mirror of https://github.com/gnss-sdr/gnss-sdr
New feature: GNSS-SDR now reads the IFEN NSR 2bit sample file format. The GNSS-SDR receiver can now be used with the SX-NSR scientific navigation front-end receiver using its native .stream binary captures.
More information of this high-end front-end can be found here: http://www.ifen.com/products/sx-scientific-gnss-solutions/nsr-software-receiver.html git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@421 64b25241-fba3-4117-9849-534c7e92360d
This commit is contained in:
Javier Arribas
parent
025a24bb20
commit
ee43872704
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; Sample configuration file for IFEN SX-NSR software receiver front-end
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; http://www.ifen.com/products/sx-scientific-gnss-solutions/nsr-software-receiver.html
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; This sample configuration is able to process directly .sream binary files
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; You can define your own receiver and invoke it by doing
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; gnss-sdr --config_file=my_GNSS_SDR_configuration.conf
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;
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[GNSS-SDR]
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;######### GLOBAL OPTIONS ##################
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;internal_fs_hz: Internal signal sampling frequency after the signal conditioning stage [Hz].
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GNSS-SDR.internal_fs_hz=2560000
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;######### CONTROL_THREAD CONFIG ############
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ControlThread.wait_for_flowgraph=false
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;######### SUPL RRLP GPS assistance configuration #####
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GNSS-SDR.SUPL_gps_enabled=false
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GNSS-SDR.SUPL_read_gps_assistance_xml=false
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GNSS-SDR.SUPL_gps_ephemeris_server=supl.nokia.com
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GNSS-SDR.SUPL_gps_ephemeris_port=7275
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GNSS-SDR.SUPL_gps_acquisition_server=supl.google.com
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GNSS-SDR.SUPL_gps_acquisition_port=7275
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GNSS-SDR.SUPL_MCC=244
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GNSS-SDR.SUPL_MNS=5
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GNSS-SDR.SUPL_LAC=0x59e2
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GNSS-SDR.SUPL_CI=0x31b0
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;######### SIGNAL_SOURCE CONFIG ############
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;#implementation: Use [File_Signal_Source] [Nsr_File_Signal_Source] or [UHD_Signal_Source] or [GN3S_Signal_Source] (experimental)
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SignalSource.implementation=Nsr_File_Signal_Source
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;#filename: path to file with the captured GNSS signal samples to be processed
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SignalSource.filename=/media/DATALOGGER_/signals/ION GNSS 2013/E1L1_FE0_Band0.stream
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;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
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SignalSource.item_type=byte
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;#sampling_frequency: Original Signal sampling frequency in [Hz]
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SignalSource.sampling_frequency=20480000
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;#freq: RF front-end center frequency in [Hz]
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SignalSource.freq=1575420000
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;#subdevice: UHD subdevice specification (for USRP1 use A:0 or B:0)
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SignalSource.subdevice=B:0
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;#samples: Number of samples to be processed. Notice that 0 indicates the entire file.
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SignalSource.samples=0
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;#repeat: Repeat the processing file. Disable this option in this version
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SignalSource.repeat=false
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;#dump: Dump the Signal source data to a file. Disable this option in this version
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SignalSource.dump=false
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SignalSource.dump_filename=../data/signal_source.dat
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;#enable_throttle_control: Enabling this option tells the signal source to keep the delay between samples in post processing.
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; it helps to not overload the CPU, but the processing time will be longer.
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SignalSource.enable_throttle_control=false
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;######### SIGNAL_CONDITIONER CONFIG ############
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;## It holds blocks to change data type, filter and resample input data.
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;#implementation: Use [Pass_Through] or [Signal_Conditioner]
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;#[Pass_Through] disables this block and the [DataTypeAdapter], [InputFilter] and [Resampler] blocks
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;#[Signal_Conditioner] enables this block. Then you have to configure [DataTypeAdapter], [InputFilter] and [Resampler] blocks
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SignalConditioner.implementation=Signal_Conditioner
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;######### DATA_TYPE_ADAPTER CONFIG ############
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;## Changes the type of input data.
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;#implementation: [Pass_Through] disables this block
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DataTypeAdapter.implementation=Pass_Through
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DataTypeAdapter.item_type=float
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;######### INPUT_FILTER CONFIG ############
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;## Filter the input data. Can be combined with frequency translation for IF signals
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;#implementation: Use [Pass_Through] or [Fir_Filter] or [Freq_Xlating_Fir_Filter]
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;#[Freq_Xlating_Fir_Filter] enables FIR filter and a composite frequency translation
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;# that shifts IF down to zero Hz.
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InputFilter.implementation=Freq_Xlating_Fir_Filter
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;#dump: Dump the filtered data to a file.
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InputFilter.dump=false
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;#dump_filename: Log path and filename.
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InputFilter.dump_filename=../data/input_filter.dat
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;#The following options are used in the filter design of Fir_Filter and Freq_Xlating_Fir_Filter implementation.
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;#These options are based on parameters of gnuradio's function: gr_remez.
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;#These function calculates the optimal (in the Chebyshev/minimax sense) FIR filter inpulse
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;#reponse given a set of band edges, the desired reponse on those bands,
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;#and the weight given to the error in those bands.
