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	Adding SPIR file data source, by Fran Fabra
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							| @@ -47,6 +47,7 @@ Damian Miralles         dmiralles2009@gmail.com         Developer | |||||||
| Andres Cecilia Luque    a.cecilia.luque@gmail.com       Developer | Andres Cecilia Luque    a.cecilia.luque@gmail.com       Developer | ||||||
| Leonardo Tonetto        tonetto.dev@gmail.com           Contributor | Leonardo Tonetto        tonetto.dev@gmail.com           Contributor | ||||||
| Anthony Arnold          anthony.arnold@uqconnect.edu.au Contributor | Anthony Arnold          anthony.arnold@uqconnect.edu.au Contributor | ||||||
|  | Fran Fabra              fabra@ice.csic.es               Contributor | ||||||
| Ignacio Paniego         ignacio.paniego@gmail.com       Web design | Ignacio Paniego         ignacio.paniego@gmail.com       Web design | ||||||
| Eva Puchol              eva.puchol@gmail.com            Web developer | Eva Puchol              eva.puchol@gmail.com            Web developer | ||||||
| Carlos Paniego          carpanie@hotmail.com            Artwork | Carlos Paniego          carpanie@hotmail.com            Artwork | ||||||
|   | |||||||
							
								
								
									
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								conf/gnss-sdr_GPS_L1_SPIR.conf
									
									
									
									
									
