_CNAV_Message;
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double bits_NH[GPS_L5_NH_CODE_LENGTH];
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double bits_NH[GPS_L5i_NH_CODE_LENGTH];
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std::deque<double> sym_hist;
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bool sync_NH;
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bool new_sym;
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@ -51,7 +51,6 @@ GalileoE1DllPllVemlTracking::GalileoE1DllPllVemlTracking(
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//################# CONFIGURATION PARAMETERS ########################
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int fs_in;
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int vector_length;
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int f_if;
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bool dump;
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std::string dump_filename;
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std::string item_type;
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@ -64,11 +63,10 @@ GalileoE1DllPllVemlTracking::GalileoE1DllPllVemlTracking(
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float very_early_late_space_chips;
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float early_late_space_narrow_chips;
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float very_early_late_space_narrow_chips;
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unified_ = configuration->property(role + ".unified", false);
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item_type = configuration->property(role + ".item_type", default_item_type);
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int fs_in_deprecated = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
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fs_in = configuration->property("GNSS-SDR.internal_fs_sps", fs_in_deprecated);
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f_if = configuration->property(role + ".if", 0);
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dump = configuration->property(role + ".dump", false);
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pll_bw_hz = configuration->property(role + ".pll_bw_hz", 5.0);
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if (FLAGS_pll_bw_hz != 0.0) pll_bw_hz = static_cast<float>(FLAGS_pll_bw_hz);
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@ -94,22 +92,44 @@ GalileoE1DllPllVemlTracking::GalileoE1DllPllVemlTracking(
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if (item_type.compare("gr_complex") == 0)
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{
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item_size_ = sizeof(gr_complex);
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tracking_ = galileo_e1_dll_pll_veml_make_tracking_cc(
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f_if,
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fs_in,
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vector_length,
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dump,
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dump_filename,
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pll_bw_hz,
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dll_bw_hz,
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pll_bw_narrow_hz,
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dll_bw_narrow_hz,
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early_late_space_chips,
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very_early_late_space_chips,
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early_late_space_narrow_chips,
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very_early_late_space_narrow_chips,
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extend_correlation_symbols,
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track_pilot);
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if (unified_)
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{
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char sig_[3] = "1B";
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tracking_unified_ = dll_pll_veml_make_tracking(
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fs_in,
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vector_length,
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dump,
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dump_filename,
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pll_bw_hz,
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dll_bw_hz,
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pll_bw_narrow_hz,
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dll_bw_narrow_hz,
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early_late_space_chips,
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very_early_late_space_chips,
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early_late_space_narrow_chips,
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very_early_late_space_narrow_chips,
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extend_correlation_symbols,
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track_pilot, 'E', sig_);
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}
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else
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{
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tracking_ = galileo_e1_dll_pll_veml_make_tracking_cc(
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0,
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fs_in,
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vector_length,
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dump,
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dump_filename,
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pll_bw_hz,
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dll_bw_hz,
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pll_bw_narrow_hz,
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dll_bw_narrow_hz,
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early_late_space_chips,
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very_early_late_space_chips,
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early_late_space_narrow_chips,
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very_early_late_space_narrow_chips,
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extend_correlation_symbols,
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track_pilot);
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}
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}
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else
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{
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@ -130,7 +150,10 @@ GalileoE1DllPllVemlTracking::~GalileoE1DllPllVemlTracking()
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void GalileoE1DllPllVemlTracking::start_tracking()
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{
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tracking_->start_tracking();
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if (unified_)
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tracking_unified_->start_tracking();
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else
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tracking_->start_tracking();
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}
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@ -140,13 +163,19 @@ void GalileoE1DllPllVemlTracking::start_tracking()
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void GalileoE1DllPllVemlTracking::set_channel(unsigned int channel)
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{
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channel_ = channel;
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tracking_->set_channel(channel);
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if (unified_)
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tracking_unified_->set_channel(channel);
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else
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tracking_->set_channel(channel);
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}
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void GalileoE1DllPllVemlTracking::set_gnss_synchro(Gnss_Synchro* p_gnss_synchro)
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{
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tracking_->set_gnss_synchro(p_gnss_synchro);
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if (unified_)
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tracking_unified_->set_gnss_synchro(p_gnss_synchro);
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else
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tracking_->set_gnss_synchro(p_gnss_synchro);
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}
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@ -170,11 +199,17 @@ void GalileoE1DllPllVemlTracking::disconnect(gr::top_block_sptr top_block)
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gr::basic_block_sptr GalileoE1DllPllVemlTracking::get_left_block()
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{
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return tracking_;
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if (unified_)
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return tracking_unified_;
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else
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return tracking_;
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}
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gr::basic_block_sptr GalileoE1DllPllVemlTracking::get_right_block()
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{
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return tracking_;
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if (unified_)
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return tracking_unified_;
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else
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return tracking_;
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}
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@ -39,6 +39,7 @@
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#include "tracking_interface.h"
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#include "galileo_e1_dll_pll_veml_tracking_cc.h"
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#include "dll_pll_veml_tracking.h"
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#include <string>
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@ -95,11 +96,13 @@ public:
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private:
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galileo_e1_dll_pll_veml_tracking_cc_sptr tracking_;
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dll_pll_veml_tracking_sptr tracking_unified_;
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size_t item_size_;
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unsigned int channel_;
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std::string role_;
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unsigned int in_streams_;
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unsigned int out_streams_;
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bool unified_;
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};
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#endif // GNSS_SDR_GALILEO_E1_DLL_PLL_VEML_TRACKING_H_
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@ -52,41 +52,64 @@ GpsL1CaDllPllTracking::GpsL1CaDllPllTracking(
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//################# CONFIGURATION PARAMETERS ########################
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int fs_in;
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int vector_length;
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int f_if;
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bool dump;
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std::string dump_filename;
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std::string item_type;
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std::string default_item_type = "gr_complex";
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float pll_bw_hz;
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float dll_bw_hz;
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float early_late_space_chips;
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item_type = configuration->property(role + ".item_type", default_item_type);
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int fs_in_deprecated = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
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fs_in = configuration->property("GNSS-SDR.internal_fs_sps", fs_in_deprecated);
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f_if = configuration->property(role + ".if", 0);
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dump = configuration->property(role + ".dump", false);
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pll_bw_hz = configuration->property(role + ".pll_bw_hz", 50.0);
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unified_ = configuration->property(role + ".unified", false);
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float pll_bw_hz = configuration->property(role + ".pll_bw_hz", 50.0);
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if (FLAGS_pll_bw_hz != 0.0) pll_bw_hz = static_cast<float>(FLAGS_pll_bw_hz);
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dll_bw_hz = configuration->property(role + ".dll_bw_hz", 2.0);
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float pll_bw_narrow_hz = configuration->property(role + ".pll_bw_narrow_hz", 20.0);
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float dll_bw_narrow_hz = configuration->property(role + ".dll_bw_narrow_hz", 2.0);
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float dll_bw_hz = configuration->property(role + ".dll_bw_hz", 2.0);
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if (FLAGS_dll_bw_hz != 0.0) dll_bw_hz = static_cast<float>(FLAGS_dll_bw_hz);
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early_late_space_chips = configuration->property(role + ".early_late_space_chips", 0.5);
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float early_late_space_chips = configuration->property(role + ".early_late_space_chips", 0.5);
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float early_late_space_narrow_chips = configuration->property(role + ".early_late_space_narrow_chips", 0.5);
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std::string default_dump_filename = "./track_ch";
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dump_filename = configuration->property(role + ".dump_filename", default_dump_filename); //unused!