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;#input_item_type: Type and resolution for input signal samples. Use only gr_complex in this version.
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InputFilter.input_item_type=float
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;#outut_item_type: Type and resolution for output filtered signal samples. Use only gr_complex in this version.
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InputFilter.output_item_type=gr_complex
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;#taps_item_type: Type and resolution for the taps of the filter. Use only float in this version.
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InputFilter.taps_item_type=float
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;#number_of_taps: Number of taps in the filter. Increasing this parameter increases the processing time
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InputFilter.number_of_taps=5
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;#number_of _bands: Number of frequency bands in the filter.
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InputFilter.number_of_bands=2
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;#bands: frequency at the band edges [ b1 e1 b2 e2 b3 e3 ...].
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;#Frequency is in the range [0, 1], with 1 being the Nyquist frequency (Fs/2)
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;#The number of band_begin and band_end elements must match the number of bands
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InputFilter.band1_begin=0.0
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InputFilter.band1_end=0.45
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InputFilter.band2_begin=0.55
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InputFilter.band2_end=1.0
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;#ampl: desired amplitude at the band edges [ a(b1) a(e1) a(b2) a(e2) ...].
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;#The number of ampl_begin and ampl_end elements must match the number of bands
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InputFilter.ampl1_begin=1.0
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InputFilter.ampl1_end=1.0
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InputFilter.ampl2_begin=0.0
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InputFilter.ampl2_end=0.0
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;#band_error: weighting applied to each band (usually 1).
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;#The number of band_error elements must match the number of bands
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InputFilter.band1_error=1.0
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InputFilter.band2_error=1.0
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;#filter_type: one of "bandpass", "hilbert" or "differentiator"
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InputFilter.filter_type=bandpass
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;#grid_density: determines how accurately the filter will be constructed.
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;The minimum value is 16; higher values are slower to compute the filter.
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InputFilter.grid_density=16
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;# Original sampling frequency stored in the signal file
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InputFilter.sampling_frequency=20480000
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;#The following options are used only in Freq_Xlating_Fir_Filter implementation.
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;#InputFilter.IF is the intermediate frequency (in Hz) shifted down to zero Hz
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InputFilter.IF=5499998.47412109
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;# Decimation factor after the frequency tranaslating block
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InputFilter.decimation_factor=8
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;######### RESAMPLER CONFIG ############
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;## Resamples the input data.
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;#implementation: Use [Pass_Through] or [Direct_Resampler]
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;#[Pass_Through] disables this block
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;#[Direct_Resampler] enables a resampler that implements a nearest neigbourhood interpolation
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;Resampler.implementation=Direct_Resampler
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Resampler.implementation=Pass_Through
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;#dump: Dump the resamplered data to a file.
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Resampler.dump=false
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;#dump_filename: Log path and filename.
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Resampler.dump_filename=../data/resampler.dat
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;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
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Resampler.item_type=gr_complex
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;#sample_freq_in: the sample frequency of the input signal
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Resampler.sample_freq_in=8000000
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;#sample_freq_out: the desired sample frequency of the output signal
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Resampler.sample_freq_out=2048000
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;######### CHANNELS GLOBAL CONFIG ############
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;#count: Number of available satellite channels.
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Channels.count=8
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;#in_acquisition: Number of channels simultaneously acquiring
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Channels.in_acquisition=1
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;#system: GPS, GLONASS, Galileo, SBAS or Compass
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;#if the option is disabled by default is assigned GPS
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Channel.system=GPS
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;#signal:
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;# "1C" GPS L1 C/A
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;# "1P" GPS L1 P
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;# "1W" GPS L1 Z-tracking and similar (AS on)
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;# "1Y" GPS L1 Y
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;# "1M" GPS L1 M
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;# "1N" GPS L1 codeless
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;# "2C" GPS L2 C/A
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;# "2D" GPS L2 L1(C/A)+(P2-P1) semi-codeless
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;# "2S" GPS L2 L2C (M)
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;# "2L" GPS L2 L2C (L)
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;# "2X" GPS L2 L2C (M+L)
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;# "2P" GPS L2 P
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;# "2W" GPS L2 Z-tracking and similar (AS on)
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;# "2Y" GPS L2 Y
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;# "2M" GPS GPS L2 M
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;# "2N" GPS L2 codeless
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;# "5I" GPS L5 I
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;# "5Q" GPS L5 Q
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;# "5X" GPS L5 I+Q
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;# "1C" GLONASS G1 C/A
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;# "1P" GLONASS G1 P
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;# "2C" GLONASS G2 C/A (Glonass M)
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;# "2P" GLONASS G2 P
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;# "1A" GALILEO E1 A (PRS)
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;# "1B" GALILEO E1 B (I/NAV OS/CS/SoL)
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;# "1C" GALILEO E1 C (no data)
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;# "1X" GALILEO E1 B+C
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;# "1Z" GALILEO E1 A+B+C
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;# "5I" GALILEO E5a I (F/NAV OS)