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							| @@ -0,0 +1,343 @@ | |||||||
|  | ; 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] (experimental) | ||||||
|  | SignalSource.implementation=Spir_File_Signal_Source | ||||||
|  |  | ||||||
|  | ;#filename: path to file with the captured GNSS signal samples to be processed | ||||||
|  | SignalSource.filename=/media/fabra/dd44068b-f808-4164-834c-35b550037514/CTTC/spir_file_20secs.dat | ||||||
|  | ;SignalSource.filename=/Users/carlesfernandez/Documents/workspace/code2/trunk/data/20Secs/20Secs_L1.dat | ||||||
|  |  | ||||||
|  | ;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version. | ||||||
|  | SignalSource.item_type=int | ||||||
|  |  | ||||||
|  | ;#sampling_frequency: Original Signal sampling frequency in [Hz]  | ||||||
|  | SignalSource.sampling_frequency=80000000 | ||||||
|  |  | ||||||
|  | ;#freq: RF front-end center frequency in [Hz]  | ||||||
|  | SignalSource.freq=1575420000 | ||||||
|  |  | ||||||
|  | ;#gain: Front-end Gain in [dB]  | ||||||
|  | SignalSource.gain=60 | ||||||
|  |  | ||||||
|  | ;#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 | ||||||
|  |  | ||||||
|  |  | ||||||
|  | ;#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: [Pass_Through] disables this block | ||||||
|  | DataTypeAdapter.implementation=Pass_Through | ||||||
|  | DataTypeAdapter.item_type=float | ||||||
|  |  | ||||||
|  | ;######### 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=float | ||||||
|  |  | ||||||
|  | ;#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=80000000 | ||||||
|  | InputFilter.IF=10164 | ||||||
|  | InputFilter.decimation_factor=20 | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | ;######### 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=80000000 | ||||||
|  |  | ||||||
|  | ;#sample_freq_out: the desired sample frequency of the output signal | ||||||
|  | Resampler.sample_freq_out=4000000 | ||||||
|  |  | ||||||
|  |  | ||||||
|  | ;######### CHANNELS GLOBAL CONFIG ############ | ||||||
|  | ;#count: Number of available GPS satellite channels. | ||||||
|  | Channels_GPS.count=10 | ||||||
|  | ;#count: Number of available Galileo satellite channels. | ||||||
|  | Channels_Galileo.count=0 | ||||||
|  | ;#in_acquisition: Number of channels simultaneously acquiring | ||||||
|  | Channels.in_acquisition=1 | ||||||
|  | ;#system: GPS, GLONASS, GALILEO, SBAS or COMPASS | ||||||
|  | ;#if the option is disabled by default is assigned GPS | ||||||
|  | Channel.system=GPS | ||||||
|  |  | ||||||
|  | ;#signal:  | ||||||
|  | ;# "1C" GPS L1 C/A | ||||||
|  | ;#if the option is disabled by default is assigned "1C" GPS L1 C/A | ||||||
|  | Channel.signal=1C | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | ;Galileo FM3 -> PRN 19 | ||||||
|  | ;Galileo FM4 -> PRN 20 | ||||||
|  | ;######### CHANNEL 0 CONFIG ############ | ||||||
|  |  | ||||||
|  | ;Channel0.system=Galileo | ||||||
|  | ;Channel0.signal=1B | ||||||
|  | ;#satellite: Satellite PRN ID for this channel. Disable this option to random search | ||||||
|  | ;Channel0.satellite=20 | ||||||
|  |  | ||||||
|  | ;######### CHANNEL 1 CONFIG ############ | ||||||
|  |  | ||||||
|  | ;Channel1.system=Galileo | ||||||
|  | ;Channel1.signal=1B | ||||||
|  | ;Channel1.satellite=12 | ||||||
|  |  | ||||||
|  | ;######### CHANNEL 2 CONFIG ############ | ||||||
|  |  | ||||||
|  | ;Channel2.system=Galileo | ||||||
|  | ;Channel2.signal=1B | ||||||
|  | ;#satellite: Satellite PRN ID for this channel. Disable this option to random search | ||||||
|  | ;Channel2.satellite=11 | ||||||
|  |  | ||||||
|  | ;######### CHANNEL 3 CONFIG ############ | ||||||
|  |  | ||||||
|  | ;Channel3.system=Galileo | ||||||
|  | ;Channel3.signal=1B | ||||||
|  | ;Channel3.satellite=19 | ||||||
|  |  | ||||||
|  | ;######### ACQUISITION GLOBAL CONFIG ############ | ||||||
|  |  | ||||||
|  | ;#dump: Enable or disable the acquisition internal data file logging [true] or [false]  | ||||||
|  | Acquisition_GPS.dump=false | ||||||
|  | ;#filename: Log path and filename | ||||||
|  | Acquisition_GPS.dump_filename=./acq_dump.dat | ||||||
|  | ;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version. | ||||||
|  | Acquisition_GPS.item_type=gr_complex | ||||||
|  | ;#if: Signal intermediate frequency in [Hz]  | ||||||
|  | Acquisition_GPS.if=0 | ||||||
|  | ;#sampled_ms: Signal block duration for the acquisition signal detection [ms] | ||||||
|  | Acquisition_GPS.sampled_ms=1 | ||||||
|  | ;#implementation: Acquisition algorithm selection for this channel: [GPS_L1_CA_PCPS_Acquisition] or [Galileo_E1_PCPS_Ambiguous_Acquisition] | ||||||
|  | Acquisition_GPS.implementation=GPS_L1_CA_PCPS_Acquisition_Fine_Doppler | ||||||
|  | ;#threshold: Acquisition threshold | ||||||
|  | Acquisition_GPS.threshold=0.005 | ||||||
|  | ;#pfa: Acquisition false alarm probability. This option overrides the threshold option. Only use with implementations: [GPS_L1_CA_PCPS_Acquisition] or [Galileo_E1_PCPS_Ambiguous_Acquisition]  | ||||||
|  | ;Acquisition_GPS.pfa=0.0001 | ||||||
|  | ;#doppler_max: Maximum expected Doppler shift [Hz] | ||||||
