gnss-sdr/conf/gnss-sdr_GPS_L1_rtlsdr_realtime.conf

; This is a GNSS-SDR configuration file
; The configuration API is described at https://gnss-sdr.org/docs/sp-blocks/
; SPDX-License-Identifier: GPL-3.0-or-later
; SPDX-FileCopyrightText: (C) 2010-2020  (see AUTHORS file for a list of contributors)

; 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_sps: Internal signal sampling frequency after the signal conditioning stage [samples per second].
;FOR USE GNSS-SDR WITH RTLSDR DONGLES USER MUST SET THE CALIBRATED SAMPLE RATE HERE
; i.e. using front-end-cal as reported here: https://www.researchgate.net/publication/257137427_Turning_a_Television_into_a_GNSS_Receiver
GNSS-SDR.internal_fs_sps=1999898


;######### SUPL RRLP GPS assistance configuration #####
; Check https://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=false
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_MNC=5
GNSS-SDR.SUPL_LAC=0x59e2
GNSS-SDR.SUPL_CI=0x31b0

;######### SIGNAL_SOURCE CONFIG ############
SignalSource.implementation=Osmosdr_Signal_Source
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: https://www.researchgate.net/publication/257137427_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

;# Please note that the new RTL-SDR Blog V3 dongles ship a < 1 PPM
;# temperature compensated oscillator (TCXO), which is well suited for GNSS
;# signal processing, and a 4.5 V powered bias-tee to feed an active antenna.
;# Whether the bias-tee is turned off before reception depends on which version
;# of gr-osmosdr was used when compiling GNSS-SDR. With an old version
;# (for example, v0.1.4-8), the utility rtl_biast may be used to switch the
;# bias-tee, and then call gnss-sdr.
;# See https://github.com/rtlsdrblog/rtl_biast
;# After reception the bias-tee is switched off automatically by the program.
;# With newer versions of gr-osmosdr (>= 0.1.4-13), the bias-tee can be
;# activated by uncommenting the following line:
;SignalSource.osmosdr_args=rtl,bias=1

;######### 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: https://www.researchgate.net/publication/257137427_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 ############
Resampler.implementation=Pass_Through

;######### CHANNELS GLOBAL CONFIG ############
Channels_1C.count=4
Channels.in_acquisition=1
Channel.signal=1C


;######### ACQUISITION GLOBAL CONFIG ############
Acquisition_1C.implementation=GPS_L1_CA_PCPS_Acquisition_Fine_Doppler
Acquisition_1C.item_type=gr_complex
Acquisition_1C.coherent_integration_time_ms=1
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
Acquisition_1C.dump=false
Acquisition_1C.dump_filename=./acq_dump.dat


;######### TRACKING GLOBAL CONFIG ############
Tracking_1C.implementation=GPS_L1_CA_DLL_PLL_Tracking
Tracking_1C.item_type=gr_complex
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.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


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


;######### PVT CONFIG ############
PVT.implementation=RTKLIB_PVT
PVT.positioning_mode=PPP_Static  ; options: Single, Static, Kinematic, PPP_Static, PPP_Kinematic
PVT.iono_model=Broadcast ; options: OFF, Broadcast, SBAS, Iono-Free-LC, Estimate_STEC, IONEX
PVT.trop_model=Saastamoinen ; options: OFF, Saastamoinen, SBAS, Estimate_ZTD, Estimate_ZTD_Grad
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