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;# "5Q" GALILEO E5a Q (no data)
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;# "5X" GALILEO E5a I+Q
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;# "7I" GALILEO E5b I
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;# "7Q" GALILEO E5b Q
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;# "7X" GALILEO E5b I+Q
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;# "8I" GALILEO E5 I
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;# "8Q" GALILEO E5 Q
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;# "8X" GALILEO E5 I+Q
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;# "6A" GALILEO E6 A
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;# "6B" GALILEO E6 B
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;# "6C" GALILEO E6 C
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;# "6X" GALILEO E6 B+C
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;# "6Z" GALILEO E6 A+B+C
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;# "1C" SBAS L1 C/A
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;# "5I" SBAS L5 I
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;# "5Q" SBAS L5 Q
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;# "5X" SBAS L5 I+Q
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;# "2I" COMPASS E2 I
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;# "2Q" COMPASS E2 Q
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;# "2X" COMPASS E2 IQ
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;# "7I" COMPASS E5b I
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;# "7Q" COMPASS E5b Q
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;# "7X" COMPASS E5b IQ
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;# "6I" COMPASS E6 I
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;# "6Q" COMPASS E6 Q
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;# "6X" COMPASS E6 IQ
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;#if the option is disabled by default is assigned "1C" GPS L1 C/A
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Channel.signal=1C
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;######### SPECIFIC CHANNELS CONFIG ######
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;#The following options are specific to each channel and overwrite the generic options
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;######### CHANNEL 0 CONFIG ############
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Channel0.system=GPS
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Channel0.signal=1C
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;#satellite: Satellite PRN ID for this channel. Disable this option to random search
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Channel0.satellite=11
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;######### CHANNEL 1 CONFIG ############
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Channel1.system=GPS
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Channel1.signal=1C
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Channel1.satellite=18
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;######### ACQUISITION GLOBAL CONFIG ############
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;#dump: Enable or disable the acquisition internal data file logging [true] or [false]
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Acquisition.dump=false
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;#filename: Log path and filename
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Acquisition.dump_filename=./acq_dump.dat
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;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
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Acquisition.item_type=gr_complex
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;#if: Signal intermediate frequency in [Hz]
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Acquisition.if=0
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;#sampled_ms: Signal block duration for the acquisition signal detection [ms]
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Acquisition.sampled_ms=1
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;#implementation: Acquisition algorithm selection for this channel: [GPS_L1_CA_PCPS_Acquisition] or [Galileo_E1_PCPS_Ambiguous_Acquisition]
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Acquisition.implementation=GPS_L1_CA_PCPS_Acquisition_Fine_Doppler
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;#threshold: Acquisition threshold
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Acquisition.threshold=0.010
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;#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]
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;Acquisition.pfa=0.0001
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;#doppler_max: Maximum expected Doppler shift [Hz]
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Acquisition.doppler_max=10000
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Acquisition.doppler_min=-10000
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;#doppler_max: Doppler step in the grid search [Hz]
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Acquisition.doppler_step=500
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;#maximum dwells
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Acquisition.max_dwells=15
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;######### ACQUISITION CHANNELS CONFIG ######
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;#The following options are specific to each channel and overwrite the generic options
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;######### ACQUISITION CH 0 CONFIG ############
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;Acquisition0.implementation=GPS_L1_CA_PCPS_Acquisition
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;Acquisition0.threshold=0.005
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;Acquisition0.pfa=0.001
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;Acquisition0.doppler_max=10000
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;Acquisition0.doppler_step=250
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;#repeat_satellite: Use only jointly with the satellite PRN ID option. The default value is false
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;Acquisition0.repeat_satellite = false
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;######### TRACKING GLOBAL CONFIG ############
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;#implementation: Selected tracking algorithm: [GPS_L1_CA_DLL_PLL_Tracking] or [GPS_L1_CA_DLL_FLL_PLL_Tracking] [GPS_L1_CA_DLL_PLL_Optim_Tracking]
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Tracking.implementation=GPS_L1_CA_DLL_PLL_Optim_Tracking
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;#item_type: Type and resolution for each of the signal samples. Use only [gr_complex] in this version.
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Tracking.item_type=gr_complex
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;#sampling_frequency: Signal Intermediate Frequency in [Hz]
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Tracking.if=0
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;#dump: Enable or disable the Tracking internal binary data file logging [true] or [false]
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Tracking.dump=false
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;#dump_filename: Log path and filename. Notice that the tracking channel will add "x.dat" where x is the channel number.
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Tracking.dump_filename=./tracking_ch_
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;#pll_bw_hz: PLL loop filter bandwidth [Hz]
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Tracking.pll_bw_hz=50.0;
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;#dll_bw_hz: DLL loop filter bandwidth [Hz]
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Tracking.dll_bw_hz=2.0;
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;#fll_bw_hz: FLL loop filter bandwidth [Hz]
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Tracking.fll_bw_hz=10.0;
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;#order: PLL/DLL loop filter order [2] or [3]
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Tracking.order=3;
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;#early_late_space_chips: correlator early-late space [chips]. Use [0.5]
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Tracking.early_late_space_chips=0.5;
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;######### TELEMETRY DECODER CONFIG ############
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;#implementation: Use [GPS_L1_CA_Telemetry_Decoder] for GPS L1 C/A.