|  | Acquisition_GPS.doppler_max=10000 | ||||||
|  | ;#doppler_max: Maximum expected Doppler shift [Hz] | ||||||
|  | Acquisition_GPS.doppler_min=-10000 | ||||||
|  | ;#doppler_step Doppler step in the grid search [Hz] | ||||||
|  | Acquisition_GPS.doppler_step=500 | ||||||
|  | ;#maximum dwells | ||||||
|  | Acquisition_GPS.max_dwells=5 | ||||||
|  |  | ||||||
|  | ;######### ACQUISITION CHANNELS CONFIG ###### | ||||||
|  |  | ||||||
|  | ;######### ACQUISITION CH 0 CONFIG ############ | ||||||
|  |  | ||||||
|  | ;#repeat_satellite: Use only jointly with the satellite PRN ID option. The default value is false | ||||||
|  | ;Acquisition0.repeat_satellite = true | ||||||
|  | ;Acquisition1.repeat_satellite = true | ||||||
|  | ;Acquisition2.repeat_satellite = true | ||||||
|  | ;Acquisition3.repeat_satellite = true | ||||||
|  |  | ||||||
|  | ;#cboc: Only for [Galileo_E1_PCPS_Ambiguous_Acquisition]. This option allows you to choose between acquiring with CBOC signal [true] or sinboc(1,1) signal [false].  | ||||||
|  | ;#Use only if GNSS-SDR.internal_fs_hz is greater than or equal to 6138000 | ||||||
|  | Acquisition0.cboc=false | ||||||
|  |  | ||||||
|  |  | ||||||
|  | ;######### ACQUISITION CH 1 CONFIG ############ | ||||||
|  | Acquisition1.cboc=false | ||||||
|  |  | ||||||
|  | ;######### TRACKING GLOBAL CONFIG ############ | ||||||
|  |  | ||||||
|  | ;#implementation: Selected tracking algorithm: [GPS_L1_CA_DLL_PLL_Tracking] or [GPS_L1_CA_DLL_FLL_PLL_Tracking] or [GPS_L1_CA_TCP_CONNECTOR_Tracking] or [Galileo_E1_DLL_PLL_VEML_Tracking] | ||||||
|  | Tracking_GPS.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_GPS.item_type=gr_complex | ||||||
|  |  | ||||||
|  | ;#sampling_frequency: Signal Intermediate Frequency in [Hz]  | ||||||
|  | Tracking_GPS.if=0 | ||||||
|  |  | ||||||
|  | ;#dump: Enable or disable the Tracking internal binary data file logging [true] or [false]  | ||||||
|  | Tracking_GPS.dump=false | ||||||
|  |  | ||||||
|  | ;#dump_filename: Log path and filename. Notice that the tracking channel will add "x.dat" where x is the channel number. | ||||||
|  | Tracking_GPS.dump_filename=../data/epl_tracking_ch_ | ||||||
|  |  | ||||||
|  | ;#pll_bw_hz: PLL loop filter bandwidth [Hz] | ||||||
|  | Tracking_GPS.pll_bw_hz=20.0; | ||||||
|  |  | ||||||
|  | ;#dll_bw_hz: DLL loop filter bandwidth [Hz] | ||||||
|  | Tracking_GPS.dll_bw_hz=2.0; | ||||||
|  |  | ||||||
|  | ;#fll_bw_hz: FLL loop filter bandwidth [Hz] | ||||||
|  | Tracking_GPS.fll_bw_hz=10.0; | ||||||
|  |  | ||||||
|  | ;#order: PLL/DLL loop filter order [2] or [3] | ||||||
|  | Tracking_GPS.order=3; | ||||||
|  |  | ||||||
|  | ;######### TELEMETRY DECODER GPS CONFIG ############ | ||||||
|  | ;#implementation: Use [GPS_L1_CA_Telemetry_Decoder] for GPS L1 C/A | ||||||
|  | TelemetryDecoder_GPS.implementation=GPS_L1_CA_Telemetry_Decoder | ||||||
|  | TelemetryDecoder_GPS.dump=false | ||||||
|  | ;#decimation factor | ||||||
|  | TelemetryDecoder_GPS.decimation_factor=1; | ||||||
|  |  | ||||||
|  | ;######### 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=100 | ||||||
|  |  | ||||||
|  | ;#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=500 | ||||||
|  |  | ||||||
|  | ;#display_rate_ms: Position console print (std::out) interval [ms]. Notice that output_rate_ms<=display_rate_ms. | ||||||
|  | PVT.display_rate_ms=500 | ||||||
|  |  | ||||||
|  | ;# RINEX, KML, and NMEA output configuration | ||||||
|  |  | ||||||
|  | ;#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 | ||||||
|  |  | ||||||
|  | ;#nmea_dump_filename: NMEA log path and filename | ||||||
|  | PVT.nmea_dump_filename=./gnss_sdr_pvt.nmea; | ||||||
|  |  | ||||||
|  | ;#flag_nmea_tty_port: Enable or disable the NMEA log to a serial TTY port (Can be used with real hardware or virtual one) | ||||||
|  | PVT.flag_nmea_tty_port=true; | ||||||
|  |  | ||||||
|  | ;#nmea_dump_devname: serial device descriptor for NMEA logging | ||||||
|  | PVT.nmea_dump_devname=/dev/pts/4 | ||||||
|  |  | ||||||
|  |  | ||||||
|  | ;#dump: Enable or disable the PVT internal binary data file logging [true] or [false] | ||||||
|  | PVT.dump=false | ||||||
|  |  | ||||||
|  | ;######### 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 | ||||||
| @@ -112,6 +112,7 @@ endif(ENABLE_UHD) | |||||||
| set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc  | set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc  | ||||||
|                                   gen_signal_source.cc                            |                                   gen_signal_source.cc                            | ||||||
|                                   nsr_file_signal_source.cc  |                                   nsr_file_signal_source.cc  | ||||||
|  |                                   spir_file_signal_source.cc | ||||||
|                                   ${OPT_DRIVER_SOURCES} |                                   ${OPT_DRIVER_SOURCES} | ||||||
| ) | ) | ||||||
|  |  | ||||||
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								src/algorithms/signal_source/adapters/spir_file_signal_source.cc
									
