gnss-sdr/conf/gnss-sdr_GPS_L2C_USRP1_realtime.conf

; Configuration file for using USRP1 as a RF front-end for GPS L2C signals
; Run:
; gnss-sdr --config_file=/path/to/gnss-sdr_GPS_L2C_USRP1_realtime.conf
;
[GNSS-SDR]

;######### GLOBAL OPTIONS ##################
;internal_fs_hz: Internal signal sampling frequency after the signal conditioning stage [Hz].
GNSS-SDR.internal_fs_hz=2000000


;######### 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.item_type=gr_complex
SignalSource.sampling_frequency=2000000
SignalSource.freq=1227600000
SignalSource.gain=60
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=gr_complex


;######### INPUT_FILTER 0 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=0.45
InputFilter.band2_begin=0.55
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=20000000

InputFilter.IF=-1600000

;# Decimation factor after the frequency tranaslating block
InputFilter.decimation_factor=1

;######### RESAMPLER CONFIG ############
Resampler.implementation=Pass_Through
Resampler.dump=false
Resampler.dump_filename=../data/resampler.dat
Resampler.item_type=gr_complex
Resampler.sample_freq_in=2000000
Resampler.sample_freq_out=2000000


;######### 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=0.0013
;Acquisition_2S.pfa=0.001
Acquisition_2S.doppler_max=10000
Acquisition_2S.doppler_min=-10000
Acquisition_2S.doppler_step=100
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=1.5;
Tracking_2S.dll_bw_hz=0.3;
Tracking_2S.order=3;
Tracking_2S.early_late_space_chips=0.5;

;######### TELEMETRY DECODER GPS CONFIG ############
TelemetryDecoder_2S.implementation=GPS_L2C_Telemetry_Decoder
TelemetryDecoder_2S.dump=false
TelemetryDecoder_2S.decimation_factor=1;

;######### OBSERVABLES CONFIG ############.
Observables.implementation=Hybrid_Observables
Observables.dump=false
Observables.dump_filename=./observables.dat


;######### PVT CONFIG ############
PVT.implementation=Hybrid_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