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TelemetryDecoder.implementation=GPS_L1_CA_Telemetry_Decoder
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TelemetryDecoder.dump=false
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;######### OBSERVABLES CONFIG ############
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;#implementation: Use [GPS_L1_CA_Observables] for GPS L1 C/A.
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Observables.implementation=GPS_L1_CA_Observables
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;#dump: Enable or disable the Observables internal binary data file logging [true] or [false]
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Observables.dump=false
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;#dump_filename: Log path and filename.
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Observables.dump_filename=./observables.dat
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;######### PVT CONFIG ############
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;#implementation: Position Velocity and Time (PVT) implementation algorithm: Use [GPS_L1_CA_PVT] in this version.
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PVT.implementation=GPS_L1_CA_PVT
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;#averaging_depth: Number of PVT observations in the moving average algorithm
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PVT.averaging_depth=100
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;#flag_average: Enables the PVT averaging between output intervals (arithmetic mean) [true] or [false]
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PVT.flag_averaging=true
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;#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]
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PVT.output_rate_ms=100
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;#display_rate_ms: Position console print (std::out) interval [ms]. Notice that output_rate_ms<=display_rate_ms.
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PVT.display_rate_ms=500
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;# RINEX, KML, and NMEA output configuration
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;#dump_filename: Log path and filename without extension. Notice that PVT will add ".dat" to the binary dump and ".kml" to GoogleEarth dump.
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PVT.dump_filename=./PVT
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;#nmea_dump_filename: NMEA log path and filename
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PVT.nmea_dump_filename=./gnss_sdr_pvt.nmea;
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;#flag_nmea_tty_port: Enable or disable the NMEA log to a serial TTY port (Can be used with real hardware or virtual one)
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PVT.flag_nmea_tty_port=false;
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;#nmea_dump_devname: serial device descriptor for NMEA logging
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PVT.nmea_dump_devname=/dev/pts/4
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;#dump: Enable or disable the PVT internal binary data file logging [true] or [false]
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PVT.dump=false
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;######### OUTPUT_FILTER CONFIG ############
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;# Receiver output filter: Leave this block disabled in this version
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OutputFilter.implementation=Null_Sink_Output_Filter
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OutputFilter.filename=data/gnss-sdr.dat
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OutputFilter.item_type=gr_complex
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@ -32,7 +32,6 @@
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#include "configuration_interface.h"
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#include <string>
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#include <boost/lexical_cast.hpp>
|
||||
//#include <gnuradio/io_signature.h>
|
||||
#include <gnuradio/blocks/file_sink.h>
|
||||
#include <gnuradio/filter/pm_remez.h>
|
||||
#include <glog/log_severity.h>
|
||||
|
|
@ -55,14 +54,24 @@ FreqXlatingFirFilter::FreqXlatingFirFilter(ConfigurationInterface* configuration
|
|||
if ((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("gr_complex") == 0)
|
||||
&& (output_item_type_.compare("gr_complex") == 0))
|
||||
{
|
||||
item_size = sizeof(gr_complex);
|
||||
item_size = sizeof(gr_complex); //output
|
||||
input_size_=sizeof(gr_complex); //input
|
||||
freq_xlating_fir_filter_ccf_ = gr::filter::freq_xlating_fir_filter_ccf::make(decimation_factor, taps_, intermediate_freq_, sampling_freq_);
|
||||
DLOG(INFO) << "input_filter(" << freq_xlating_fir_filter_ccf_->unique_id() << ")";
|
||||
}
|
||||
else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("float") == 0)
|
||||
&& (output_item_type_.compare("gr_complex") == 0))
|
||||
{
|
||||
item_size = sizeof(gr_complex);
|
||||
input_size_=sizeof(float); //input
|
||||
freq_xlating_fir_filter_fcf_ = gr::filter::freq_xlating_fir_filter_fcf::make(decimation_factor, taps_, intermediate_freq_, sampling_freq_);
|
||||
DLOG(INFO) << "input_filter(" << freq_xlating_fir_filter_fcf_->unique_id() << ")";
|
||||
}