									
									
									
									
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							| @@ -0,0 +1,331 @@ | |||||||
|  | /*! | ||||||
|  |  * \file spir_file_signal_source.cc | ||||||
|  |  * \brief Implementation of a class that reads signals samples from a SPIR file | ||||||
|  |  * and adapts it to a SignalSourceInterface. | ||||||
|  |  * \author Fran Fabra, 2014 fabra(at)ice.csic.es | ||||||
|  |  * | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  * | ||||||
|  |  * Copyright (C) 2010-2015  (see AUTHORS file for a list of contributors) | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is a software defined Global Navigation | ||||||
|  |  *          Satellite Systems receiver | ||||||
|  |  * | ||||||
|  |  * This file is not part of GNSS-SDR. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is free software: you can redistribute it and/or modify | ||||||
|  |  * it under the terms of the GNU General Public License as published by | ||||||
|  |  * the Free Software Foundation, either version 3 of the License, or | ||||||
|  |  * (at your option) any later version. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is distributed in the hope that it will be useful, | ||||||
|  |  * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||||
|  |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | ||||||
|  |  * GNU General Public License for more details. | ||||||
|  |  * | ||||||
|  |  * You should have received a copy of the GNU General Public License | ||||||
|  |  * along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>. | ||||||
|  |  * | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  */ | ||||||
|  |  | ||||||
|  | #include "spir_file_signal_source.h" | ||||||
|  | #include <cstdlib> | ||||||
|  | #include <exception> | ||||||
|  | #include <fstream> | ||||||
|  | #include <iomanip> | ||||||
|  | #include <iostream> | ||||||
|  | #include <gflags/gflags.h> | ||||||
|  | #include <glog/logging.h> | ||||||
|  | #include "gnss_sdr_valve.h" | ||||||
|  | #include "configuration_interface.h" | ||||||
|  |  | ||||||
|  |  | ||||||
|  | using google::LogMessage; | ||||||
|  |  | ||||||
|  | DEFINE_string(spir_signal_source, "-", | ||||||
|  |         "If defined, path to the file containing the NSR (byte to 2-bit packed) signal samples (overrides the configuration file)"); | ||||||
|  |  | ||||||
|  |  | ||||||
|  | SpirFileSignalSource::SpirFileSignalSource(ConfigurationInterface* configuration, | ||||||
|  |         std::string role, unsigned int in_streams, unsigned int out_streams, | ||||||
|  |         boost::shared_ptr<gr::msg_queue> queue) : | ||||||
|  | 	role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(queue) | ||||||
|  | { | ||||||
|  |     std::string default_filename = "../data/my_capture.dat"; | ||||||
|  |     std::string default_item_type = "int"; | ||||||
|  |     std::string default_dump_filename = "../data/my_capture_dump.dat"; | ||||||
|  |  | ||||||
|  |     samples_ = configuration->property(role + ".samples", 0); | ||||||
|  |     sampling_frequency_ = configuration->property(role + ".sampling_frequency", 0); | ||||||
|  |     filename_ = configuration->property(role + ".filename", default_filename); | ||||||
|  |  | ||||||
|  |     // override value with commandline flag, if present | ||||||
|  |     if (FLAGS_spir_signal_source.compare("-") != 0) filename_= FLAGS_spir_signal_source; | ||||||
|  |  | ||||||
|  |     item_type_ = configuration->property(role + ".item_type", default_item_type); | ||||||
|  |     repeat_ = configuration->property(role + ".repeat", false); | ||||||
|  |     dump_ = configuration->property(role + ".dump", false); | ||||||
|  |     dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename); | ||||||
|  |     enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false); | ||||||
|  |  | ||||||
|  |     if (item_type_.compare("int") == 0) | ||||||
|  |         { | ||||||
|  |             item_size_ = sizeof(int); | ||||||
|  |         } | ||||||
|  |     else | ||||||
|  |         { | ||||||
|  |             LOG(WARNING) << item_type_  << " unrecognized item type. Using int."; | ||||||
|  |             item_size_ = sizeof(int); | ||||||
|  |         } | ||||||
|  |     try | ||||||
|  |     { | ||||||
|  |             file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_); | ||||||
|  |             unpack_intspir_ = make_unpack_intspir_1bit_samples(); | ||||||
|  |  | ||||||
|  |     } | ||||||
|  |     catch (const std::exception &e) | ||||||
|  |     { | ||||||
|  |             std::cerr | ||||||
|  |             << "The receiver was configured to work with a file signal source " | ||||||
|  |             << std::endl | ||||||
|  |             << "but the specified file is unreachable by GNSS-SDR." | ||||||
|  |             << std::endl | ||||||
|  |             <<  "Please modify your configuration file" | ||||||
|  |             << std::endl | ||||||
|  |             <<  "and point SignalSource.filename to a valid raw data file. Then:" | ||||||
|  |             << std::endl | ||||||
|  |             << "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf" | ||||||
|  |             << std::endl | ||||||
|  |             << "Examples of configuration files available at:" | ||||||
|  |             << std::endl | ||||||
|  |             << GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/" | ||||||
|  |             << std::endl; | ||||||
|  |  | ||||||
|  |             LOG(WARNING) << "file_signal_source: Unable to open the samples file " | ||||||
|  |                     << filename_.c_str() << ", exiting the program."; | ||||||
|  |             throw(e); | ||||||
|  |     } | ||||||
|  |  | ||||||
|  |     DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")"; | ||||||
|  |  | ||||||
|  |     if (samples_ == 0) // read all file | ||||||
|  |         { | ||||||
|  |             /*! | ||||||
|  |              * BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File. | ||||||
|  |              * A possible solution is to compute the file length in samples using file size, excluding the last 100 milliseconds, and enable always the | ||||||
|  |              * valve block | ||||||
|  |              */ | ||||||
|  |             std::ifstream file (filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate); | ||||||
|  |             std::ifstream::pos_type size; | ||||||
|  |  | ||||||
|  |             if (file.is_open()) | ||||||
|  |                 { | ||||||
|  |                     size = file.tellg(); | ||||||
|  |                     LOG(INFO) << "Total samples in the file= " << floor((double)size / (double)item_size()); | ||||||
|  |                 } | ||||||
|  |             else | ||||||
|  |                 { | ||||||
|  |                     std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << std::endl; | ||||||
|  |                     LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str(); | ||||||
|  |                 } | ||||||
|  |             std::cout << std::setprecision(16); | ||||||
|  |             std::cout << "Processing file " << filename_ << ", which contains " << (double)size << " [bytes]" << std::endl; | ||||||
|  |  | ||||||
|  |             if (size > 0) | ||||||
|  |                 { | ||||||
|  |                     int sample_packet_factor = 1; // 1 int -> 1 complex sample (I&Q from 1 channel) | ||||||
|  |                     samples_ = floor((double)size / (double)item_size())*sample_packet_factor; | ||||||
|  |                     samples_ = samples_- ceil(0.002 * (double)sampling_frequency_); //process all the samples available in the file excluding the last 2 ms | ||||||
|  |                 } | ||||||
|  |         } | ||||||
|  |  | ||||||
|  |     CHECK(samples_ > 0) << "File does not contain enough samples to process."; | ||||||
|  |     double signal_duration_s; | ||||||
|  |     signal_duration_s = (double)samples_ * ( 1 /(double)sampling_frequency_); | ||||||
|  |     LOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]"; | ||||||