|
||||
vector_length = std::round(fs_in / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS));
|
||||
|
||||
int symbols_extended_correlator = configuration->property(role + ".extend_correlation_symbols", 1);
|
||||
if (symbols_extended_correlator < 1) symbols_extended_correlator = 1;
|
||||
//################# MAKE TRACKING GNURadio object ###################
|
||||
if (item_type.compare("gr_complex") == 0)
|
||||
{
|
||||
item_size_ = sizeof(gr_complex);
|
||||
tracking_ = gps_l1_ca_dll_pll_make_tracking_cc(
|
||||
f_if,
|
||||
fs_in,
|
||||
vector_length,
|
||||
dump,
|
||||
dump_filename,
|
||||
pll_bw_hz,
|
||||
dll_bw_hz,
|
||||
early_late_space_chips);
|
||||
if (unified_)
|
||||
{
|
||||
char sig_[3] = "1C";
|
||||
tracking_unified_ = dll_pll_veml_make_tracking(
|
||||
fs_in,
|
||||
vector_length,
|
||||
dump,
|
||||
dump_filename,
|
||||
pll_bw_hz,
|
||||
dll_bw_hz,
|
||||
pll_bw_narrow_hz,
|
||||
dll_bw_narrow_hz,
|
||||
early_late_space_chips,
|
||||
early_late_space_chips,
|
||||
early_late_space_narrow_chips,
|
||||
early_late_space_narrow_chips,
|
||||
symbols_extended_correlator,
|
||||
false,
|
||||
'G', sig_);
|
||||
}
|
||||
else
|
||||
{
|
||||
tracking_ = gps_l1_ca_dll_pll_make_tracking_cc(
|
||||
0,
|
||||
fs_in,
|
||||
vector_length,
|
||||
dump,
|
||||
dump_filename,
|
||||
pll_bw_hz,
|
||||
dll_bw_hz,
|
||||
early_late_space_chips);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -105,7 +128,10 @@ GpsL1CaDllPllTracking::~GpsL1CaDllPllTracking()
|
|||
|
||||
void GpsL1CaDllPllTracking::start_tracking()
|
||||
{
|
||||
tracking_->start_tracking();
|
||||
if (unified_)
|
||||
tracking_unified_->start_tracking();
|
||||
else
|
||||
tracking_->start_tracking();
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -115,13 +141,19 @@ void GpsL1CaDllPllTracking::start_tracking()
|
|||
void GpsL1CaDllPllTracking::set_channel(unsigned int channel)
|
||||
{
|
||||
channel_ = channel;
|
||||
tracking_->set_channel(channel);
|
||||
if (unified_)
|
||||
tracking_unified_->set_channel(channel);
|
||||
else
|
||||
tracking_->set_channel(channel);
|
||||
}
|
||||
|
||||
|
||||
void GpsL1CaDllPllTracking::set_gnss_synchro(Gnss_Synchro* p_gnss_synchro)
|
||||
{
|
||||
tracking_->set_gnss_synchro(p_gnss_synchro);
|
||||
if (unified_)
|
||||
tracking_unified_->set_gnss_synchro(p_gnss_synchro);
|
||||
else
|
||||
tracking_->set_gnss_synchro(p_gnss_synchro);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -145,11 +177,17 @@ void GpsL1CaDllPllTracking::disconnect(gr::top_block_sptr top_block)
|
|||
|
||||
gr::basic_block_sptr GpsL1CaDllPllTracking::get_left_block()
|
||||
{
|
||||
return tracking_;
|
||||
if (unified_)
|
||||
return tracking_unified_;
|
||||
else
|
||||
return tracking_;
|
||||
}
|
||||
|
||||
|
||||
gr::basic_block_sptr GpsL1CaDllPllTracking::get_right_block()
|
||||
{
|
||||
return tracking_;
|
||||
if (unified_)
|
||||
return tracking_unified_;
|
||||
else
|
||||
return tracking_;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -40,6 +40,7 @@
|
|||
|
||||
#include "tracking_interface.h"
|
||||
#include "gps_l1_ca_dll_pll_tracking_cc.h"
|
||||
#include "dll_pll_veml_tracking.h"
|
||||
#include <string>
|
||||
|
||||
class ConfigurationInterface;
|
||||
|
|
@ -93,11 +94,13 @@ public:
|
|||
|
||||
private:
|
||||
gps_l1_ca_dll_pll_tracking_cc_sptr tracking_;
|
||||
dll_pll_veml_tracking_sptr tracking_unified_;
|
||||
size_t item_size_;
|
||||
unsigned int channel_;
|
||||
std::string role_;
|
||||
unsigned int in_streams_;
|
||||
unsigned int out_streams_;
|
||||
bool unified_;
|
||||
};
|
||||
|
||||
#endif // GNSS_SDR_GPS_L1_CA_DLL_PLL_TRACKING_H_
|
||||
|
|
|
|||
|
|
@ -19,7 +19,7 @@
|
|||
if(ENABLE_CUDA)
|
||||
set(OPT_TRACKING_BLOCKS ${OPT_TRACKING_BLOCKS} gps_l1_ca_dll_pll_tracking_gpu_cc.cc)
|
||||
set(OPT_TRACKING_INCLUDES ${OPT_TRACKING_INCLUDES} ${CUDA_INCLUDE_DIRS})
|
||||
set(OPT_TRACKING_LIBRARIES ${OPT_TRACKING_LIBRARIES} ${CUDA_LIBRARIES})
|
||||
set(OPT_TRACKING_LIBRARIES ${OPT_TRACKING_LIBRARIES} ${CUDA_LIBRARIES})
|
||||
endif(ENABLE_CUDA)
|
||||
|
||||
if(ENABLE_FPGA)
|
||||
|
|
@ -42,7 +42,8 @@ set(TRACKING_GR_BLOCKS_SOURCES
|
|||
glonass_l2_ca_dll_pll_tracking_cc.cc
|
||||
glonass_l2_ca_dll_pll_c_aid_tracking_cc.cc
|
||||
glonass_l2_ca_dll_pll_c_aid_tracking_sc.cc
|
||||
${OPT_TRACKING_BLOCKS}
|
||||
dll_pll_veml_tracking.cc
|
||||
${OPT_TRACKING_BLOCKS}
|
||||
)
|
||||
|
||||
include_directories(
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,230 @@
|
|||
/*!
|
||||
* \file dll_pll_veml_tracking.h
|
||||
* \brief Implementation of a code DLL + carrier PLL tracking block.
|
||||
* \author Antonio Ramos, 2018 antonio.ramosdet(at)gmail.com
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* 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 <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef GNSS_SDR_DLL_PLL_VEML_TRACKING_H
|
||||
#define GNSS_SDR_DLL_PLL_VEML_TRACKING_H
|
||||
|
||||
#include "gnss_synchro.h"
|
||||
#include "tracking_2nd_DLL_filter.h"
|
||||
#include "tracking_2nd_PLL_filter.h"
|
||||
#include "cpu_multicorrelator_real_codes.h"
|
||||
#include <gnuradio/block.h>
|
||||
#include <fstream>
|
||||
#include <string>
|
||||
|
||||
|
||||
class dll_pll_veml_tracking;
|
||||
|
||||
typedef boost::shared_ptr<dll_pll_veml_tracking> dll_pll_veml_tracking_sptr;
|
||||
|
||||
dll_pll_veml_tracking_sptr dll_pll_veml_make_tracking(double fs_in, unsigned int vector_length,
|
||||
bool dump, std::string dump_filename,
|
||||
float pll_bw_hz, float dll_bw_hz,
|
||||
float pll_bw_narrow_hz, float dll_bw_narrow_hz,
|
||||
float early_late_space_chips, float very_early_late_space_chips,
|
||||
float early_late_space_narrow_chips,
|
||||
float very_early_late_space_narrow_chips,
|
||||
int extend_correlation_symbols, bool track_pilot,
|
||||
char system, char signal[3]);
|
||||
|
||||
/*!
|
||||
* \brief This class implements a code DLL + carrier PLL tracking block.