|
||||
else
|
||||
{
|
||||
LOG_AT_LEVEL(ERROR) << taps_item_type_ << " unknown input filter item type";
|
||||
}
|
||||
|
||||
if (dump_)
|
||||
{
|
||||
DLOG(INFO) << "Dumping output into file " << dump_filename_;
|
||||
|
|
@ -82,7 +91,12 @@ void FreqXlatingFirFilter::connect(gr::top_block_sptr top_block)
|
|||
{
|
||||
if (dump_)
|
||||
{
|
||||
top_block->connect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
|
||||
if (input_size_==sizeof(float))
|
||||
{
|
||||
top_block->connect(freq_xlating_fir_filter_fcf_, 0, file_sink_, 0);
|
||||
}else{
|
||||
top_block->connect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -96,7 +110,12 @@ void FreqXlatingFirFilter::disconnect(gr::top_block_sptr top_block)
|
|||
{
|
||||
if (dump_)
|
||||
{
|
||||
top_block->connect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
|
||||
if (input_size_==sizeof(float))
|
||||
{
|
||||
top_block->disconnect(freq_xlating_fir_filter_fcf_, 0, file_sink_, 0);
|
||||
}else{
|
||||
top_block->disconnect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -104,13 +123,24 @@ void FreqXlatingFirFilter::disconnect(gr::top_block_sptr top_block)
|
|||
|
||||
gr::basic_block_sptr FreqXlatingFirFilter::get_left_block()
|
||||
{
|
||||
return freq_xlating_fir_filter_ccf_;
|
||||
if (input_size_==sizeof(float))
|
||||
{
|
||||
return freq_xlating_fir_filter_fcf_;
|
||||
}else{
|
||||
return freq_xlating_fir_filter_ccf_;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
gr::basic_block_sptr FreqXlatingFirFilter::get_right_block()
|
||||
{
|
||||
return freq_xlating_fir_filter_ccf_;
|
||||
if (input_size_==sizeof(float))
|
||||
{
|
||||
return freq_xlating_fir_filter_fcf_;
|
||||
}else{
|
||||
return freq_xlating_fir_filter_ccf_;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -36,6 +36,7 @@
|
|||
#include "gnss_synchro.h"
|
||||
#include "gnss_block_interface.h"
|
||||
#include <gnuradio/filter/freq_xlating_fir_filter_ccf.h>
|
||||
#include <gnuradio/filter/freq_xlating_fir_filter_fcf.h>
|
||||
#include <gnuradio/blocks/file_sink.h>
|
||||
#include <gnuradio/msg_queue.h>
|
||||
|
||||
|
|
@ -82,10 +83,12 @@ public:
|
|||
|
||||
private:
|
||||
gr::filter::freq_xlating_fir_filter_ccf::sptr freq_xlating_fir_filter_ccf_;
|
||||
gr::filter::freq_xlating_fir_filter_fcf::sptr freq_xlating_fir_filter_fcf_;
|
||||
ConfigurationInterface* config_;
|
||||
bool dump_;
|
||||
std::string dump_filename_;
|
||||
std::string input_item_type_;
|
||||
size_t input_size_;
|
||||
std::string output_item_type_;
|
||||
std::string taps_item_type_;
|
||||
std::vector <float> taps_;
|
||||
|
|
|
|||
|
|
@ -17,4 +17,4 @@
|
|||
#
|
||||
|
||||
add_subdirectory(adapters)
|
||||
#add_subdirectory(gnuradio_blocks)
|
||||
add_subdirectory(gnuradio_blocks)
|
||||
|
|
|
|||
|
|
@ -74,7 +74,7 @@ if(RTLSDR_DRIVER)
|
|||
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${RTL_DRIVER_INCLUDE_DIRS})
|
||||
endif(RTLSDR_DRIVER)
|
||||
|
||||
set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc gen_signal_source.cc uhd_signal_source.cc ${OPT_DRIVER_SOURCES})
|
||||
set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc gen_signal_source.cc uhd_signal_source.cc nsr_file_signal_source.cc ${OPT_DRIVER_SOURCES})
|
||||
|
||||
|
||||
include_directories(
|
||||
|
|
@ -83,6 +83,7 @@ include_directories(
|
|||
${CMAKE_SOURCE_DIR}/src/core/system_parameters
|
||||
${CMAKE_SOURCE_DIR}/src/core/interfaces
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/libs
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/signal_source/gnuradio_blocks
|
||||
${UHD_INCLUDE_DIRS}
|
||||
${GLOG_INCLUDE_DIRS}
|
||||
${GFlags_INCLUDE_DIRS}
|
||||
|
|
@ -90,4 +91,4 @@ include_directories(
|
|||
)
|
||||
|
||||
add_library(signal_source_adapters ${SIGNAL_SOURCE_ADAPTER_SOURCES})
|
||||
target_link_libraries(signal_source_adapters ${Boost_LIBRARIES} ${GNURADIO_PMT_LIBRARIES} ${GNURADIO_BLOCKS_LIBRARIES} ${UHD_LIBRARIES} ${GNURADIO_UHD_LIBRARIES} ${OPT_LIBRARIES} gnss_sp_libs)
|
||||
target_link_libraries(signal_source_adapters signal_source_gr_blocks ${Boost_LIBRARIES} ${GNURADIO_PMT_LIBRARIES} ${GNURADIO_BLOCKS_LIBRARIES} ${UHD_LIBRARIES} ${GNURADIO_UHD_LIBRARIES} ${OPT_LIBRARIES} gnss_sp_libs)
|
||||
|
|
|
|||
|
|
@ -36,11 +36,8 @@
|
|||
#define GNSS_SDR_FILE_SIGNAL_SOURCE_H_
|
||||
|
||||
#include "gnss_block_interface.h"
|
||||
//#include <gnuradio/gr_file_source.h>
|
||||
#include <gnuradio/blocks/file_source.h>
|
||||
//#include <gnuradio/gr_file_sink.h>
|
||||
#include <gnuradio/blocks/file_sink.h>
|
||||
//#include <gnuradio/gr_throttle.h>
|
||||
#include <gnuradio/blocks/throttle.h>
|
||||
#include <gnuradio/hier_block2.h>
|
||||
#include <gnuradio/msg_queue.h>
|
||||
|
|
@ -101,7 +98,7 @@ public:
|
|||
}
|
||||
|
||||
private:
|
||||
long samples_;
|
||||
unsigned long long samples_;
|
||||
long sampling_frequency_;
|
||||
std::string filename_;
|
||||
std::string item_type_;
|
||||
|
|
@ -111,12 +108,9 @@ private:
|
|||
std::string role_;
|
||||
unsigned int in_streams_;
|
||||
unsigned int out_streams_;
|
||||
// gr_file_source_sptr file_source_;
|
||||
gr::blocks::file_source::sptr file_source_;
|
||||
//gr_block_sptr valve_;
|
||||
boost::shared_ptr<gr::block> valve_;
|
||||
gr::blocks::file_sink::sptr sink_;
|
||||
// gr_block_sptr throttle_;
|
||||
gr::blocks::throttle::sptr throttle_;
|
||||
boost::shared_ptr<gr::msg_queue> queue_;
|
||||
size_t item_size_;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,333 @@
|
|||
/*!