|  |     std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]" << std::endl; | ||||||
|  |  | ||||||
|  |     valve_ = gnss_sdr_make_valve(sizeof(float), samples_, queue_); | ||||||
|  |     DLOG(INFO) << "valve(" << valve_->unique_id() << ")"; | ||||||
|  |  | ||||||
|  |     if (dump_) | ||||||
|  |         { | ||||||
|  |             //sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str()); | ||||||
|  |             sink_ = gr::blocks::file_sink::make(sizeof(float), dump_filename_.c_str()); | ||||||
|  |             DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")"; | ||||||
|  |         } | ||||||
|  |  | ||||||
|  |     if (enable_throttle_control_) | ||||||
|  |         { | ||||||
|  |             throttle_ = gr::blocks::throttle::make(sizeof(float), sampling_frequency_); | ||||||
|  |         } | ||||||
|  |     DLOG(INFO) << "File source filename " << filename_; | ||||||
|  |     DLOG(INFO) << "Samples " << samples_; | ||||||
|  |     DLOG(INFO) << "Sampling frequency " << sampling_frequency_; | ||||||
|  |     DLOG(INFO) << "Item type " << item_type_; | ||||||
|  |     DLOG(INFO) << "Item size " << item_size_; | ||||||
|  |     DLOG(INFO) << "Repeat " << repeat_; | ||||||
|  |     DLOG(INFO) << "Dump " << dump_; | ||||||
|  |     DLOG(INFO) << "Dump filename " << dump_filename_; | ||||||
|  | } | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | SpirFileSignalSource::~SpirFileSignalSource() | ||||||
|  | {} | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | void SpirFileSignalSource::connect(gr::top_block_sptr top_block) | ||||||
|  | { | ||||||
|  |     if (samples_ > 0) | ||||||
|  |         { | ||||||
|  |             if (enable_throttle_control_ == true) | ||||||
|  |                 { | ||||||
|  |                     top_block->connect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                     top_block->connect(unpack_intspir_, 0,throttle_,0); | ||||||
|  |                     DLOG(INFO) << "connected file source to throttle"; | ||||||
|  |                     top_block->connect(throttle_, 0, valve_, 0); | ||||||
|  |                     DLOG(INFO) << "connected throttle to valve"; | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->connect(valve_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "connected valve to file sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |             else | ||||||
|  |                 { | ||||||
|  |                     top_block->connect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                     top_block->connect(unpack_intspir_, 0,valve_,0); | ||||||
|  |                     DLOG(INFO) << "connected file source to valve"; | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->connect(valve_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "connected valve to file sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |         } | ||||||
|  |     else | ||||||
|  |         { | ||||||
|  |             if (enable_throttle_control_ == true) | ||||||
|  |                 { | ||||||
|  |                     top_block->connect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                     top_block->connect(unpack_intspir_, 0,throttle_,0); | ||||||
|  |                     DLOG(INFO) << "connected file source to throttle"; | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->connect(throttle_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "connected file source to sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |             else | ||||||
|  |                 { | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->connect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                             top_block->connect(unpack_intspir_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "connected file source to sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |         } | ||||||
|  | } | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | void SpirFileSignalSource::disconnect(gr::top_block_sptr top_block) | ||||||
|  | { | ||||||
|  |     if (samples_ > 0) | ||||||
|  |         { | ||||||
|  |             if (enable_throttle_control_ == true) | ||||||
|  |                 { | ||||||
|  |                     top_block->disconnect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                     DLOG(INFO) << "disconnected file source to unpack_intspir_"; | ||||||
|  |                     top_block->connect(unpack_intspir_, 0,throttle_,0); | ||||||
|  |                     DLOG(INFO) << "disconnected unpack_intspir_ to throttle_"; | ||||||
|  |                     top_block->disconnect(throttle_, 0, valve_, 0); | ||||||
|  |                     DLOG(INFO) << "disconnected throttle to valve"; | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->disconnect(valve_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "disconnected valve to file sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |             else | ||||||
|  |                 { | ||||||
|  |                     top_block->disconnect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                     DLOG(INFO) << "disconnected file source to unpack_intspir_"; | ||||||
|  |                     top_block->disconnect(unpack_intspir_, 0, valve_, 0); | ||||||
|  |                     DLOG(INFO) << "disconnected unpack_intspir_ to valve"; | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->disconnect(valve_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "disconnected valve to file sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |         } | ||||||
|  |     else | ||||||
|  |         { | ||||||
|  |             if (enable_throttle_control_ == true) | ||||||
|  |                 { | ||||||
|  |                     top_block->disconnect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                     DLOG(INFO) << "disconnected file source to unpack_intspir_"; | ||||||
|  |                     top_block->disconnect(unpack_intspir_, 0, throttle_, 0); | ||||||
|  |                     DLOG(INFO) << "disconnected unpack_intspir_ to throttle"; | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->disconnect(unpack_intspir_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "disconnected funpack_intspir_ to sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |             else | ||||||
|  |                 { | ||||||
|  |                     if (dump_) | ||||||
|  |                         { | ||||||
|  |                             top_block->disconnect(file_source_, 0, unpack_intspir_, 0); | ||||||
|  |                             DLOG(INFO) << "disconnected file source to unpack_intspir_"; | ||||||
|  |                             top_block->disconnect(unpack_intspir_, 0, sink_, 0); | ||||||
|  |                             DLOG(INFO) << "disconnected unpack_intspir_ to sink"; | ||||||
|  |                         } | ||||||
|  |                 } | ||||||
|  |         } | ||||||
|  | } | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | gr::basic_block_sptr SpirFileSignalSource::get_left_block() | ||||||
|  | { | ||||||
|  |     LOG(WARNING) << "Left block of a signal source should not be retrieved"; | ||||||
|  |     //return gr_block_sptr(); | ||||||
|  |     return gr::blocks::file_source::sptr(); | ||||||
|  | } | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | gr::basic_block_sptr SpirFileSignalSource::get_right_block() | ||||||
|  | { | ||||||
|  |     if (samples_ > 0) | ||||||
|  |         { | ||||||
|  |             return valve_; | ||||||
|  |         } | ||||||
|  |     else | ||||||
|  |         { | ||||||
|  |             if (enable_throttle_control_ == true) | ||||||
|  |                 { | ||||||
|  |                     return throttle_; | ||||||
|  |                 } | ||||||
|  |             else | ||||||
|  |                 { | ||||||
|  |                     return unpack_intspir_; | ||||||
|  |                 } | ||||||
|  |         } | ||||||
|  | } | ||||||
							
