mirrors/gnss-sdr
1
0
Fork 0
mirror of https://github.com/gnss-sdr/gnss-sdr synced 2025-11-07 18:54:06 +00:00
Code Issues Releases Wiki Activity

Applying code formatting rules

Browse Source
This commit is contained in:
Carles Fernandez
2019-01-28 02:29:43 +01:00
parent fa19b2e6a4
commit c561d7e799
51 changed files with 1760 additions and 2508 deletions
Download Patch File Download Diff File Expand all files Collapse all files

149
src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking.cc
View File

@@ -35,17 +35,17 @@
*/
#include "dll_pll_veml_tracking.h"
#include "Beidou_B1I.h"
#include "GPS_L1_CA.h"
#include "GPS_L2C.h"
#include "GPS_L5.h"
#include "Galileo_E1.h"
#include "Galileo_E5a.h"
#include "Beidou_B1I.h"
#include "MATH_CONSTANTS.h"
#include "beidou_b1i_signal_processing.h"
#include "control_message_factory.h"
#include "galileo_e1_signal_processing.h"
#include "galileo_e5_signal_processing.h"
#include "beidou_b1i_signal_processing.h"
#include "gnss_sdr_create_directory.h"
#include "gps_l2c_signal.h"
#include "gps_l5_signal.h"
@@ -279,19 +279,19 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
systemName = "Beidou";
if (signal_type == "B1")
{
// GEO Satellites use different secondary code
d_signal_carrier_freq = BEIDOU_B1I_FREQ_HZ;
d_code_period = BEIDOU_B1I_CODE_PERIOD;
d_code_chip_rate = BEIDOU_B1I_CODE_RATE_HZ;
d_code_length_chips = static_cast<unsigned int>(BEIDOU_B1I_CODE_LENGTH_CHIPS);
d_symbols_per_bit = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT;
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = true;
trk_parameters.track_pilot = false;
interchange_iq = false;
d_secondary_code_length = static_cast<unsigned int>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
// GEO Satellites use different secondary code
d_signal_carrier_freq = BEIDOU_B1I_FREQ_HZ;
d_code_period = BEIDOU_B1I_CODE_PERIOD;
d_code_chip_rate = BEIDOU_B1I_CODE_RATE_HZ;
d_code_length_chips = static_cast<unsigned int>(BEIDOU_B1I_CODE_LENGTH_CHIPS);
d_symbols_per_bit = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT;
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = true;
trk_parameters.track_pilot = false;
interchange_iq = false;
d_secondary_code_length = static_cast<unsigned int>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
}
else
{
@@ -575,41 +575,40 @@ void dll_pll_veml_tracking::start_tracking()
{
beidou_b1i_code_gen_float(d_tracking_code, d_acquisition_gnss_synchro->PRN, 0);
// Update secondary code settings for geo satellites
if(d_acquisition_gnss_synchro->PRN > 0 and d_acquisition_gnss_synchro->PRN < 6)
if (d_acquisition_gnss_synchro->PRN > 0 and d_acquisition_gnss_synchro->PRN < 6)
{
d_symbols_per_bit = 2;
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
trk_parameters.track_pilot = false;
interchange_iq = false;
d_secondary_code_length = 0;
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_D2_SECONDARY_CODE_STR);
d_symbols_per_bit = 2;
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
trk_parameters.track_pilot = false;
interchange_iq = false;
d_secondary_code_length = 0;
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_D2_SECONDARY_CODE_STR);
// preamble bits to sampled symbols
d_preamble_length_symbols = 22;
d_preambles_symbols = static_cast<int32_t *>(volk_gnsssdr_malloc(22 * sizeof(int32_t), volk_gnsssdr_get_alignment()));
int32_t n = 0;
uint16_t preambles_bits[BEIDOU_B1I_PREAMBLE_LENGTH_BITS] = {1,1,1,0,0,0,1,0,0,1,0};
for (uint16_t preambles_bit : preambles_bits)
{
for (uint32_t j = 0; j < d_symbols_per_bit; j++)
{
if (preambles_bit == 1)
{
d_preambles_symbols[n] = 1;
}
else
{
d_preambles_symbols[n] = -1;
}
n++;
}
}
d_symbol_history.resize(22); // Change fixed buffer size
d_symbol_history.clear();
// preamble bits to sampled symbols
d_preamble_length_symbols = 22;
d_preambles_symbols = static_cast<int32_t *>(volk_gnsssdr_malloc(22 * sizeof(int32_t), volk_gnsssdr_get_alignment()));
int32_t n = 0;
uint16_t preambles_bits[BEIDOU_B1I_PREAMBLE_LENGTH_BITS] = {1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0};
for (uint16_t preambles_bit : preambles_bits)