|
||||
* \file nsr_file_signal_source.cc
|
||||
* \brief Implementation of a class that reads signals samples from a NSR 2 bits sampler front-end file
|
||||
* and adapts it to a SignalSourceInterface. More information about the front-end here
|
||||
* http://www.ifen.com/products/sx-scientific-gnss-solutions/nsr-software-receiver.html
|
||||
* \author Javier Arribas, 2013 jarribas(at)cttc.es
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2013 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is 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 "nsr_file_signal_source.h"
|
||||
#include "gnss_sdr_valve.h"
|
||||
#include "configuration_interface.h"
|
||||
#include <string>
|
||||
#include <iostream>
|
||||
#include <fstream>
|
||||
#include <iomanip>
|
||||
#include <exception>
|
||||
#include <gflags/gflags.h>
|
||||
#include <glog/log_severity.h>
|
||||
#include <glog/logging.h>
|
||||
|
||||
using google::LogMessage;
|
||||
|
||||
DEFINE_string(nsr_signal_source, "-",
|
||||
"If defined, path to the file containing the NSR (byte to 2-bit packed) signal samples (overrides the configuration file)");
|
||||
|
||||
|
||||
NsrFileSignalSource::NsrFileSignalSource(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 = "byte";
|
||||
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_nsr_signal_source.compare("-") != 0) filename_= FLAGS_nsr_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("byte") == 0)
|
||||
{
|
||||
item_size_ = sizeof(char);
|
||||
}
|
||||
else
|
||||
{
|
||||
LOG_AT_LEVEL(WARNING) << item_type_
|
||||
<< " unrecognized item type. Using byte.";
|
||||
item_size_ = sizeof(char);
|
||||
}
|
||||
try
|
||||
{
|
||||
file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
|
||||
unpack_byte_ = make_unpack_byte_2bit_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 the configuration at "
|
||||
<< "conf/gnss-sdr.conf (the default configuration file)"
|
||||
<< std::endl
|
||||
<< "and point SignalSource.filename to a valid file,"
|
||||
<< std::endl
|
||||
<< "or specify your own receiver and source with the flag"
|
||||
<< std::endl
|
||||
<<"gnss-sdr --config_file=my_GNSS_SDR_configuration.conf"
|
||||
<< std::endl;
|
||||
LOG_AT_LEVEL(INFO) << "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();
|
||||
DLOG(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_AT_LEVEL(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=4; // 1 byte -> 4 samples
|
||||
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_);
|
||||
DLOG(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_;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
NsrFileSignalSource::~NsrFileSignalSource()
|
||||
{}
|
||||
|
||||
|
||||
|
||||
|
||||
void NsrFileSignalSource::connect(gr::top_block_sptr top_block)
|
||||
{
|
||||
if (samples_ > 0)
|
||||
{
|
||||
if (enable_throttle_control_ == true)
|
||||
{
|
||||
top_block->connect(file_source_, 0, unpack_byte_, 0);
|
||||
top_block->connect(unpack_byte_, 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_byte_, 0);
|
||||
top_block->connect(unpack_byte_, 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_byte_, 0);
|
||||
top_block->connect(unpack_byte_, 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_byte_, 0);
|
||||
top_block->connect(unpack_byte_, 0, sink_, 0);
|
||||
DLOG(INFO) << "connected file source to sink";
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
void NsrFileSignalSource::disconnect(gr::top_block_sptr top_block)
|
||||
{
|
||||
if (samples_ > 0)
|
||||
{
|
||||
if (enable_throttle_control_ == true)
|
||||
{
|
||||
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
|
||||
DLOG(INFO) << "disconnected file source to unpack_byte_";
|
||||
top_block->connect(unpack_byte_, 0,throttle_,0);
|
||||
DLOG(INFO) << "disconnected unpack_byte_ 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_byte_, 0);
|
||||
DLOG(INFO) << "disconnected file source to unpack_byte_";
|
||||
top_block->disconnect(unpack_byte_, 0, valve_, 0);
|
||||
DLOG(INFO) << "disconnected unpack_byte_ 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_byte_, 0);
|
||||
DLOG(INFO) << "disconnected file source to unpack_byte_";
|
||||
top_block->disconnect(unpack_byte_, 0, throttle_, 0);
|
||||
DLOG(INFO) << "disconnected unpack_byte_ to throttle";
|
||||
if (dump_)
|
||||
{
|
||||
top_block->disconnect(unpack_byte_, 0, sink_, 0);
|
||||
DLOG(INFO) << "disconnected funpack_byte_ to sink";
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (dump_)
|
||||
{
|
||||
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
|
||||
DLOG(INFO) << "disconnected file source to unpack_byte_";
|
||||
top_block->disconnect(unpack_byte_, 0, sink_, 0);
|
||||
DLOG(INFO) << "disconnected unpack_byte_ to sink";
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
gr::basic_block_sptr NsrFileSignalSource::get_left_block()
|
||||
{
|
||||
LOG_AT_LEVEL(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 NsrFileSignalSource::get_right_block()
|
||||
{
|
||||
if (samples_ > 0)
|
||||
{
|
||||
return valve_;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (enable_throttle_control_ == true)
|
||||
{
|
||||
return throttle_;
|
||||
}
|
||||
else
|
||||
{
|
||||
return unpack_byte_;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,123 @@
|
|||
/*!