								
								
									
										122
									
								
								src/algorithms/signal_source/adapters/spir_file_signal_source.h
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										122
									
								
								src/algorithms/signal_source/adapters/spir_file_signal_source.h
									
									
									
									
									
										Normal file
									
								
							| @@ -0,0 +1,122 @@ | |||||||
|  | /*! | ||||||
|  |  * \file spir_file_signal_source.h | ||||||
|  |  * \brief Implementation of a class that reads signals samples from a SPIR file | ||||||
|  |  * and adapts it to a SignalSourceInterface. | ||||||
|  |  * \author Fran Fabra, 2014 fabra(at)ice.csic.es | ||||||
|  |  * | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  * | ||||||
|  |  * Copyright (C) 2010-2015  (see AUTHORS file for a list of contributors) | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is a software defined Global Navigation | ||||||
|  |  *          Satellite Systems receiver | ||||||
|  |  * | ||||||
|  |  * This file is not part of GNSS-SDR. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is free software: you can redistribute it and/or modify | ||||||
|  |  * it under the terms of the GNU General Public License as published by | ||||||
|  |  * the Free Software Foundation, either version 3 of the License, or | ||||||
|  |  * (at your option) any later version. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is distributed in the hope that it will be useful, | ||||||
|  |  * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||||
|  |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | ||||||
|  |  * GNU General Public License for more details. | ||||||
|  |  * | ||||||
|  |  * You should have received a copy of the GNU General Public License | ||||||
|  |  * along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>. | ||||||
|  |  * | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  */ | ||||||
|  |  | ||||||
|  | #ifndef GNSS_SDR_SPIR_FILE_SIGNAL_SOURCE_H_ | ||||||
|  | #define GNSS_SDR_SPIR_FILE_SIGNAL_SOURCE_H_ | ||||||
|  |  | ||||||
|  | #include <string> | ||||||
|  | #include <gnuradio/blocks/file_source.h> | ||||||
|  | #include <gnuradio/blocks/file_sink.h> | ||||||
|  | #include <gnuradio/blocks/throttle.h> | ||||||
|  | #include <gnuradio/hier_block2.h> | ||||||
|  | #include <gnuradio/msg_queue.h> | ||||||
|  | #include "gnss_block_interface.h" | ||||||
|  | #include "unpack_intspir_1bit_samples.h" | ||||||
|  |  | ||||||
|  |  | ||||||
|  | class ConfigurationInterface; | ||||||
|  |  | ||||||
|  | /*! | ||||||
|  |  * \brief Class that reads signals samples from a file | ||||||
|  |  * and adapts it to a SignalSourceInterface | ||||||
|  |  */ | ||||||
|  | class SpirFileSignalSource: public GNSSBlockInterface | ||||||
|  | { | ||||||
|  | public: | ||||||
|  |     SpirFileSignalSource(ConfigurationInterface* configuration, std::string role, | ||||||
|  |             unsigned int in_streams, unsigned int out_streams, | ||||||
|  |             boost::shared_ptr<gr::msg_queue> queue); | ||||||
|  |  | ||||||
|  |     virtual ~SpirFileSignalSource(); | ||||||
|  |     std::string role() | ||||||
|  |     { | ||||||
|  |         return role_; | ||||||
|  |     } | ||||||
|  |  | ||||||
|  |     /*! | ||||||
|  |      * \brief Returns "Spir_File_Signal_Source". | ||||||
|  |      */ | ||||||
|  |     std::string implementation() | ||||||
|  |     { | ||||||
|  |         return "Spir_File_Signal_Source"; | ||||||
|  |     } | ||||||
|  |     size_t item_size() | ||||||
|  |     { | ||||||
|  |         return item_size_; | ||||||
|  |     } | ||||||
|  |     void connect(gr::top_block_sptr top_block); | ||||||
|  |     void disconnect(gr::top_block_sptr top_block); | ||||||
|  |     gr::basic_block_sptr get_left_block(); | ||||||
|  |     gr::basic_block_sptr get_right_block(); | ||||||
|  |     std::string filename() | ||||||
|  |     { | ||||||
|  |         return filename_; | ||||||
|  |     } | ||||||
|  |     std::string item_type() | ||||||
|  |     { | ||||||
|  |         return item_type_; | ||||||
|  |     } | ||||||
|  |     bool repeat() | ||||||
|  |     { | ||||||
|  |         return repeat_; | ||||||
|  |     } | ||||||
|  |     long sampling_frequency() | ||||||
|  |     { | ||||||
|  |         return sampling_frequency_; | ||||||
|  |     } | ||||||
|  |     long samples() | ||||||
|  |     { | ||||||
|  |         return samples_; | ||||||
|  |     } | ||||||
|  |  | ||||||
|  | private: | ||||||
|  |     unsigned long long samples_; | ||||||
|  |     long sampling_frequency_; | ||||||
|  |     std::string filename_; | ||||||
|  |     std::string item_type_; | ||||||
|  |     bool repeat_; | ||||||