{
for (uint32_t j = 0; j < d_symbols_per_bit; j++)
{
if (preambles_bit == 1)
{
d_preambles_symbols[n] = 1;
}
else
{
d_preambles_symbols[n] = -1;
}
n++;
}
}
d_symbol_history.resize(22); // Change fixed buffer size
d_symbol_history.clear();
}
}
multicorrelator_cpu.set_local_code_and_taps(d_code_samples_per_chip * d_code_length_chips, d_tracking_code, d_local_code_shift_chips);
@@ -732,7 +731,7 @@ bool dll_pll_veml_tracking::acquire_secondary()
return true;
}
return false;
return false;
}
@@ -746,29 +745,29 @@ bool dll_pll_veml_tracking::cn0_and_tracking_lock_status(double coh_integration_
d_cn0_estimation_counter++;
return true;
}
d_cn0_estimation_counter = 0;
// Code lock indicator
d_CN0_SNV_dB_Hz = cn0_svn_estimator(d_Prompt_buffer, trk_parameters.cn0_samples, coh_integration_time_s);
// Carrier lock indicator
d_carrier_lock_test = carrier_lock_detector(d_Prompt_buffer, trk_parameters.cn0_samples);
// Loss of lock detection
if (d_carrier_lock_test < d_carrier_lock_threshold or d_CN0_SNV_dB_Hz < trk_parameters.cn0_min)
{
d_carrier_lock_fail_counter++;
}
else
{
if (d_carrier_lock_fail_counter > 0) d_carrier_lock_fail_counter--;
}
if (d_carrier_lock_fail_counter > trk_parameters.max_lock_fail)
{
std::cout << "Loss of lock in channel " << d_channel << "!" << std::endl;
LOG(INFO) << "Loss of lock in channel " << d_channel << "!";
this->message_port_pub(pmt::mp("events"), pmt::from_long(3)); // 3 -> loss of lock
d_carrier_lock_fail_counter = 0;
return false;
}
return true;
d_cn0_estimation_counter = 0;
// Code lock indicator
d_CN0_SNV_dB_Hz = cn0_svn_estimator(d_Prompt_buffer, trk_parameters.cn0_samples, coh_integration_time_s);
// Carrier lock indicator
d_carrier_lock_test = carrier_lock_detector(d_Prompt_buffer, trk_parameters.cn0_samples);
// Loss of lock detection
if (d_carrier_lock_test < d_carrier_lock_threshold or d_CN0_SNV_dB_Hz < trk_parameters.cn0_min)
{
d_carrier_lock_fail_counter++;
}
else
{
if (d_carrier_lock_fail_counter > 0) d_carrier_lock_fail_counter--;
}
if (d_carrier_lock_fail_counter > trk_parameters.max_lock_fail)
{
std::cout << "Loss of lock in channel " << d_channel << "!" << std::endl;
LOG(INFO) << "Loss of lock in channel " << d_channel << "!";
this->message_port_pub(pmt::mp("events"), pmt::from_long(3)); // 3 -> loss of lock
d_carrier_lock_fail_counter = 0;
return false;
}
return true;
}
@@ -1452,7 +1451,7 @@ int dll_pll_veml_tracking::general_work(int noutput_items __attribute__((unused)
DLOG(INFO) << "PULL-IN Doppler [Hz] = " << d_carrier_doppler_hz
<< ". PULL-IN Code Phase [samples] = " << d_acq_code_phase_samples;
consume_each(samples_offset); // shift input to perform alignment with local replica
consume_each(samples_offset); // shift input to perform alignment with local replica
return 0;
}
case 2: // Wide tracking and symbol synchronization
@@ -1492,8 +1491,8 @@ int dll_pll_veml_tracking::general_work(int noutput_items __attribute__((unused)
next_state = acquire_secondary();
if (next_state)
{
LOG(INFO) << systemName << " " << signal_pretty_name << " secondary code locked in channel " << d_channel
<< " for satellite " << Gnss_Satellite(systemName, d_acquisition_gnss_synchro->PRN) << std::endl;
LOG(INFO) << systemName << " " << signal_pretty_name << " secondary code locked in channel " << d_channel
<< " for satellite " << Gnss_Satellite(systemName, d_acquisition_gnss_synchro->PRN) << std::endl;
std::cout << systemName << " " << signal_pretty_name << " secondary code locked in channel " << d_channel
<< " for satellite " << Gnss_Satellite(systemName, d_acquisition_gnss_synchro->PRN) << std::endl;
}
@@ -1525,7 +1524,7 @@ int dll_pll_veml_tracking::general_work(int noutput_items __attribute__((unused)
}
if (corr_value == d_preamble_length_symbols)
{
LOG(INFO) << systemName << " " << signal_pretty_name << " tracking preamble detected in channel " << d_channel
LOG(INFO) << systemName << " " << signal_pretty_name << " tracking preamble detected in channel " << d_channel
<< " for satellite " << Gnss_Satellite(systemName, d_acquisition_gnss_synchro->PRN) << std::endl;
next_state = true;
}