|
||||
* \file nsr_file_signal_source.h
|
||||
* \brief Implementation of a class that reads signals samples from a NSR 2 bits sampler front-end file
|
||||
* and adapts it to a SignalSourceInterface. More information about the front-end here
|
||||
* http://www.ifen.com/products/sx-scientific-gnss-solutions/nsr-software-receiver.html
|
||||
* \author Javier Arribas, 2013 jarribas(at)cttc.es
|
||||
*
|
||||
* This class represents a file signal source.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is 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_NSR_FILE_SIGNAL_SOURCE_H_
|
||||
#define GNSS_SDR_NSR_FILE_SIGNAL_SOURCE_H_
|
||||
|
||||
#include "gnss_block_interface.h"
|
||||
#include <gnuradio/blocks/file_source.h>
|
||||
#include "unpack_byte_2bit_samples.h"
|
||||
#include <gnuradio/blocks/file_sink.h>
|
||||
#include <gnuradio/blocks/throttle.h>
|
||||
#include <gnuradio/hier_block2.h>
|
||||
#include <gnuradio/msg_queue.h>
|
||||
|
||||
class ConfigurationInterface;
|
||||
|
||||
/*!
|
||||
* \brief Class that reads signals samples from a file
|
||||
* and adapts it to a SignalSourceInterface
|
||||
*/
|
||||
class NsrFileSignalSource: public GNSSBlockInterface
|
||||
{
|
||||
public:
|
||||
NsrFileSignalSource(ConfigurationInterface* configuration, std::string role,
|
||||
unsigned int in_streams, unsigned int out_streams,
|
||||
boost::shared_ptr<gr::msg_queue> queue);
|
||||
|
||||
virtual ~NsrFileSignalSource();
|
||||
std::string role()
|
||||
{
|
||||
return role_;
|
||||
}
|
||||
|
||||
/*!
|
||||
* \brief Returns "Nsr_File_Signal_Source".
|
||||
*/
|
||||
std::string implementation()
|
||||
{
|
||||
return "Nsr_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_byte_2bit_samples_sptr unpack_byte_;
|
||||
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_NSR_FILE_SIGNAL_SOURCE_H_*/
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
# Copyright (C) 2012-2013 (see AUTHORS file for a list of contributors)
|
||||
#
|
||||
# This file is 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/>.
|
||||
#
|
||||
|
||||
|
||||
set(SIGNAL_SOURCE_GR_BLOCKS_SOURCES
|
||||
unpack_byte_2bit_samples.cc
|
||||
)
|
||||
|
||||
include_directories(
|
||||
$(CMAKE_CURRENT_SOURCE_DIR)
|
||||
${GLOG_INCLUDE_DIRS}
|
||||
${GFlags_INCLUDE_DIRS}
|
||||
${GNURADIO_RUNTIME_INCLUDE_DIRS}
|
||||
)
|
||||
|
||||
add_library(signal_source_gr_blocks ${SIGNAL_SOURCE_GR_BLOCKS_SOURCES})
|
||||
target_link_libraries(signal_source_gr_blocks ${GNURADIO_RUNTIME_LIBRARIES})
|
||||
|
|
@ -0,0 +1,87 @@
|
|||
/*!
