; You can define your own receiver and invoke it by doing ; gnss-sdr --config_file=my_GNSS_SDR_configuration.conf ; [GNSS-SDR] ;######### GLOBAL OPTIONS ################## ;internal_fs_hz: Internal signal sampling frequency after the signal conditioning stage [Hz]. ;FOR USE GNSS-SDR WITH RTLSDR DONGLES USER MUST SET THE CALIBRATED SAMPLE RATE HERE ; i.e. using front-end-cal as reported here:http://www.cttc.es/publication/turning-a-television-into-a-gnss-receiver/ GNSS-SDR.internal_fs_hz=1999898 ;######### CONTROL_THREAD CONFIG ############ ControlThread.wait_for_flowgraph=false ;######### SUPL RRLP GPS assistance configuration ##### GNSS-SDR.SUPL_gps_enabled=false GNSS-SDR.SUPL_read_gps_assistance_xml=false GNSS-SDR.SUPL_gps_ephemeris_server=supl.nokia.com GNSS-SDR.SUPL_gps_ephemeris_port=7275 GNSS-SDR.SUPL_gps_acquisition_server=supl.google.com GNSS-SDR.SUPL_gps_acquisition_port=7275 GNSS-SDR.SUPL_MCC=244 GNSS-SDR.SUPL_MNS=5 GNSS-SDR.SUPL_LAC=0x59e2 GNSS-SDR.SUPL_CI=0x31b0 ;######### SIGNAL_SOURCE CONFIG ############ SignalSource.implementation=Osmosdr_Signal_Source ;SignalSource.filename=/media/DATALOGGER_/signals/RTL-SDR/geo/pmt4.dat SignalSource.item_type=gr_complex ;FOR USE GNSS-SDR WITH RTLSDR DONGLES USER MUST SET THE CALIBRATED SAMPLE RATE HERE ; i.e. using front-end-cal as reported here:http://www.cttc.es/publication/turning-a-television-into-a-gnss-receiver/ SignalSource.sampling_frequency=2000000 SignalSource.freq=1575420000 SignalSource.gain=40 SignalSource.rf_gain=40 SignalSource.if_gain=30 SignalSource.AGC_enabled = false SignalSource.samples=0 SignalSource.repeat=false SignalSource.dump=false SignalSource.dump_filename=../data/signal_source.dat SignalSource.enable_throttle_control=false ;######### SIGNAL_CONDITIONER CONFIG ############ SignalConditioner.implementation=Signal_Conditioner ;######### DATA_TYPE_ADAPTER CONFIG ############ DataTypeAdapter.implementation=Pass_Through ;######### INPUT_FILTER CONFIG ############ InputFilter.implementation=Freq_Xlating_Fir_Filter InputFilter.dump=false InputFilter.dump_filename=../data/input_filter.dat InputFilter.input_item_type=gr_complex InputFilter.output_item_type=gr_complex InputFilter.taps_item_type=float InputFilter.number_of_taps=5 InputFilter.number_of_bands=2 InputFilter.band1_begin=0.0 InputFilter.band1_end=0.45 InputFilter.band2_begin=0.55 InputFilter.band2_end=1.0 InputFilter.ampl1_begin=1.0 InputFilter.ampl1_end=1.0 InputFilter.ampl2_begin=0.0 InputFilter.ampl2_end=0.0 InputFilter.band1_error=1.0 InputFilter.band2_error=1.0 InputFilter.filter_type=bandpass InputFilter.grid_density=16 ;FOR USE GNSS-SDR WITH RTLSDR DONGLES USER MUST SET THE CALIBRATED SAMPLE RATE HERE ; i.e. using front-end-cal as reported here:http://www.cttc.es/publication/turning-a-television-into-a-gnss-receiver/ InputFilter.sampling_frequency=1999898 InputFilter.IF=80558 ; IF deviation due to front-end LO inaccuracies [Hz] ;######### RESAMPLER CONFIG ############ ;## Resamples the input data. ;# DISABLED IN THE RTL-SDR REALTIME ;#implementation: Use [Pass_Through] or [Direct_Resampler] ;#[Pass_Through] disables this block Resampler.implementation=Pass_Through ;######### CHANNELS GLOBAL CONFIG ############ Channels_1C.count=4 Channels.in_acquisition=1 Channel.signal=1C ;######### ACQUISITION GLOBAL CONFIG ############ Acquisition_1C.dump=false Acquisition_1C.dump_filename=./acq_dump.dat Acquisition_1C.item_type=gr_complex Acquisition_1C.if=0 Acquisition_1C.sampled_ms=1 Acquisition_1C.implementation=GPS_L1_CA_PCPS_Acquisition_Fine_Doppler Acquisition_1C.threshold=0.015 ;Acquisition_1C.pfa=0.0001 Acquisition_1C.doppler_max=10000 Acquisition_1C.doppler_min=-10000 Acquisition_1C.doppler_step=500 Acquisition_1C.max_dwells=15 ;######### TRACKING GLOBAL CONFIG ############ Tracking_1C.implementation=GPS_L1_CA_DLL_PLL_Tracking Tracking_1C.item_type=gr_complex Tracking_1C.if=0 Tracking_1C.dump=false Tracking_1C.dump_filename=./tracking_ch_ Tracking_1C.pll_bw_hz=40.0; Tracking_1C.dll_bw_hz=2.0; Tracking_1C.fll_bw_hz=10.0; Tracking_1C.order=3; Tracking_1C.early_late_space_chips=0.5; ;######### TELEMETRY DECODER GPS CONFIG ############ TelemetryDecoder_1C.implementation=GPS_L1_CA_Telemetry_Decoder TelemetryDecoder_1C.dump=false TelemetryDecoder_1C.decimation_factor=1; ;######### OBSERVABLES CONFIG ############ Observables.implementation=GPS_L1_CA_Observables Observables.dump=false Observables.dump_filename=./observables.dat ;######### PVT CONFIG ############ ;#implementation: Position Velocity and Time (PVT) implementation algorithm: Use [GPS_L1_CA_PVT] in this version. PVT.implementation=GPS_L1_CA_PVT ;#averaging_depth: Number of PVT observations in the moving average algorithm PVT.averaging_depth=10 ;#flag_average: Enables the PVT averaging between output intervals (arithmetic mean) [true] or [false] PVT.flag_averaging=true PVT.output_rate_ms=100 PVT.display_rate_ms=500 PVT.dump_filename=./PVT PVT.nmea_dump_filename=./gnss_sdr_pvt.nmea; PVT.flag_nmea_tty_port=false; PVT.nmea_dump_devname=/dev/pts/4 PVT.dump=false PVT.flag_rtcm_server=false PVT.flag_rtcm_tty_port=false PVT.rtcm_dump_devname=/dev/pts/1 ;######### OUTPUT_FILTER CONFIG ############ ;# Receiver output filter: Leave this block disabled in this version OutputFilter.implementation=Null_Sink_Output_Filter OutputFilter.item_type=gr_complex