mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-10-31 23:26:22 +00:00
Adding SPIR file data source, by Fran Fabra
This commit is contained in:
Carles Fernandez
parent
dcb6ed7c50
commit
056158e198
1
AUTHORS
1
AUTHORS
@ -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
|
||||||
|
|||||||
343
conf/gnss-sdr_GPS_L1_SPIR.conf
Normal file
343
conf/gnss-sdr_GPS_L1_SPIR.conf
Normal file
@ -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}
|
||||||
)
|
)
|
||||||
|
|
||||||
|
|||||||
331
src/algorithms/signal_source/adapters/spir_file_signal_source.cc
Normal file
331
src/algorithms/signal_source/adapters/spir_file_signal_source.cc
Normal file
@ -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)
|
||||||
{
|
{
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user