|
||||
*/
|
||||
class dll_pll_veml_tracking : public gr::block
|
||||
{
|
||||
public:
|
||||
~dll_pll_veml_tracking();
|
||||
|
||||
void set_channel(unsigned int 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 dll_pll_veml_tracking_sptr dll_pll_veml_make_tracking(double fs_in, unsigned int vector_length,
|
||||
bool dump, std::string dump_filename,
|
||||
float pll_bw_hz, float dll_bw_hz, float pll_bw_narrow_hz,
|
||||
float dll_bw_narrow_hz, float early_late_space_chips,
|
||||
float very_early_late_space_chips, float early_late_space_narrow_chips,
|
||||
float very_early_late_space_narrow_chips,
|
||||
int extend_correlation_symbols, bool track_pilot,
|
||||
char system, char signal[3]);
|
||||
|
||||
dll_pll_veml_tracking(double fs_in, unsigned int vector_length,
|
||||
bool dump,
|
||||
std::string dump_filename,
|
||||
float pll_bw_hz,
|
||||
float dll_bw_hz,
|
||||
float pll_bw_narrow_hz,
|
||||
float dll_bw_narrow_hz,
|
||||
float early_late_space_chips,
|
||||
float very_early_late_space_chips,
|
||||
float early_late_space_narrow_chips,
|
||||
float very_early_late_space_narrow_chips,
|
||||
int extend_correlation_symbols,
|
||||
bool track_pilot,
|
||||
char system, char signal[3]);
|
||||
|
||||
bool cn0_and_tracking_lock_status();
|
||||
bool acquire_secondary();
|
||||
void do_correlation_step(const gr_complex *input_samples);
|
||||
void run_dll_pll();
|
||||
void update_tracking_vars();
|
||||
void clear_tracking_vars();
|
||||
void save_correlation_results();
|
||||
void log_data(bool integrating);
|
||||
int save_matfile();
|
||||
|
||||
// tracking configuration vars
|
||||
bool d_dump;
|
||||
bool d_veml;
|
||||
bool d_cloop;
|
||||
unsigned int d_vector_length;
|
||||
unsigned int d_channel;
|
||||
double d_fs_in;
|
||||
Gnss_Synchro *d_acquisition_gnss_synchro;
|
||||
|
||||
//Signal parameters
|
||||
bool d_secondary;
|
||||
bool interchange_iq;
|
||||
double d_signal_carrier_freq;
|
||||
double d_code_period;
|
||||
double d_code_chip_rate;
|
||||
unsigned int d_secondary_code_length;
|
||||
unsigned int d_code_length_chips;
|
||||
unsigned int d_code_samples_per_chip; // All signals have 1 sample per chip code except Gal. E1 which has 2 (CBOC disabled) or 12 (CBOC enabled)
|
||||
int d_symbols_per_bit;
|
||||
std::string systemName;
|
||||
std::string signal_type;
|
||||
std::string *d_secondary_code_string;
|
||||
|
||||
//tracking state machine
|
||||
int d_state;
|
||||
bool d_synchonizing;
|
||||
//Integration period in samples
|
||||
int d_correlation_length_ms;
|
||||
int d_n_correlator_taps;
|
||||
float d_early_late_spc_chips;
|
||||
float d_very_early_late_spc_chips;
|
||||
float d_early_late_spc_narrow_chips;
|
||||
float d_very_early_late_spc_narrow_chips;
|
||||
|
||||
float *d_tracking_code;
|
||||
float *d_data_code;
|
||||
float *d_local_code_shift_chips;
|
||||
float *d_prompt_data_shift;
|
||||
cpu_multicorrelator_real_codes multicorrelator_cpu;
|
||||
cpu_multicorrelator_real_codes correlator_data_cpu; //for data channel
|
||||
/* TODO: currently the multicorrelator does not support adding extra correlator
|
||||
with different local code, thus we need extra multicorrelator instance.
|
||||
Implement this functionality inside multicorrelator class
|
||||
as an enhancement to increase the performance
|
||||
*/
|
||||
gr_complex *d_correlator_outs;
|
||||
gr_complex *d_Very_Early;
|
||||
gr_complex *d_Early;
|
||||
gr_complex *d_Prompt;
|
||||
gr_complex *d_Late;
|
||||
gr_complex *d_Very_Late;
|
||||
|
||||
bool d_enable_extended_integration;
|
||||
int d_extend_correlation_symbols;
|
||||
int d_extend_correlation_symbols_count;
|
||||
int d_current_symbol;
|
||||
|
||||
gr_complex d_VE_accu;
|
||||
gr_complex d_E_accu;
|
||||
gr_complex d_P_accu;
|
||||
gr_complex d_L_accu;
|
||||
gr_complex d_VL_accu;
|
||||
gr_complex d_last_prompt;
|
||||
|
||||
bool d_track_pilot;
|
||||
gr_complex *d_Prompt_Data;
|
||||
|
||||
double d_code_phase_step_chips;
|
||||
double d_carrier_phase_step_rad;
|
||||
// remaining code phase and carrier phase between tracking loops
|
||||
double d_rem_code_phase_samples;
|
||||
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;
|
||||
|
||||
// tracking parameters
|
||||
float d_dll_bw_hz;
|
||||
float d_pll_bw_hz;
|
||||
float d_dll_bw_narrow_hz;
|
||||
float d_pll_bw_narrow_hz;
|
||||
// tracking vars
|
||||
double d_carr_error_hz;
|
||||
double d_carr_error_filt_hz;
|
||||
double d_code_error_chips;
|
||||
double d_code_error_filt_chips;
|
||||
double d_K_blk_samples;
|
||||
double d_code_freq_chips;
|
||||
double d_carrier_doppler_hz;
|
||||
double d_acc_carrier_phase_rad;
|
||||
double d_rem_code_phase_chips;
|
||||
double d_code_phase_samples;
|
||||
double T_chip_seconds;
|
||||
double T_prn_seconds;
|
||||
double T_prn_samples;
|
||||
double K_blk_samples;
|
||||
// PRN period in samples
|
||||
int d_current_prn_length_samples;
|
||||
// processing samples counters
|
||||
unsigned long int d_sample_counter;
|
||||
unsigned long int d_acq_sample_stamp;
|
||||
|
||||
// CN0 estimation and lock detector
|
||||
int d_cn0_estimation_counter;
|
||||
int d_carrier_lock_fail_counter;
|
||||
double d_carrier_lock_test;
|
||||
double d_CN0_SNV_dB_Hz;
|
||||
double d_carrier_lock_threshold;
|
||||
std::deque<gr_complex> d_Prompt_buffer_deque;
|
||||
gr_complex *d_Prompt_buffer;
|
||||
|
||||
// file dump
|
||||
std::string d_dump_filename;
|
||||
std::ofstream d_dump_file;
|
||||
};
|
||||
|
||||
#endif // GNSS_SDR_DLL_PLL_VEML_TRACKING_H
|
||||
|
|
@ -122,7 +122,7 @@ bool cpu_multicorrelator_real_codes::Carrier_wipeoff_multicorrelator_resampler(
|
|||
lv_32fc_t phase_offset_as_complex[1];
|
||||
phase_offset_as_complex[0] = lv_cmake(std::cos(rem_carrier_phase_in_rad), -std::sin(rem_carrier_phase_in_rad));
|
||||
// call VOLK_GNSSSDR kernel
|
||||
volk_gnsssdr_32fc_32f_rotator_dot_prod_32fc_xn(d_corr_out, d_sig_in, std::exp(lv_32fc_t(0, -phase_step_rad)), phase_offset_as_complex, (const float**)d_local_codes_resampled, d_n_correlators, signal_length_samples);
|
||||
volk_gnsssdr_32fc_32f_rotator_dot_prod_32fc_xn(d_corr_out, d_sig_in, std::exp(lv_32fc_t(0.0, -phase_step_rad)), phase_offset_as_complex, const_cast<const float**>(d_local_codes_resampled), d_n_correlators, signal_length_samples);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -67,20 +67,20 @@