|  |     bool dump_; | ||||||
|  |     std::string dump_filename_; | ||||||
|  |     std::string role_; | ||||||
|  |     unsigned int in_streams_; | ||||||
|  |     unsigned int out_streams_; | ||||||
|  |     gr::blocks::file_source::sptr file_source_; | ||||||
|  |     unpack_intspir_1bit_samples_sptr unpack_intspir_; | ||||||
|  |     boost::shared_ptr<gr::block> valve_; | ||||||
|  |     gr::blocks::file_sink::sptr sink_; | ||||||
|  |     gr::blocks::throttle::sptr  throttle_; | ||||||
|  |     boost::shared_ptr<gr::msg_queue> queue_; | ||||||
|  |     size_t item_size_; | ||||||
|  |     // Throttle control | ||||||
|  |     bool enable_throttle_control_; | ||||||
|  | }; | ||||||
|  |  | ||||||
|  | #endif /*GNSS_SDR_SPIR_FILE_SIGNAL_SOURCE_H_*/ | ||||||
| @@ -0,0 +1,84 @@ | |||||||
|  | /*! | ||||||
|  |  * \file unpack_intspir_1bit_samples.cc | ||||||
|  |  * | ||||||
|  |  * \brief Unpacks SPIR int samples to NSR 1 bit samples | ||||||
|  |  * \author Fran Fabra fabra (at) ice.csic.es | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  * | ||||||
|  |  * Copyright (C) 2010-2015  (see AUTHORS file for a list of contributors) | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is a software defined Global Navigation | ||||||
|  |  *          Satellite Systems receiver | ||||||
|  |  * | ||||||
|  |  * This file is not part of GNSS-SDR. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is free software: you can redistribute it and/or modify | ||||||
|  |  * it under the terms of the GNU General Public License as published by | ||||||
|  |  * the Free Software Foundation, either version 3 of the License, or | ||||||
|  |  * (at your option) any later version. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is distributed in the hope that it will be useful, | ||||||
|  |  * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||||
|  |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | ||||||
|  |  * GNU General Public License for more details. | ||||||
|  |  * | ||||||
|  |  * You should have received a copy of the GNU General Public License | ||||||
|  |  * along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>. | ||||||
|  |  * | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  */ | ||||||
|  |  | ||||||
|  |  | ||||||
|  | #include "unpack_intspir_1bit_samples.h" | ||||||
|  | #include <iostream> | ||||||
|  | #include <gnuradio/io_signature.h> | ||||||
|  |  | ||||||
|  |  | ||||||
|  |  | ||||||
|  | unpack_intspir_1bit_samples_sptr make_unpack_intspir_1bit_samples() | ||||||
|  | { | ||||||
|  |     return unpack_intspir_1bit_samples_sptr(new unpack_intspir_1bit_samples()); | ||||||
|  | } | ||||||
|  |  | ||||||
|  | unpack_intspir_1bit_samples::unpack_intspir_1bit_samples() : sync_interpolator("unpack_intspir_1bit_samples", | ||||||
|  |                                                                          gr::io_signature::make(1, 1, sizeof(int)), | ||||||
|  |                                                                          gr::io_signature::make(1, 1, sizeof(float)), | ||||||
|  |             	                                                         2) | ||||||
|  | {} | ||||||
|  |  | ||||||
|  | unpack_intspir_1bit_samples::~unpack_intspir_1bit_samples() | ||||||
|  | {} | ||||||
|  |  | ||||||
|  | int unpack_intspir_1bit_samples::work(int noutput_items, | ||||||
|  |                                    gr_vector_const_void_star &input_items, | ||||||
|  |                                    gr_vector_void_star &output_items) | ||||||
|  | { | ||||||
|  |     const signed int *in = (const signed int *)input_items[0]; | ||||||
|  |     float *out = (float*)output_items[0]; | ||||||
|  |  | ||||||
|  |     int n = 0; | ||||||
|  |     int channel = 1; | ||||||
|  |     for(int i = 0; i < noutput_items/2; i++) | ||||||
|  |         { | ||||||
|  |             // Read packed input sample (1 byte = 1 complex sample) | ||||||
|  |             // For historical reasons, values are float versions of short int limits (32767) | ||||||
|  |             signed int val = in[i]; | ||||||
|  | 	    if(((val >> ((channel - 1)*2)) & 1) == 1) | ||||||
|  | 	        { | ||||||
|  | 	            out[n++] = static_cast<float>(32767.0); | ||||||
|  | 	        } | ||||||
|  | 	    else | ||||||
|  | 	        { | ||||||
|  | 	            out[n++] = static_cast<float>(-32767.0); | ||||||
|  | 	        } | ||||||
|  | 	    if(((val >> (2*channel - 1)) & 1) == 1) | ||||||
|  | 	        { | ||||||
|  | 	            out[n++] = static_cast<float>(32767.0); | ||||||
|  | 	        } | ||||||
|  | 	    else | ||||||
|  | 	        { | ||||||
|  | 	            out[n++] = static_cast<float>(-32767.0); | ||||||
|  | 	        } | ||||||
