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Code Issues Releases Wiki Activity

Improving tracking loop filter initialization

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This commit is contained in:
Javier Arribas
2019-04-09 17:36:05 +02:00
parent 2290a75eeb
commit 226edca17c
1 changed files with 6 additions and 3 deletions
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9
src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking.cc
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@@ -560,9 +560,6 @@ void dll_pll_veml_tracking::start_tracking()
d_carrier_phase_rate_step_rad = 0.0; d_carrier_phase_rate_step_rad = 0.0;
d_carr_ph_history.clear(); d_carr_ph_history.clear();
d_code_ph_history.clear(); d_code_ph_history.clear();
// DLL/PLL filter initialization
d_carrier_loop_filter.initialize(static_cast<float>(d_acq_carrier_doppler_hz)); // initialize the carrier filter
d_code_loop_filter.initialize(); // initialize the code filter
if (systemName == "GPS" and signal_type == "1C") if (systemName == "GPS" and signal_type == "1C")
{ {
@@ -732,8 +729,14 @@ void dll_pll_veml_tracking::start_tracking()
d_current_correlation_time_s = d_code_period; d_current_correlation_time_s = d_code_period;
// Initialize tracking ==========================================
d_carrier_loop_filter.set_params(trk_parameters.fll_bw_hz, trk_parameters.pll_bw_hz, trk_parameters.pll_filter_order);
d_code_loop_filter.set_noise_bandwidth(trk_parameters.dll_bw_hz); d_code_loop_filter.set_noise_bandwidth(trk_parameters.dll_bw_hz);
d_code_loop_filter.set_update_interval(d_code_period); d_code_loop_filter.set_update_interval(d_code_period);
// DLL/PLL filter initialization
d_carrier_loop_filter.initialize(static_cast<float>(d_acq_carrier_doppler_hz)); // initialize the carrier filter
d_code_loop_filter.initialize(); // initialize the code filter
// DEBUG OUTPUT // DEBUG OUTPUT
std::cout << "Tracking of " << systemName << " " << signal_pretty_name << " signal started on channel " << d_channel << " for satellite " << Gnss_Satellite(systemName, d_acquisition_gnss_synchro->PRN) << std::endl; std::cout << "Tracking of " << systemName << " " << signal_pretty_name << " signal started on channel " << d_channel << " for satellite " << Gnss_Satellite(systemName, d_acquisition_gnss_synchro->PRN) << std::endl;