|
|||
*/
|
||||
float cn0_svn_estimator(gr_complex* Prompt_buffer, int length, long fs_in, double code_length)
|
||||
{
|
||||
double SNR = 0;
|
||||
double SNR_dB_Hz = 0;
|
||||
double Psig = 0;
|
||||
double Ptot = 0;
|
||||
double SNR = 0.0;
|
||||
double SNR_dB_Hz = 0.0;
|
||||
double Psig = 0.0;
|
||||
double Ptot = 0.0;
|
||||
for (int i = 0; i < length; i++)
|
||||
{
|
||||
Psig += std::abs(static_cast<double>(Prompt_buffer[i].real()));
|
||||
Ptot += static_cast<double>(Prompt_buffer[i].imag()) * static_cast<double>(Prompt_buffer[i].imag()) + static_cast<double>(Prompt_buffer[i].real()) * static_cast<double>(Prompt_buffer[i].real());
|
||||
}
|
||||
Psig = Psig / static_cast<double>(length);
|
||||
Psig /= static_cast<double>(length);
|
||||
Psig = Psig * Psig;
|
||||
Ptot = Ptot / static_cast<double>(length);
|
||||
Ptot /= static_cast<double>(length);
|
||||
SNR = Psig / (Ptot - Psig);
|
||||
SNR_dB_Hz = 10 * log10(SNR) + 10 * log10(static_cast<double>(fs_in) / 2) - 10 * log10(code_length);
|
||||
SNR_dB_Hz = 10.0 * log10(SNR) + 10.0 * log10(static_cast<double>(fs_in) / 2.0) - 10.0 * log10(code_length);
|
||||
return static_cast<float>(SNR_dB_Hz);
|
||||
}
|
||||
|
||||
|
|
@ -96,10 +96,10 @@ float cn0_svn_estimator(gr_complex* Prompt_buffer, int length, long fs_in, doubl
|
|||
*/
|
||||
float carrier_lock_detector(gr_complex* Prompt_buffer, int length)
|
||||
{
|
||||
float tmp_sum_I = 0;
|
||||
float tmp_sum_Q = 0;
|
||||
float NBD = 0;
|
||||
float NBP = 0;
|
||||
float tmp_sum_I = 0.0;
|
||||
float tmp_sum_Q = 0.0;
|
||||
float NBD = 0.0;
|
||||
float NBP = 0.0;
|
||||
for (int i = 0; i < length; i++)
|
||||
{
|
||||
tmp_sum_I += Prompt_buffer[i].real();
|
||||
|
|
|
|||
|
|
@ -41,11 +41,10 @@
|
|||
void Tracking_2nd_DLL_filter::calculate_lopp_coef(float* tau1, float* tau2, float lbw, float zeta, float k)
|
||||
{
|
||||
// Solve natural frequency
|
||||
float Wn;
|
||||
Wn = lbw * 8 * zeta / (4 * zeta * zeta + 1);
|
||||
float Wn = lbw * 8.0 * zeta / (4.0 * zeta * zeta + 1.0);
|
||||
// solve for t1 & t2
|
||||
*tau1 = k / (Wn * Wn);
|
||||
*tau2 = (2.0 * zeta) / Wn;
|
||||
*tau2 = 2.0 * zeta / Wn;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -67,9 +66,7 @@ void Tracking_2nd_DLL_filter::initialize()
|
|||
|
||||
float Tracking_2nd_DLL_filter::get_code_nco(float DLL_discriminator)
|
||||
{
|
||||
float code_nco;
|
||||
code_nco = d_old_code_nco + (d_tau2_code / d_tau1_code) * (DLL_discriminator - d_old_code_error) + (DLL_discriminator + d_old_code_error) * (d_pdi_code / (2 * d_tau1_code));
|
||||
//code_nco = d_old_code_nco + (d_tau2_code/d_tau1_code)*(DLL_discriminator - d_old_code_error) + DLL_discriminator * (d_pdi_code/d_tau1_code);
|
||||
float code_nco = d_old_code_nco + (d_tau2_code / d_tau1_code) * (DLL_discriminator - d_old_code_error) + (DLL_discriminator + d_old_code_error) * (d_pdi_code / (2.0 * d_tau1_code));
|
||||
d_old_code_nco = code_nco;
|
||||
d_old_code_error = DLL_discriminator; //[chips]
|
||||
return code_nco;
|
||||
|
|
|
|||
|
|
@ -49,13 +49,13 @@ class Tracking_2nd_DLL_filter
|
|||
{
|
||||
private:
|
||||
// PLL filter parameters
|
||||
float d_tau1_code = 0;
|
||||
float d_tau2_code = 0;
|
||||
float d_pdi_code = 0;
|
||||
float d_dllnoisebandwidth = 0;
|
||||
float d_dlldampingratio = 0;
|
||||
float d_old_code_error = 0;
|
||||
float d_old_code_nco = 0;
|
||||
float d_tau1_code = 0.0;
|
||||
float d_tau2_code = 0.0;
|
||||
float d_pdi_code = 0.0;
|
||||
float d_dllnoisebandwidth = 0.0;
|
||||
float d_dlldampingratio = 0.0;
|
||||
float d_old_code_error = 0.0;
|
||||
float d_old_code_nco = 0.0;
|
||||
void calculate_lopp_coef(float* tau1, float* tau2, float lbw, float zeta, float k);
|
||||
|
||||
public:
|
||||
|
|
|
|||
|
|
@ -40,11 +40,10 @@
|
|||
void Tracking_2nd_PLL_filter::calculate_lopp_coef(float* tau1, float* tau2, float lbw, float zeta, float k)
|
||||
{
|
||||
// Solve natural frequency
|
||||
float Wn;
|
||||
Wn = lbw * 8 * zeta / (4 * zeta * zeta + 1);
|
||||
float Wn = lbw * 8.0 * zeta / (4.0 * zeta * zeta + 1.0);
|
||||
// solve for t1 & t2
|
||||
*tau1 = k / (Wn * Wn);
|
||||
*tau2 = (2.0 * zeta) / Wn;
|
||||
*tau2 = 2.0 * zeta / Wn;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -71,8 +70,7 @@ void Tracking_2nd_PLL_filter::initialize()
|
|||
*/
|
||||
float Tracking_2nd_PLL_filter::get_carrier_nco(float PLL_discriminator)
|
||||
{
|
||||
float carr_nco;
|
||||
carr_nco = d_old_carr_nco + (d_tau2_carr / d_tau1_carr) * (PLL_discriminator - d_old_carr_error) + (PLL_discriminator + d_old_carr_error) * (d_pdi_carr / (2 * d_tau1_carr));
|
||||
float carr_nco = d_old_carr_nco + (d_tau2_carr / d_tau1_carr) * (PLL_discriminator - d_old_carr_error) + (PLL_discriminator + d_old_carr_error) * (d_pdi_carr / (2.0 * d_tau1_carr));
|
||||
//carr_nco = d_old_carr_nco + (d_tau2_carr/d_tau1_carr)*(PLL_discriminator - d_old_carr_error) + PLL_discriminator * (d_pdi_carr/d_tau1_carr);
|
||||
d_old_carr_nco = carr_nco;
|
||||
d_old_carr_error = PLL_discriminator;
|
||||
|
|
|
|||
|
|
@ -48,15 +48,15 @@ class Tracking_2nd_PLL_filter
|
|||
{
|
||||
private:
|
||||
// PLL filter parameters
|
||||
float d_tau1_carr = 0;
|
||||
float d_tau2_carr = 0;
|
||||
float d_pdi_carr = 0;
|
||||
float d_tau1_carr = 0.0;
|
||||
float d_tau2_carr = 0.0;
|
||||
float d_pdi_carr = 0.0;
|
||||
|
||||
float d_pllnoisebandwidth = 0;
|
||||
float d_plldampingratio = 0;
|
||||
float d_pllnoisebandwidth = 0.0;
|
||||
float d_plldampingratio = 0.0;
|
||||
|
||||
float d_old_carr_error = 0;
|
||||
float d_old_carr_nco = 0;
|
||||
float d_old_carr_error = 0.0;
|
||||
float d_old_carr_nco = 0.0;
|
||||
|
||||
void calculate_lopp_coef(float* tau1, float* tau2, float lbw, float zeta, float k);
|
||||
|
||||
|
|
|
|||
|
|
@ -83,7 +83,7 @@ double pll_cloop_two_quadrant_atan(gr_complex prompt_s1)
|
|||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
return 0.0;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -107,7 +107,7 @@ double dll_nc_e_minus_l_normalized(gr_complex early_s1, gr_complex late_s1)
|
|||
}
|
||||
else
|
||||
{
|
||||
return 0.5 * (P_early - P_late) / ((P_early + P_late));