|  |         } | ||||||
|  |     return noutput_items; | ||||||
|  | } | ||||||
| @@ -0,0 +1,60 @@ | |||||||
|  | /*! | ||||||
|  |  * \file unpack_intspir_1bit_samples.h | ||||||
|  |  * | ||||||
|  |  * \brief Unpacks SPIR int samples to NSR 1 bit samples | ||||||
|  |  * \author Fran Fabra fabra (at) ice.csic.es | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  * | ||||||
|  |  * Copyright (C) 2010-2015  (see AUTHORS file for a list of contributors) | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is a software defined Global Navigation | ||||||
|  |  *          Satellite Systems receiver | ||||||
|  |  * | ||||||
|  |  * This file is not part of GNSS-SDR. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is free software: you can redistribute it and/or modify | ||||||
|  |  * it under the terms of the GNU General Public License as published by | ||||||
|  |  * the Free Software Foundation, either version 3 of the License, or | ||||||
|  |  * (at your option) any later version. | ||||||
|  |  * | ||||||
|  |  * GNSS-SDR is distributed in the hope that it will be useful, | ||||||
|  |  * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||||
|  |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | ||||||
|  |  * GNU General Public License for more details. | ||||||
|  |  * | ||||||
|  |  * You should have received a copy of the GNU General Public License | ||||||
|  |  * along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>. | ||||||
|  |  * | ||||||
|  |  * ------------------------------------------------------------------------- | ||||||
|  |  */ | ||||||
|  |  | ||||||
|  | #ifndef GNSS_SDR_UNPACK_INTSPIR_1BIT_SAMPLES_H | ||||||
|  | #define GNSS_SDR_UNPACK_INTSPIR_1BIT_SAMPLES_H | ||||||
|  |  | ||||||
|  | #include <gnuradio/sync_interpolator.h> | ||||||
|  |  | ||||||
|  | class unpack_intspir_1bit_samples; | ||||||
|  |  | ||||||
|  | typedef boost::shared_ptr<unpack_intspir_1bit_samples> unpack_intspir_1bit_samples_sptr; | ||||||
|  |  | ||||||
|  | unpack_intspir_1bit_samples_sptr make_unpack_intspir_1bit_samples(); | ||||||
|  |  | ||||||
|  | /*! | ||||||
|  |  * \brief This class implements conversion between byte packet samples to 2bit samples | ||||||
|  |  *  1 byte = 4 2bit samples | ||||||
|  |  */ | ||||||
|  | class unpack_intspir_1bit_samples: public gr::sync_interpolator | ||||||
|  | { | ||||||
|  | private: | ||||||
|  |     friend unpack_intspir_1bit_samples_sptr | ||||||
|  |     make_unpack_intspir_1bit_samples_sptr(); | ||||||
|  |  | ||||||
|  | public: | ||||||
|  |     unpack_intspir_1bit_samples(); | ||||||
|  |     ~unpack_intspir_1bit_samples(); | ||||||
|  |     int work (int noutput_items, | ||||||
|  |               gr_vector_const_void_star &input_items, | ||||||
|  |               gr_vector_void_star &output_items); | ||||||
|  | }; | ||||||
|  |  | ||||||
|  | #endif | ||||||
| @@ -45,6 +45,7 @@ | |||||||
| #include "pass_through.h" | #include "pass_through.h" | ||||||
| #include "file_signal_source.h" | #include "file_signal_source.h" | ||||||
| #include "nsr_file_signal_source.h" | #include "nsr_file_signal_source.h" | ||||||
|  | #include "spir_file_signal_source.h" | ||||||
| #include "null_sink_output_filter.h" | #include "null_sink_output_filter.h" | ||||||
| #include "file_output_filter.h" | #include "file_output_filter.h" | ||||||
| #include "channel.h" | #include "channel.h" | ||||||
| @@ -384,6 +385,21 @@ std::unique_ptr<GNSSBlockInterface> GNSSBlockFactory::GetBlock( | |||||||
|                             out_streams, queue)); |                             out_streams, queue)); | ||||||
|                     block = std::move(block_); |                     block = std::move(block_); | ||||||
|  |  | ||||||
|  |             } | ||||||
|  |             catch (const std::exception &e) | ||||||
|  |             { | ||||||
|  |                     std::cout << "GNSS-SDR program ended." << std::endl; | ||||||
|  |                     exit(1); | ||||||
|  |             } | ||||||
|  |         } | ||||||
|  |     else if (implementation.compare("Spir_File_Signal_Source") == 0) | ||||||
|  |         { | ||||||
|  |             try | ||||||
|  |             { | ||||||
|  |                     std::unique_ptr<GNSSBlockInterface> block_(new SpirFileSignalSource(configuration.get(), role, in_streams, | ||||||
|  |                             out_streams, queue)); | ||||||
|  |                     block = std::move(block_); | ||||||
|  |  | ||||||
|             } |             } | ||||||
|             catch (const std::exception &e) |             catch (const std::exception &e) | ||||||
|             { |             { | ||||||
|   | |||||||
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