; Default configuration file ; You can define your own receiver and invoke it by doing ; gnss-sdr --config_file=my_GNSS_SDR_configuration.conf ; [GNSS-SDR] ;######### INITIAL RECEIVER POSITIION ###### ;GNSS-SDR.init_latitude_deg=40.74846557442795 ;GNSS-SDR.init_longitude_deg=-73.98593961814200 ;GNSS-SDR.init_altitude_m=329.11968943169342 GNSS-SDR.init_latitude_deg=41.27481478485936 GNSS-SDR.init_longitude_deg=1.98753271588628 GNSS-SDR.init_altitude_m=25 ;######### GLOBAL OPTIONS ################## ;internal_fs_hz: Internal signal sampling frequency after the signal conditioning stage [Hz]. GNSS-SDR.internal_fs_hz=2000000 ;######### CONTROL_THREAD CONFIG ############ ControlThread.wait_for_flowgraph=false ;######### SUPL RRLP GPS assistance configuration ##### GNSS-SDR.SUPL_gps_enabled=true 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=217 GNSS-SDR.SUPL_MNS=7 GNSS-SDR.SUPL_LAC=861 GNSS-SDR.SUPL_CI=40184 ;######### SIGNAL_SOURCE CONFIG ############ ;#implementation: Use [File_Signal_Source] or [UHD_Signal_Source] or [GN3S_Signal_Source] or [Rtlsdr_Signal_Source] SignalSource.implementation=File_Signal_Source SignalSource.AGC_enabled=false ;#filename: path to file with the captured GNSS signal samples to be processed SignalSource.filename=/media/DATALOGGER_/signals/Agilent GPS Generator/New York/2msps.dat ;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version. SignalSource.item_type=gr_complex ;#sampling_frequency: Original Signal sampling frequency in [Hz] SignalSource.sampling_frequency=2000000 ;#freq: RF front-end center frequency in [Hz] SignalSource.freq=1575420000 ;#gain: Front-end Gain in [dB] SignalSource.gain=40 SignalSource.rf_gain=40 SignalSource.if_gain=5 ;#subdevice: UHD subdevice specification (for USRP1 use A:0 or B:0) SignalSource.subdevice=B:0 ;#samples: Number of samples to be processed. Notice that 0 indicates the entire file. SignalSource.samples=0 ;#repeat: Repeat the processing file. Disable this option in this version SignalSource.repeat=false ;#dump: Dump the Signal source data to a file. Disable this option in this version SignalSource.dump=false SignalSource.dump_filename=../data/signal_source.dat ;######### SIGNAL_CONDITIONER CONFIG ############ ;## It holds blocks to change data type, filter and resample input data. ;#implementation: Use [Pass_Through] or [Signal_Conditioner] ;#[Pass_Through] disables this block and the [DataTypeAdapter], [InputFilter] and [Resampler] blocks ;#[Signal_Conditioner] enables this block. Then you have to configure [DataTypeAdapter], [InputFilter] and [Resampler] blocks SignalConditioner.implementation=Signal_Conditioner ;######### DATA_TYPE_ADAPTER CONFIG ############ ;## Changes the type of input data. Please disable it in this version. ;#implementation: Use [Ishort_To_Complex] or [Pass_Through] DataTypeAdapter.implementation=Pass_Through ;#dump: Dump the filtered data to a file. DataTypeAdapter.dump=false ;#dump_filename: Log path and filename. DataTypeAdapter.dump_filename=../data/data_type_adapter.dat ;######### INPUT_FILTER CONFIG ############ ;## Filter the input data. Can be combined with frequency translation for IF signals ;#implementation: Use [Pass_Through] or [Fir_Filter] or [Freq_Xlating_Fir_Filter] ;#[Pass_Through] disables this block ;#[Fir_Filter] enables a FIR Filter ;#[Freq_Xlating_Fir_Filter] enables FIR filter and a composite frequency translation that shifts IF down to zero Hz. InputFilter.implementation=Freq_Xlating_Fir_Filter ;#dump: Dump the filtered data to a file. InputFilter.dump=false ;#dump_filename: Log path and filename. InputFilter.dump_filename=../data/input_filter.dat ;#The following options are used in the filter design of Fir_Filter and Freq_Xlating_Fir_Filter implementation. ;#These options are based on parameters of gnuradio's function: gr_remez. ;#These function calculates the optimal (in the Chebyshev/minimax sense) FIR filter inpulse reponse given a set of band edges, the desired reponse on those bands, and the weight given to the error in those bands. ;#input_item_type: Type and resolution for input signal samples. Use only gr_complex in this version. InputFilter.input_item_type=gr_complex ;#outut_item_type: Type and resolution for output filtered signal samples. Use only gr_complex in this version. InputFilter.output_item_type=gr_complex ;#taps_item_type: Type and resolution for the taps of the filter. Use only float in this version. InputFilter.taps_item_type=float ;#number_of_taps: Number of taps in the filter. Increasing this parameter increases the processing time InputFilter.number_of_taps=5 ;#number_of _bands: Number of frequency bands in the filter. InputFilter.number_of_bands=2 ;#bands: frequency at the band edges [ b1 e1 b2 e2 b3 e3 ...]. ;#Frequency is in the range [0, 1], with 1 being the Nyquist frequency (Fs/2) ;#The number of band_begin and band_end elements must match the number of bands InputFilter.band1_begin=0.0 ;InputFilter.band1_end=0.8 InputFilter.band1_end=0.85 InputFilter.band2_begin=0.90 InputFilter.band2_end=1.0 ;#ampl: desired amplitude at the band edges [ a(b1) a(e1) a(b2) a(e2) ...]. ;#The number of ampl_begin and ampl_end elements must match the number of bands InputFilter.ampl1_begin=1.0 InputFilter.ampl1_end=1.0 InputFilter.ampl2_begin=0.0 InputFilter.ampl2_end=0.0 ;#band_error: weighting applied to each band (usually 1). ;#The number of band_error elements must match the number of bands InputFilter.band1_error=1.0 InputFilter.band2_error=1.0 ;#filter_type: one of "bandpass", "hilbert" or "differentiator" InputFilter.filter_type=bandpass ;#grid_density: determines how accurately the filter will be constructed. ;The minimum value is 16; higher values are slower to compute the filter. InputFilter.grid_density=16 ;#The following options are used only in Freq_Xlating_Fir_Filter implementation. ;#InputFilter.IF is the intermediate frequency (in Hz) shifted down to zero Hz InputFilter.sampling_frequency=2000000 InputFilter.IF=0 InputFilter.decimation_factor=1 ;######### RESAMPLER CONFIG ############ ;## Resamples the input data. ;#implementation: Use [Pass_Through] or [Direct_Resampler] ;#[Pass_Through] disables this block Resampler.implementation=Pass_Through ;######### ACQUISITION GLOBAL CONFIG ############ ;#dump: Enable or disable the acquisition internal data file logging [true] or [false] Acquisition.dump=false ;#filename: Log path and filename Acquisition.dump_filename=./acq_dump.dat ;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version. Acquisition.item_type=gr_complex ;#if: Signal intermediate frequency in [Hz] Acquisition.if=0 ;#sampled_ms: Signal block duration for the acquisition signal detection [ms] Acquisition.sampled_ms=1 ;#implementation: Acquisition algorithm selection for this channel: [GPS_L1_CA_PCPS_Acquisition] or [Galileo_E1_PCPS_Ambiguous_Acquisition] Acquisition.implementation=GPS_L1_CA_PCPS_Acquisition ;#threshold: Acquisition threshold Acquisition.threshold=40 ;#doppler_max: Maximum expected Doppler shift [Hz] Acquisition.doppler_max=10000 ;#doppler_max: Maximum expected Doppler shift [Hz] Acquisition.doppler_min=-10000 ;#doppler_step Doppler step in the grid search [Hz] Acquisition.doppler_step=250 ;#maximum dwells Acquisition.max_dwells=2