|
||||
* \file unpack_byte_2bit_samples.cc
|
||||
*
|
||||
* \brief Unpacks byte samples to NSR 2 bits samples
|
||||
* \author Javier Arribas jarribas (at) cttc.es
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is 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_byte_2bit_samples.h"
|
||||
#include <iostream>
|
||||
#include <gnuradio/io_signature.h>
|
||||
|
||||
struct byte_2bit_struct
|
||||
{
|
||||
signed two_bit_sample:2; // <- 2 bits wide only
|
||||
};
|
||||
|
||||
|
||||
unpack_byte_2bit_samples_sptr make_unpack_byte_2bit_samples()
|
||||
{
|
||||
return unpack_byte_2bit_samples_sptr(new unpack_byte_2bit_samples());
|
||||
}
|
||||
|
||||
unpack_byte_2bit_samples::unpack_byte_2bit_samples()
|
||||
: sync_interpolator("unpack_byte_2bit_samples",
|
||||
gr::io_signature::make(1, 1,sizeof(signed char)),
|
||||
gr::io_signature::make(1, 1,sizeof(float)),
|
||||
4)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
unpack_byte_2bit_samples::~unpack_byte_2bit_samples()
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
int unpack_byte_2bit_samples::work(int noutput_items,gr_vector_const_void_star &input_items,
|
||||
gr_vector_void_star &output_items)
|
||||
{
|
||||
const signed char *in = (const signed char *)input_items[0];
|
||||
float *out = (float*)output_items[0];
|
||||
|
||||
byte_2bit_struct sample;
|
||||
int n=0;
|
||||
for(int i = 0; i < noutput_items/4; i++) {
|
||||
// Read packed input sample (1 byte = 4 samples)
|
||||
signed char c = in[i];
|
||||
sample.two_bit_sample=c & 3;
|
||||
out[n++]=(float)sample.two_bit_sample;
|
||||
|
||||
sample.two_bit_sample=(c>>2) & 3;
|
||||
out[n++]=(float)sample.two_bit_sample;
|
||||
|
||||
sample.two_bit_sample=(c>>4) & 3;
|
||||
out[n++]=(float)sample.two_bit_sample;
|
||||
|
||||
sample.two_bit_sample=(c>>6) & 3;
|
||||
out[n++]=(float)sample.two_bit_sample;
|
||||
|
||||
}
|
||||
|
||||
return noutput_items;
|
||||
}
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
/*!
|
||||
* \file unpack_byte_2bit_samples.h
|
||||
*
|
||||
* \brief Unpacks byte samples to NSR 2 bits samples
|
||||
* \author Javier Arribas jarribas (at) cttc.es
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is 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_byte_2bit_samples_H
|
||||
#define GNSS_SDR_unpack_byte_2bit_samples_H
|
||||
|
||||
#include <gnuradio/sync_interpolator.h>
|
||||
|
||||
class unpack_byte_2bit_samples;
|
||||
typedef boost::shared_ptr<unpack_byte_2bit_samples> unpack_byte_2bit_samples_sptr;
|
||||
|
||||
unpack_byte_2bit_samples_sptr make_unpack_byte_2bit_samples();
|
||||
|
||||
/*!
|
||||
* \brief This class implements conversion between byte packet samples to 2bit samples
|
||||
* 1 byte = 4 2bit samples
|
||||
*/
|
||||
class unpack_byte_2bit_samples: public gr::sync_interpolator
|
||||
{
|
||||
private:
|
||||
friend unpack_byte_2bit_samples_sptr
|
||||
make_unpack_byte_2bit_samples_sptr();
|
||||
|
||||
public:
|
||||
unpack_byte_2bit_samples();
|
||||
~unpack_byte_2bit_samples();
|
||||
int work (int noutput_items,gr_vector_const_void_star &input_items,
|
||||
gr_vector_void_star &output_items);
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -34,6 +34,7 @@ include_directories(
|
|||
${CMAKE_SOURCE_DIR}/src/core/libs/supl/asn-supl
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/libs
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/signal_source/adapters
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/signal_source/gnuradio_blocks
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/output_filter/adapters
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/channel/adapters
|
||||
${CMAKE_SOURCE_DIR}/src/algorithms/channel/libs
|
||||
|
|
|
|||
|
|
@ -44,6 +44,7 @@
|
|||
#include "gnss_block_interface.h"
|
||||
#include "pass_through.h"
|
||||
#include "file_signal_source.h"
|
||||
#include "nsr_file_signal_source.h"
|
||||
#include "null_sink_output_filter.h"
|
||||
#include "file_output_filter.h"
|
||||
#include "channel.h"
|
||||
|
|
@ -286,6 +287,21 @@ GNSSBlockInterface* GNSSBlockFactory::GetBlock(
|
|||
exit(1);
|
||||
}
|
||||
}
|
||||
else if (implementation.compare("Nsr_File_Signal_Source") == 0)
|
||||
{
|
||||
try
|
||||
{
|
||||
block = new NsrFileSignalSource(configuration, role, in_streams,
|
||||
out_streams, queue);
|
||||
}
|
||||
catch (const std::exception &e)
|
||||
{
|
||||
std::cout << "GNSS-SDR program ended." << std::endl;
|
||||
LOG_AT_LEVEL(INFO) << implementation
|
||||
<< ": Source file not found";
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
else if (implementation.compare("UHD_Signal_Source") == 0)
|
||||
{
|
||||
block = new UhdSignalSource(configuration, role, in_streams,
|
||||
|
|
|
|||
Loading…
Reference in New Issue