|
||||
return 0.5 * (P_early - P_late) / (P_early + P_late);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -131,6 +131,6 @@ double dll_nc_vemlp_normalized(gr_complex very_early_s1, gr_complex early_s1, gr
|
|||
}
|
||||
else
|
||||
{
|
||||
return (P_early - P_late) / ((P_early + P_late));
|
||||
return (P_early - P_late) / (P_early + P_late);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -37,9 +37,6 @@
|
|||
#include <glog/logging.h>
|
||||
|
||||
|
||||
#define MAX_LOOP_ORDER 3
|
||||
#define MAX_HISTORY_LENGTH 4
|
||||
|
||||
Tracking_loop_filter::Tracking_loop_filter(float update_interval,
|
||||
float noise_bandwidth,
|
||||
int loop_order,
|
||||
|
|
@ -50,8 +47,8 @@ Tracking_loop_filter::Tracking_loop_filter(float update_interval,
|
|||
d_noise_bandwidth(noise_bandwidth),
|
||||
d_update_interval(update_interval)
|
||||
{
|
||||
d_inputs.resize(MAX_HISTORY_LENGTH, 0.0);
|
||||
d_outputs.resize(MAX_HISTORY_LENGTH, 0.0);
|
||||
d_inputs.resize(MAX_LOOP_HISTORY_LENGTH, 0.0);
|
||||
d_outputs.resize(MAX_LOOP_HISTORY_LENGTH, 0.0);
|
||||
update_coefficients();
|
||||
}
|
||||
|
||||
|
|
@ -62,8 +59,8 @@ Tracking_loop_filter::Tracking_loop_filter()
|
|||
d_noise_bandwidth(15.0),
|
||||
d_update_interval(0.001)
|
||||
{
|
||||
d_inputs.resize(MAX_HISTORY_LENGTH, 0.0);
|
||||
d_outputs.resize(MAX_HISTORY_LENGTH, 0.0);
|
||||
d_inputs.resize(MAX_LOOP_HISTORY_LENGTH, 0.0);
|
||||
d_outputs.resize(MAX_LOOP_HISTORY_LENGTH, 0.0);
|
||||
update_coefficients();
|
||||
}
|
||||
|
||||
|
|
@ -75,12 +72,12 @@ Tracking_loop_filter::~Tracking_loop_filter()
|
|||
float Tracking_loop_filter::apply(float current_input)
|
||||
{
|
||||
// Now apply the filter coefficients:
|
||||
float result = 0;
|
||||
float result = 0.0;
|
||||
|
||||
// Hanlde the old outputs first:
|
||||
for (unsigned int ii = 0; ii < d_output_coefficients.size(); ++ii)
|
||||
{
|
||||
result += d_output_coefficients[ii] * d_outputs[(d_current_index + ii) % MAX_HISTORY_LENGTH];
|
||||
result += d_output_coefficients[ii] * d_outputs[(d_current_index + ii) % MAX_LOOP_HISTORY_LENGTH];
|
||||
}
|
||||
|
||||
// Now update the index to handle the inputs.
|
||||
|
|
@ -93,7 +90,7 @@ float Tracking_loop_filter::apply(float current_input)
|
|||
d_current_index--;
|
||||
if (d_current_index < 0)
|
||||
{
|
||||
d_current_index += MAX_HISTORY_LENGTH;
|
||||
d_current_index += MAX_LOOP_HISTORY_LENGTH;
|
||||
}
|
||||
|
||||
d_inputs[d_current_index] = current_input;
|
||||
|
|
@ -101,7 +98,7 @@ float Tracking_loop_filter::apply(float current_input)
|
|||
|
||||
for (unsigned int ii = 0; ii < d_input_coefficients.size(); ++ii)
|
||||
{
|
||||
result += d_input_coefficients[ii] * d_inputs[(d_current_index + ii) % MAX_HISTORY_LENGTH];
|
||||
result += d_input_coefficients[ii] * d_inputs[(d_current_index + ii) % MAX_LOOP_HISTORY_LENGTH];
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -122,7 +119,7 @@ void Tracking_loop_filter::update_coefficients(void)
|
|||
float wn;
|
||||
float T = d_update_interval;
|
||||
|
||||
float zeta = 1 / std::sqrt(2);
|
||||
float zeta = 1.0 / std::sqrt(2.0);
|
||||
|
||||
// The following is based on the bilinear transform approximation of
|
||||
// the analog integrator. The loop format is from Kaplan & Hegarty
|
||||
|
|
@ -146,7 +143,7 @@ void Tracking_loop_filter::update_coefficients(void)
|
|||
d_input_coefficients[1] = g1 * T / 2.0;
|
||||
|
||||
d_output_coefficients.resize(1);
|
||||
d_output_coefficients[0] = 1;
|
||||
d_output_coefficients[0] = 1.0;
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -157,28 +154,28 @@ void Tracking_loop_filter::update_coefficients(void)
|
|||
}
|
||||
break;
|
||||
case 2:
|
||||
wn = d_noise_bandwidth * (8 * zeta) / (4 * zeta * zeta + 1);
|
||||
wn = d_noise_bandwidth * (8.0 * zeta) / (4.0 * zeta * zeta + 1.0);
|
||||
g1 = wn * wn;
|
||||
g2 = wn * 2 * zeta;
|
||||
g2 = wn * 2.0 * zeta;
|
||||
if (d_include_last_integrator)
|
||||
{
|
||||
d_input_coefficients.resize(3);
|
||||
d_input_coefficients[0] = T / 2 * (g1 * T / 2 + g2);
|
||||
d_input_coefficients[1] = T * T / 2 * g1;
|
||||
d_input_coefficients[2] = T / 2 * (g1 * T / 2 - g2);
|
||||
d_input_coefficients[0] = T / 2.0 * (g1 * T / 2.0 + g2);
|
||||
d_input_coefficients[1] = T * T / 2.0 * g1;
|
||||
d_input_coefficients[2] = T / 2.0 * (g1 * T / 2.0 - g2);
|
||||
|
||||
d_output_coefficients.resize(2);
|
||||
d_output_coefficients[0] = 2;
|
||||
d_output_coefficients[1] = -1;
|
||||
d_output_coefficients[0] = 2.0;
|
||||
d_output_coefficients[1] = -1.0;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_input_coefficients.resize(2);
|
||||
d_input_coefficients[0] = (g1 * T / 2.0 + g2);
|
||||
d_input_coefficients[1] = g1 * T / 2 - g2;
|
||||
d_input_coefficients[1] = g1 * T / 2.0 - g2;
|
||||
|
||||
d_output_coefficients.resize(1);
|
||||
d_output_coefficients[0] = 1;
|
||||
d_output_coefficients[0] = 1.0;
|
||||
}
|
||||
break;
|
||||
|
||||
|
|
@ -193,27 +190,27 @@ void Tracking_loop_filter::update_coefficients(void)
|
|||
if (d_include_last_integrator)
|
||||
{
|
||||
d_input_coefficients.resize(4);
|
||||
d_input_coefficients[0] = T / 2 * (g3 + T / 2 * (g2 + T / 2 * g1));
|
||||
d_input_coefficients[1] = T / 2 * (-g3 + T / 2 * (g2 + 3 * T / 2 * g1));
|
||||
d_input_coefficients[2] = T / 2 * (-g3 - T / 2 * (g2 - 3 * T / 2 * g1));
|
||||
d_input_coefficients[3] = T / 2 * (g3 - T / 2 * (g2 - T / 2 * g1));
|
||||
d_input_coefficients[0] = T / 2.0 * (g3 + T / 2.0 * (g2 + T / 2.0 * g1));
|
||||
d_input_coefficients[1] = T / 2.0 * (-g3 + T / 2.0 * (g2 + 3.0 * T / 2.0 * g1));
|
||||
d_input_coefficients[2] = T / 2.0 * (-g3 - T / 2.0 * (g2 - 3.0 * T / 2.0 * g1));
|
||||
d_input_coefficients[3] = T / 2.0 * (g3 - T / 2.0 * (g2 - T / 2.0 * g1));
|
||||
|
||||
d_output_coefficients.resize(3);
|
||||
d_output_coefficients[0] = 3;
|
||||
d_output_coefficients[1] = -3;
|
||||
d_output_coefficients[2] = 1;
|
||||
d_output_coefficients[0] = 3.0;
|
||||
d_output_coefficients[1] = -3.0;
|
||||
d_output_coefficients[2] = 1.0;
|
||||
}
|
||||
else
|
||||
{
|
||||
d_input_coefficients.resize(3);
|
||||
d_input_coefficients[0] = g3 + T / 2 * (g2 + T / 2 * g1);
|
||||
d_input_coefficients[1] = g1 * T * T / 2 - 2 * g3;
|
||||
