gnss-sdr/conf/gnss-sdr_GPS_L1_acq_QuickSync.conf

; 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]

;######### GLOBAL OPTIONS ##################
;internal_fs_hz: Internal signal sampling frequency after the signal conditioning stage [Hz].
GNSS-SDR.internal_fs_hz=4000000

;######### CONTROL_THREAD CONFIG ############
ControlThread.wait_for_flowgraph=false

;######### 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

;#filename: path to file with the captured GNSS signal samples to be processed
SignalSource.filename=../data/2013_04_04_GNSS_SIGNAL_at_CTTC_SPAIN.dat


;#item_type: Type and resolution for each of the signal samples. 
;#Use gr_complex for 32 bits float I/Q or short for I/Q interleaved short integer.
;#If short is selected you should have to instantiate the Ishort_To_Complex data_type_adapter.

SignalSource.item_type=short

;#sampling_frequency: Original Signal sampling frequency in [Hz] 
SignalSource.sampling_frequency=4000000

;#freq: RF front-end center frequency in [Hz] 
SignalSource.freq=1575420000

;#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


;#enable_throttle_control: Enabling this option tells the signal source to keep the delay between samples in post processing.
; it helps to not overload the CPU, but the processing time will be longer. 
SignalSource.enable_throttle_control=false


;######### 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=Ishort_To_Complex
;#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=Fir_Filter
;InputFilter.implementation=Freq_Xlating_Fir_Filter
InputFilter.implementation=Pass_Through

;#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=4000000
InputFilter.IF=0



;######### RESAMPLER CONFIG ############
;## Resamples the input data. 

;#implementation: Use [Pass_Through] or [Direct_Resampler]
;#[Pass_Through] disables this block
;#[Direct_Resampler] enables a resampler that implements a nearest neigbourhood interpolation
;Resampler.implementation=Direct_Resampler
Resampler.implementation=Pass_Through

;#dump: Dump the resamplered data to a file.
Resampler.dump=false
;#dump_filename: Log path and filename.
Resampler.dump_filename=../data/resampler.dat

;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
Resampler.item_type=gr_complex

;#sample_freq_in: the sample frequency of the input signal
Resampler.sample_freq_in=4000000

;#sample_freq_out: the desired sample frequency of the output signal
Resampler.sample_freq_out=4000000


;######### CHANNELS GLOBAL CONFIG ############
;#count: Number of available satellite channels.
Channels_1C.count=5
;#in_acquisition: Number of channels simultaneously acquiring
Channels.in_acquisition=1


;######### CHANNEL 0 CONFIG ############
Channel0.signal=1C
Channel0.satellite=1
Channel0.repeat_satellite=false

;######### CHANNEL 1 CONFIG ############
Channel1.signal=1C
Channel1.satellite=11
Channel1.repeat_satellite=false

;######### CHANNEL 2 CONFIG ############
Channel2.signal=1C
Channel2.satellite=17
Channel2.repeat_satellite=false

;######### CHANNEL 3 CONFIG ############
Channel3.signal=1C
Channel3.satellite=20
Channel3.repeat_satellite=false

;######### CHANNEL 4 CONFIG ############
Channel4.signal=1C
Channel4.satellite=32
Channel4.repeat_satellite=false

;######### ACQUISITION GLOBAL CONFIG ############_1C

;#dump: Enable or disable the acquisition internal data file logging [true] or [false] 
Acquisition_1C.dump=true
;#filename: Log path and filename
;Acquisition_1C.dump_filename=./acq_dump.dat
;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
Acquisition_1C.item_type=gr_complex
;#if: Signal intermediate frequency in [Hz] 
Acquisition_1C.if=0
;#sampled_ms: Signal block duration for the acquisition signal detection [ms]
Acquisition_1C.coherent-integration_time_ms=4

Acquisition_1C.implementation=GPS_L1_CA_PCPS_QuickSync_Acquisition

;######### ACQUISITION CHANNELS CONFIG ######
;#implementation: Acquisition algorithm selection for this channel: [GPS_L1_CA_PCPS_Acquisition]
Acquisition_1C.implementation=GPS_L1_CA_PCPS_QuickSync_Acquisition
;#threshold: Acquisition threshold
Acquisition_1C.threshold=0.4
;#doppler_max: Maximum expected Doppler shift [Hz]
Acquisition_1C.doppler_max=10000
;#doppler_max: Doppler step in the grid search [Hz]
Acquisition_1C.doppler_step=250
;#repeat_satellite: Use only jointly with the satellte PRN ID option. 


;######### TRACKING GLOBAL CONFIG ############

;#implementation: Selected tracking algorithm: [GPS_L1_CA_DLL_PLL_Tracking] or [GPS_L1_CA_DLL_FLL_PLL_Tracking]
Tracking_1C.implementation=GPS_L1_CA_DLL_PLL_Tracking
;#item_type: Type and resolution for each of the signal samples. Use only [gr_complex] in this version.
Tracking_1C.item_type=gr_complex

;#sampling_frequency: Signal Intermediate Frequency in [Hz] 
Tracking_1C.if=0

;#dump: Enable or disable the Tracking internal binary data file logging [true] or [false] 
Tracking_1C.dump=false

;#dump_filename: Log path and filename. Notice that the tracking channel will add "x.dat" where x is the channel number.
Tracking_1C.dump_filename=./tracking_ch_

;#pll_bw_hz: PLL loop filter bandwidth [Hz]
Tracking_1C.pll_bw_hz=50.0;

;#dll_bw_hz: DLL loop filter bandwidth [Hz]
Tracking_1C.dll_bw_hz=4.0;

;#fll_bw_hz: FLL loop filter bandwidth [Hz]
Tracking_1C.fll_bw_hz=10.0;

;#order: PLL/DLL loop filter order [2] or [3]
Tracking_1C.order=3;

;#early_late_space_chips: correlator early-late space [chips]. Use [0.5]
Tracking_1C.early_late_space_chips=0.5;

;######### TELEMETRY DECODER CONFIG ############
;#implementation: Use [GPS_L1_CA_Telemetry_Decoder] for GPS L1 C/A.
TelemetryDecoder_1C.implementation=GPS_L1_CA_Telemetry_Decoder
TelemetryDecoder_1C.dump=false

;######### OBSERVABLES CONFIG ############
;#implementation: Use [GPS_L1_CA_Observables] for GPS L1 C/A.
Observables.implementation=GPS_L1_CA_Observables

;#dump: Enable or disable the Observables internal binary data file logging [true] or [false] 
Observables.dump=false

;#dump_filename: Log path and filename.
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

;#output_rate_ms: Period between two PVT outputs. Notice that the minimum period is equal to the tracking integration time (for GPS CA L1 is 1ms) [ms]
PVT.output_rate_ms=100;

;#display_rate_ms: Position console print (std::out) interval [ms]. Notice that output_rate_ms<=display_rate_ms.
PVT.display_rate_ms=500;

;#dump: Enable or disable the PVT internal binary data file logging [true] or [false] 
PVT.dump=false

;#dump_filename: Log path and filename without extension. Notice that PVT will add ".dat" to the binary dump and ".kml" to GoogleEarth dump.
PVT.dump_filename=./PVT

;######### OUTPUT_FILTER CONFIG ############
;# Receiver output filter: Leave this block disabled in this version
OutputFilter.implementation=Null_Sink_Output_Filter
OutputFilter.filename=data/gnss-sdr.dat
OutputFilter.item_type=gr_complex