; Configuration file for using USRP X300 as a RF front-end for GPS L2C signals ; Set SignalSource.device_address to the IP address of your device ; and run: ; gnss-sdr --config_file=/path/to/gnss-sdr_GPS_L2C_USRP_X300_realtime.conf ; [GNSS-SDR] ;######### GLOBAL OPTIONS ################## ;internal_fs_hz: Internal signal sampling frequency after the signal conditioning stage [Hz]. GNSS-SDR.internal_fs_hz=4000000 ;######### SUPL RRLP GPS assistance configuration ##### ; Check http://www.mcc-mnc.com/ ; On Android: https://play.google.com/store/apps/details?id=net.its_here.cellidinfo&hl=en GNSS-SDR.SUPL_gps_enabled=false GNSS-SDR.SUPL_read_gps_assistance_xml=true GNSS-SDR.SUPL_gps_ephemeris_server=supl.google.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=UHD_Signal_Source SignalSource.device_address=192.168.50.2 ; <- PUT THE IP ADDRESS OF YOUR USRP HERE SignalSource.item_type=cshort SignalSource.sampling_frequency=4000000 SignalSource.freq=1227600000 ;### Options: internal, external, or MIMO SignalSource.clock_source=internal SignalSource.gain=35 SignalSource.subdevice=A:0 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 DataTypeAdapter.item_type=cshort ;######### INPUT_FILTER CONFIG ############ InputFilter.implementation=Fir_Filter InputFilter.dump=false InputFilter.dump_filename=../data/input_filter.dat InputFilter.input_item_type=cshort InputFilter.output_item_type=gr_complex InputFilter.taps_item_type=float InputFilter.number_of_taps=11 InputFilter.number_of_bands=2 InputFilter.band1_begin=0.0 InputFilter.band1_end=0.48 InputFilter.band2_begin=0.52 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 InputFilter.sampling_frequency=4000000 InputFilter.IF=0 ;######### RESAMPLER CONFIG ############ Resampler.implementation=Pass_Through Resampler.dump=false Resampler.dump_filename=../data/resampler.dat Resampler.item_type=gr_complex Resampler.sample_freq_in=4000000 Resampler.sample_freq_out=4000000 ;######### CHANNELS GLOBAL CONFIG ############ ;#count: Number of available GPS satellite channels. Channels_2S.count=1 ;#in_acquisition: Number of channels simultaneously acquiring for the whole receiver Channels.in_acquisition=1 Channel.signal=2S Channel0.signal=2S Channel1.signal=2S Channel2.signal=2S Channel3.signal=2S Channel4.signal=2S Channel5.signal=2S Channel6.signal=2S Channel7.signal=2S ;Channel8.signal=2S ;Channel9.signal=2S ;Channel10.signal=2S ;Channel11.signal=2S ;######### ACQUISITION GLOBAL CONFIG ############ ;# GPS L2C M Acquisition_2S.dump=false Acquisition_2S.dump_filename=./acq_dump.dat Acquisition_2S.item_type=gr_complex Acquisition_2S.if=0 Acquisition_2S.implementation=GPS_L2_M_PCPS_Acquisition Acquisition_2S.threshold=0.0015 ;Acquisition_2S.pfa=0.001 Acquisition_2S.doppler_max=5000 Acquisition_2S.doppler_min=-5000 Acquisition_2S.doppler_step=60 Acquisition_2S.max_dwells=1 Tracking_2S.implementation=GPS_L2_M_DLL_PLL_Tracking Tracking_2S.item_type=gr_complex Tracking_2S.if=0 Tracking_2S.dump=true Tracking_2S.dump_filename=./tracking_ch_ Tracking_2S.pll_bw_hz=2.0; Tracking_2S.dll_bw_hz=0.25; Tracking_2S.order=2; Tracking_2S.early_late_space_chips=0.5; ;######### TELEMETRY DECODER GPS CONFIG ############ TelemetryDecoder_2S.implementation=GPS_L2_M_Telemetry_Decoder TelemetryDecoder_2S.dump=true TelemetryDecoder_2S.decimation_factor=1; ;######### OBSERVABLES CONFIG ############. Observables.implementation=GPS_L1_CA_Observables Observables.dump=false Observables.dump_filename=./observables.dat ;######### PVT CONFIG ############ PVT.implementation=GPS_L1_CA_PVT PVT.averaging_depth=10 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.flag_rtcm_server=false PVT.flag_rtcm_tty_port=false PVT.rtcm_dump_devname=/dev/pts/1 PVT.dump=false