d_input_coefficients[2] = g3 + T / 2 * (-g2 + T / 2 * g1);
|
||||
d_input_coefficients[0] = g3 + T / 2.0 * (g2 + T / 2.0 * g1);
|
||||
d_input_coefficients[1] = g1 * T * T / 2.0 - 2.0 * g3;
|
||||
d_input_coefficients[2] = g3 + T / 2.0 * (-g2 + T / 2.0 * g1);
|
||||
|
||||
|
||||
d_output_coefficients.resize(2);
|
||||
d_output_coefficients[0] = 2;
|
||||
d_output_coefficients[1] = -1;
|
||||
d_output_coefficients[0] = 2.0;
|
||||
d_output_coefficients[1] = -1.0;
|
||||
}
|
||||
break;
|
||||
};
|
||||
|
|
@ -254,7 +251,7 @@ bool Tracking_loop_filter::get_include_last_integrator(void) const
|
|||
|
||||
void Tracking_loop_filter::set_order(int loop_order)
|
||||
{
|
||||
if (loop_order < 1 || loop_order > MAX_LOOP_ORDER)
|
||||
if (loop_order < 1 or loop_order > MAX_LOOP_ORDER)
|
||||
{
|
||||
LOG(ERROR) << "Ignoring attempt to set loop order to " << loop_order
|
||||
<< ". Maximum allowed order is: " << MAX_LOOP_ORDER
|
||||
|
|
@ -274,7 +271,7 @@ int Tracking_loop_filter::get_order(void) const
|
|||
|
||||
void Tracking_loop_filter::initialize(float initial_output)
|
||||
{
|
||||
d_inputs.assign(MAX_HISTORY_LENGTH, 0.0);
|
||||
d_outputs.assign(MAX_HISTORY_LENGTH, initial_output);
|
||||
d_current_index = MAX_HISTORY_LENGTH - 1;
|
||||
d_inputs.assign(MAX_LOOP_HISTORY_LENGTH, 0.0);
|
||||
d_outputs.assign(MAX_LOOP_HISTORY_LENGTH, initial_output);
|
||||
d_current_index = MAX_LOOP_HISTORY_LENGTH - 1;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -33,6 +33,8 @@
|
|||
|
||||
#ifndef GNSS_SDR_TRACKING_LOOP_FILTER_H_
|
||||
#define GNSS_SDR_TRACKING_LOOP_FILTER_H_
|
||||
#define MAX_LOOP_ORDER 3
|
||||
#define MAX_LOOP_HISTORY_LENGTH 4
|
||||
|
||||
#include <vector>
|
||||
|
||||
|
|
|
|||
|
|
@ -544,7 +544,7 @@ void GNSSFlowgraph::set_signals_list()
|
|||
configuration_->property("Channels_1B.count", 0) +
|
||||
configuration_->property("Channels_5X.count", 0) +
|
||||
configuration_->property("Channels_1G.count", 0) +
|
||||
configuration_->property("Channels_2G.count", 0) +
|
||||
configuration_->property("Channels_2G.count", 0) +
|
||||
configuration_->property("Channels_5X.count", 0) +
|
||||
configuration_->property("Channels_L5.count", 0);
|
||||
|
||||
|
|
@ -723,8 +723,8 @@ void GNSSFlowgraph::set_signals_list()
|
|||
if (configuration_->property("Channels_1G.count", 0) > 0)
|
||||
{
|
||||
/*
|
||||
* Loop to create the list of GLONASS L1 C/A signals
|
||||
*/
|
||||
* Loop to create the list of GLONASS L1 C/A signals
|
||||
*/
|
||||
for (available_gnss_prn_iter = available_glonass_prn.begin();
|
||||
available_gnss_prn_iter != available_glonass_prn.end();
|
||||
available_gnss_prn_iter++)
|
||||
|
|
@ -738,8 +738,8 @@ void GNSSFlowgraph::set_signals_list()
|
|||
if (configuration_->property("Channels_2G.count", 0) > 0)
|
||||
{
|
||||
/*
|
||||
* Loop to create the list of GLONASS L2 C/A signals
|
||||
*/
|
||||
* Loop to create the list of GLONASS L2 C/A signals
|
||||
*/
|
||||
for (available_gnss_prn_iter = available_glonass_prn.begin();
|
||||
available_gnss_prn_iter != available_glonass_prn.end();
|
||||
available_gnss_prn_iter++)
|
||||
|
|
|
|||
|
|
@ -36,6 +36,7 @@
|
|||
#include "GPS_CNAV.h"
|
||||
#include "MATH_CONSTANTS.h"
|
||||
#include <cstdint>
|
||||
#include <string>
|
||||
|
||||
|
||||
// Physical constants
|
||||
|
|
@ -181,7 +182,11 @@ const int GPS_L5_SYMBOLS_PER_BIT = 2;
|
|||
const int GPS_L5_SAMPLES_PER_SYMBOL = 10;
|
||||
const int GPS_L5_CNAV_DATA_PAGE_SYMBOLS = 600;
|
||||
const int GPS_L5_CNAV_DATA_PAGE_DURATION_S = 6;
|
||||
const int GPS_L5_NH_CODE_LENGTH = 10;
|
||||
const int GPS_L5_NH_CODE[10] = {0, 0, 0, 0, 1, 1, 0, 1, 0, 1};
|
||||
const int GPS_L5i_NH_CODE_LENGTH = 10;
|
||||
const int GPS_L5i_NH_CODE[10] = {0, 0, 0, 0, 1, 1, 0, 1, 0, 1};
|
||||
const std::string GPS_L5i_NH_CODE_STR = "0000110101";
|
||||
const int GPS_L5q_NH_CODE_LENGTH = 20;
|
||||
const int GPS_L5q_NH_CODE[20] = {0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0};
|
||||
const std::string GPS_L5q_NH_CODE_STR = "00000100110101001110";
|
||||
|
||||
#endif /* GNSS_SDR_GPS_L5_H_ */
|
||||
|
|
|
|||
|
|
@ -35,24 +35,24 @@ bool tracking_dump_reader::read_binary_obs()
|
|||
{
|
||||
try
|
||||
{
|
||||
d_dump_file.read(reinterpret_cast<char *>(&abs_VE), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&abs_E), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&abs_P), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&abs_L), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&abs_VL), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&prompt_I), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&prompt_Q), sizeof(float));
|
||||
|
||||
d_dump_file.read(reinterpret_cast<char *>(&PRN_start_sample_count), sizeof(unsigned long int));
|
||||
|
||||
d_dump_file.read(reinterpret_cast<char *>(&acc_carrier_phase_rad), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carrier_doppler_hz), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&code_freq_chips), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carr_error_hz), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carr_error_filt_hz), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&code_error_chips), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&code_error_filt_chips), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&CN0_SNV_dB_Hz), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carrier_lock_test), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&aux1), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&acc_carrier_phase_rad), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carrier_doppler_hz), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&code_freq_chips), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carr_error_hz), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carr_error_filt_hz), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&code_error_chips), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&code_error_filt_chips), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&CN0_SNV_dB_Hz), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&carrier_lock_test), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&aux1), sizeof(float));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&aux2), sizeof(double));
|
||||
d_dump_file.read(reinterpret_cast<char *>(&PRN), sizeof(unsigned int));
|
||||
}
|
||||
|
|
@ -82,8 +82,8 @@ bool tracking_dump_reader::restart()
|
|||
long int tracking_dump_reader::num_epochs()
|
||||
{
|
||||
std::ifstream::pos_type size;
|
||||
int number_of_double_vars = 11;
|
||||
int number_of_float_vars = 5;
|
||||
int number_of_double_vars = 1;
|
||||
int number_of_float_vars = 17;
|
||||
int epoch_size_bytes = sizeof(unsigned long int) + sizeof(double) * number_of_double_vars +
|
||||
sizeof(float) * number_of_float_vars + sizeof(unsigned int);
|
||||
std::ifstream tmpfile(d_dump_filename.c_str(), std::ios::binary | std::ios::ate);
|
||||
|
|
|
|||
|
|
@ -45,10 +45,12 @@ public:
|
|||
bool open_obs_file(std::string out_file);
|
||||
|
||||
//tracking dump variables
|
||||
// EPR
|
||||
// VEPLVL
|
||||
float abs_VE;
|
||||
float abs_E;
|
||||
float abs_P;
|
||||
float abs_L;
|
||||
float abs_VL;
|
||||
// PROMPT I and Q (to analyze navigation symbols)
|
||||
float prompt_I;
|
||||
float prompt_Q;
|
||||
|
|
@ -56,26 +58,26 @@ public:
|
|||
unsigned long int PRN_start_sample_count;
|
||||
|
||||
// accumulated carrier phase
|
||||
double acc_carrier_phase_rad;
|
||||
float acc_carrier_phase_rad;
|
||||
|
||||
// carrier and code frequency
|
||||
double carrier_doppler_hz;
|
||||
double code_freq_chips;
|
||||
float carrier_doppler_hz;
|
||||
float code_freq_chips;
|
||||
|
||||
// PLL commands
|
||||
double carr_error_hz;
|
||||
double carr_error_filt_hz;
|
||||
float carr_error_hz;
|
||||
float carr_error_filt_hz;
|
||||
|
||||
// DLL commands
|
||||
double code_error_chips;
|
||||
double code_error_filt_chips;
|
||||
float code_error_chips;
|
||||
float code_error_filt_chips;
|
||||
|
||||
// CN0 and carrier lock test
|
||||
double CN0_SNV_dB_Hz;
|
||||
double carrier_lock_test;
|
||||
float CN0_SNV_dB_Hz;
|
||||
float carrier_lock_test;
|
||||
|
||||
// AUX vars (for debug purposes)
|
||||
double aux1;
|
||||
float aux1;
|
||||
double aux2;
|
||||
|
||||
unsigned int PRN;
|
||||
|
|
|
|||
|
|
@ -225,6 +225,10 @@ void GpsL1CADllPllTrackingTest::configure_receiver()
|
|||
config->set_property("Tracking_1C.pll_bw_hz", "20.0");
|
||||
config->set_property("Tracking_1C.dll_bw_hz", "2.0");
|
||||
config->set_property("Tracking_1C.early_late_space_chips", "0.5");
|
||||
config->set_property("Tracking_1C.pll_bw_narrow_hz", "20.0");
|
||||
config->set_property("Tracking_1C.dll_bw_narrow_hz", "2.0");
|
||||
config->set_property("Tracking_1C.early_late_space_narrow_chips", "0.5");
|
||||
config->set_property("Tracking_1C.unified", "true");
|
||||
config->set_property("Tracking_1C.extend_correlation_ms", "1");
|
||||
config->set_property("Tracking_1C.dump", "true");
|
||||
config->set_property("Tracking_1C.dump_filename", "./tracking_ch_");
|
||||
|
|
|
|||
|
|
@ -0,0 +1,84 @@
|
|||
% /*!
|
||||
% * \file dll_pll_vml_plot_sample.m
|
||||
% * \brief Read GNSS-SDR Tracking dump binary file using the provided
|
||||
% function and plot some internal variables
|
||||
% * \author Javier Arribas, 2011. jarribas(at)cttc.es
|
||||
% * \author Antonio Ramos, 2018. antonio.ramos(at)cttc.es
|
||||
% * -------------------------------------------------------------------------
|
||||
% *
|
||||
% * 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 <http://www.gnu.org/licenses/>.
|
||||
% *
|
||||
% * -------------------------------------------------------------------------
|
||||
% */
|
||||
close all;
|
||||
clear all;
|
||||
|
||||
if ~exist('dll_pll_veml_read_tracking_dump.m','file')
|
||||
addpath('./libs')
|
||||
end
|
||||
|
||||
samplingFreq = 5000000; %[Hz]
|
||||
coherent_integration_time_ms = 20; %[ms]
|
||||
channels = 5; % Number of channels
|
||||
first_channel = 0; % Number of the first channel
|
||||
|
||||
path = '/dump_dir/'; %% CHANGE THIS PATH
|
||||
|
||||
for N=1:1:channels
|
||||
tracking_log_path = [path 'track_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE track_ch BY YOUR dump_filename
|
||||
GNSS_tracking(N)= dll_pll_veml_read_tracking_dump(tracking_log_path);
|
||||
end
|
||||
|
||||
% GNSS-SDR format conversion to MATLAB GPS receiver
|
||||
|
||||
for N=1:1:channels
|
||||
trackResults(N).status = 'T'; %fake track
|
||||
trackResults(N).codeFreq = GNSS_tracking(N).code_freq_hz.';
|
||||
trackResults(N).carrFreq = GNSS_tracking(N).carrier_doppler_hz.';
|
||||
trackResults(N).dllDiscr = GNSS_tracking(N).code_error.';
|
||||
trackResults(N).dllDiscrFilt = GNSS_tracking(N).code_nco.';
|
||||
trackResults(N).pllDiscr = GNSS_tracking(N).carr_error.';
|
||||
trackResults(N).pllDiscrFilt = GNSS_tracking(N).carr_nco.';
|
||||
|
||||
trackResults(N).I_P = GNSS_tracking(N).P.';
|
||||
trackResults(N).Q_P = zeros(1,length(GNSS_tracking(N).P));
|
||||
|
||||
trackResults(N).I_VE = GNSS_tracking(N).VE.';
|
||||
trackResults(N).I_E = GNSS_tracking(N).E.';
|
||||
trackResults(N).I_L = GNSS_tracking(N).L.';
|
||||
trackResults(N).I_VL = GNSS_tracking(N).VL.';
|
||||
trackResults(N).Q_VE = zeros(1,length(GNSS_tracking(N).VE));
|
||||
trackResults(N).Q_E = zeros(1,length(GNSS_tracking(N).E));
|
||||
trackResults(N).Q_L = zeros(1,length(GNSS_tracking(N).L));
|
||||
trackResults(N).Q_VL = zeros(1,length(GNSS_tracking(N).VL));
|
||||
trackResults(N).data_I = GNSS_tracking(N).prompt_I.';
|
||||
trackResults(N).data_Q = GNSS_tracking(N).prompt_Q.';
|
||||
trackResults(N).PRN = GNSS_tracking(N).PRN.';
|
||||
trackResults(N).CNo = GNSS_tracking(N).CN0_SNV_dB_Hz.';
|
||||
|
||||
% Use original MATLAB tracking plot function
|
||||
settings.numberOfChannels = channels;
|
||||
settings.msToProcess = length(GNSS_tracking(N).E)*coherent_integration_time_ms;
|
||||
plotVEMLTracking(N,trackResults,settings)
|
||||
end
|
||||
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,153 @@
|
|||
% /*!
|
||||
% * \file dll_pll_veml_read_tracking_dump.m
|
||||
% * \brief Read GNSS-SDR Tracking dump binary file into MATLAB.
|
||||
% * \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
||||
% * -------------------------------------------------------------------------
|
||||
% *
|
||||
% * Copyright (C) 2010-2012 (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 <http://www.gnu.org/licenses/>.
|
||||
% *
|
||||
% * -------------------------------------------------------------------------
|
||||
% */
|
||||
|
||||
function [GNSS_tracking] = dll_pll_veml_read_tracking_dump (filename, count)
|
||||
%% usage: dll_pll_veml_read_tracking_dump (filename, [count])
|
||||
%%
|
||||
%% open GNSS-SDR tracking binary log file .dat and return the contents
|
||||
%%
|
||||
|
||||
m = nargchk (1,2,nargin);
|
||||
|
||||
num_float_vars = 17;
|
||||
num_unsigned_long_int_vars = 1;
|
||||
num_double_vars = 1;
|
||||
num_unsigned_int_vars = 1;
|
||||
|
||||
if(~isempty(strfind(computer('arch'), '64')))
|
||||
% 64-bit computer
|
||||
double_size_bytes = 8;
|
||||
unsigned_long_int_size_bytes = 8;
|
||||
float_size_bytes = 4;
|
||||
unsigned_int_size_bytes = 4;
|
||||
else
|
||||
double_size_bytes = 8;
|
||||
unsigned_long_int_size_bytes = 4;
|
||||
float_size_bytes = 4;
|
||||
unsigned_int_size_bytes = 4;
|
||||
end
|
||||
|
||||
skip_bytes_each_read = float_size_bytes * num_float_vars + unsigned_long_int_size_bytes * num_unsigned_long_int_vars + ...
|
||||
double_size_bytes * num_double_vars + num_unsigned_int_vars*unsigned_int_size_bytes;
|
||||
|
||||
bytes_shift = 0;
|
||||
|
||||
if (m)
|
||||
usage (m);
|
||||
end
|
||||
|
||||
if (nargin < 2)
|
||||
count = Inf;
|
||||
end
|
||||
%loops_counter = fread (f, count, 'uint32',4*12);
|
||||
f = fopen (filename, 'rb');
|
||||
if (f < 0)
|
||||
else
|
||||
v1 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v2 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v3 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v4 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v5 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v6 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v7 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next interleaved float
|
||||
v8 = fread (f, count, 'long', skip_bytes_each_read - unsigned_long_int_size_bytes);
|
||||
bytes_shift = bytes_shift + unsigned_long_int_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v9 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v10 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v11 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v12 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v13 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v14 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v15 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v16 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next interleaved float
|
||||
v17 = fread (f, count, 'float', skip_bytes_each_read - float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next float
|
||||
v18 = fread (f, count, 'float', skip_bytes_each_read-float_size_bytes);
|
||||
bytes_shift = bytes_shift + float_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next double
|
||||
v19 = fread (f, count, 'double', skip_bytes_each_read - double_size_bytes);
|
||||
bytes_shift = bytes_shift + double_size_bytes;
|
||||
fseek(f,bytes_shift,'bof'); % move to next unsigned int
|
||||
v20 = fread (f, count, 'uint', skip_bytes_each_read - unsigned_int_size_bytes);
|
||||
fclose (f);
|
||||
|
||||
GNSS_tracking.VE = v1;
|
||||
GNSS_tracking.E = v2;
|
||||
GNSS_tracking.P = v3;
|
||||
GNSS_tracking.L = v4;
|
||||
GNSS_tracking.VL = v5;
|
||||
GNSS_tracking.prompt_I = v6;
|
||||
GNSS_tracking.prompt_Q = v7;
|
||||
GNSS_tracking.PRN_start_sample = v8;
|
||||
GNSS_tracking.acc_carrier_phase_rad = v9;
|
||||
GNSS_tracking.carrier_doppler_hz = v10;
|
||||
GNSS_tracking.code_freq_hz = v11;
|
||||
GNSS_tracking.carr_error = v12;
|
||||
GNSS_tracking.carr_nco = v13;
|
||||
GNSS_tracking.code_error = v14;
|
||||
GNSS_tracking.code_nco = v15;
|
||||
GNSS_tracking.CN0_SNV_dB_Hz = v16;
|
||||
GNSS_tracking.carrier_lock_test = v17;
|
||||
GNSS_tracking.var1 = v18;
|
||||
GNSS_tracking.var2 = v19;
|
||||
GNSS_tracking.PRN = v20;
|
||||
end
|
||||
|
||||
|
|
@ -69,8 +69,8 @@ for channelNr = channelList
|
|||
timeAxisInSeconds = (1:4:settings.msToProcess)/1000;
|
||||
|
||||
%----- Discrete-Time Scatter Plot ---------------------------------
|
||||
plot(handles(1, 1), trackResults(channelNr).I_P,...
|
||||
trackResults(channelNr).Q_P, ...
|
||||
plot(handles(1, 1), trackResults(channelNr).data_I,...
|
||||
trackResults(channelNr).data_Q, ...
|
||||
'.');
|
||||
|
||||
grid (handles(1, 1));
|
||||
|
|
@ -80,8 +80,9 @@ for channelNr = channelList
|
|||
ylabel(handles(1, 1), 'Q prompt');
|
||||
|
||||
%----- Nav bits ---------------------------------------------------
|
||||
plot (handles(1, 2), timeAxisInSeconds, ...
|
||||
trackResults(channelNr).I_P);
|
||||
t = (1:length(trackResults(channelNr).data_I));
|
||||
plot (handles(1, 2), t, ...
|
||||
trackResults(channelNr).data_I);
|
||||
|
||||
grid (handles(1, 2));
|
||||
title (handles(1, 2), 'Bits of the navigation message');
|
||||
|
|
@ -89,7 +90,8 @@ for channelNr = channelList
|
|||
axis (handles(1, 2), 'tight');
|
||||
|
||||
%----- PLL discriminator unfiltered--------------------------------
|
||||
plot (handles(2, 1), timeAxisInSeconds, ...
|
||||
t = (1:length(trackResults(channelNr).pllDiscr));
|
||||
plot (handles(2, 1), t, ...
|
||||
trackResults(channelNr).pllDiscr, 'r');
|
||||
|
||||
grid (handles(2, 1));
|
||||
|
|
@ -99,7 +101,8 @@ for channelNr = channelList
|
|||
title (handles(2, 1), 'Raw PLL discriminator');
|
||||
|
||||
%----- Correlation ------------------------------------------------
|
||||
plot(handles(2, 2), timeAxisInSeconds, ...
|
||||
t = (1:length(trackResults(channelNr).I_VE));
|
||||
plot(handles(2, 2), t, ...
|
||||
[sqrt(trackResults(channelNr).I_VE.^2 + ...
|
||||
trackResults(channelNr).Q_VE.^2)', ...
|
||||
sqrt(trackResults(channelNr).I_E.^2 + ...
|
||||
|
|
@ -127,7 +130,8 @@ for channelNr = channelList
|
|||
set(hLegend, 'Interpreter', 'Latex');
|
||||
|
||||
%----- PLL discriminator filtered----------------------------------
|
||||
plot (handles(3, 1), timeAxisInSeconds, ...
|
||||
t = (1:length(trackResults(channelNr).pllDiscrFilt));
|
||||
plot (handles(3, 1), t, ...
|
||||
trackResults(channelNr).pllDiscrFilt, 'b');
|
||||
|
||||
grid (handles(3, 1));
|
||||
|
|
@ -137,7 +141,8 @@ for channelNr = channelList
|
|||
title (handles(3, 1), 'Filtered PLL discriminator');
|
||||
|
||||
%----- DLL discriminator unfiltered--------------------------------
|
||||
plot (handles(3, 2), timeAxisInSeconds, ...
|
||||
t = (1:length(trackResults(channelNr).dllDiscr));
|
||||
plot (handles(3, 2), t, ...
|
||||
trackResults(channelNr).dllDiscr, 'r');
|
||||
|
||||
grid (handles(3, 2));
|
||||
|
|
@ -147,7 +152,8 @@ for channelNr = channelList
|
|||
title (handles(3, 2), 'Raw DLL discriminator');
|
||||
|
||||
%----- DLL discriminator filtered----------------------------------
|
||||
plot (handles(3, 3), timeAxisInSeconds, ...
|
||||
t = (1:length(trackResults(channelNr).dllDiscrFilt));
|
||||
plot (handles(3, 3), t, ...
|
||||
trackResults(channelNr).dllDiscrFilt, 'b');
|
||||
|
||||
grid (handles(3, 3));
|
||||
|
|
|
|||
Loading…
Reference in New Issue