[hamradio-commits] [gnss-sdr] 07/27: Added support for new features of Flexiband GNURadio driver developed by CTTC: Now it is possible to read signal from USB front-end frames captured by Flexiband native driver.
Carles Fernandez
carles_fernandez-guest at moszumanska.debian.org
Fri May 1 08:09:22 UTC 2015
This is an automated email from the git hooks/post-receive script.
carles_fernandez-guest pushed a commit to branch next
in repository gnss-sdr.
commit a709874df4cbc1fb54d2bb03b5e05442dcf2094b
Author: Javier <jarribas at cttc.es>
Date: Wed Apr 15 17:56:51 2015 +0200
Added support for new features of Flexiband GNURadio driver developed by
CTTC: Now it is possible to read signal from USB front-end frames
captured by Flexiband native driver.
---
conf/gnss-sdr_Galileo_E5a_IFEN_CTTC.conf | 415 +++++++++++++++++++++
.../adapters/flexiband_signal_source.cc | 5 +-
.../adapters/flexiband_signal_source.h | 2 +
3 files changed, 421 insertions(+), 1 deletion(-)
diff --git a/conf/gnss-sdr_Galileo_E5a_IFEN_CTTC.conf b/conf/gnss-sdr_Galileo_E5a_IFEN_CTTC.conf
new file mode 100644
index 0000000..510156d
--- /dev/null
+++ b/conf/gnss-sdr_Galileo_E5a_IFEN_CTTC.conf
@@ -0,0 +1,415 @@
+; 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=50000000
+
+;######### CONTROL_THREAD CONFIG ############
+ControlThread.wait_for_flowgraph=false
+
+;######### SUPL RRLP GPS assistance configuration #####
+;GNSS-SDR.SUPL_gps_enabled=false
+;GNSS-SDR.SUPL_read_gps_assistance_xml=false
+;GNSS-SDR.SUPL_gps_ephemeris_server=supl.nokia.com
+;GNSS-SDR.SUPL_gps_ephemeris_port=7275
+;GNSS-SDR.SUPL_gps_acquisition_server=supl.google.com
+;GNSS-SDR.SUPL_gps_acquisition_port=7275
+;GNSS-SDR.SUPL_MCC=244
+;GNSS-SDR.SUPL_MNS=5
+;GNSS-SDR.SUPL_LAC=0x59e2
+;GNSS-SDR.SUPL_CI=0x31b0
+
+;######### SIGNAL_SOURCE CONFIG ############
+;#implementation: Use [File_Signal_Source] or [UHD_Signal_Source] or [GN3S_Signal_Source] (experimental)
+SignalSource.implementation=File_Signal_Source
+
+;#filename: path to file with the captured GNSS signal samples to be processed
+;SignalSource.filename=/home/marc/E5a_acquisitions/signal_source_5X_primary.dat
+;SignalSource.filename=/home/marc/E5a_acquisitions/galileo_E5_8M_r2_upsampled_12.dat
+;SignalSource.filename=/home/marc/E5a_acquisitions/Tiered_sim_4sat_stup4_2s_up.dat
+;SignalSource.filename=/home/marc/E5a_acquisitions/signal_source_sec21M_long.dat
+SignalSource.filename=/datalogger/captures/Galileo_E5ab_IFEN_CTTC_run1.dat
+
+
+
+;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
+SignalSource.item_type=gr_complex
+
+;#sampling_frequency: Original Signal sampling frequency in [Hz]
+SignalSource.sampling_frequency=50000000
+
+;#freq: RF front-end center frequency in [Hz]
+SignalSource.freq=1176450000
+
+;#gain: Front-end Gain in [dB]
+SignalSource.gain=50
+
+;#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
+
+;######### 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
+
+;#dump: Dump the filtered data to a file.
+InputFilter.dump=false
+
+;#dump_filename: Log path and filename.
+InputFilter.dump_filename=../data/input_filter.dat
+
+;#The following options are used in the filter design of Fir_Filter and Freq_Xlating_Fir_Filter implementation.
+;#These options are based on parameters of gnuradio's function: gr_remez.
+;#These function calculates the optimal (in the Chebyshev/minimax sense) FIR filter inpulse reponse given a set of band edges, the desired reponse on those bands, and the weight given to the error in those bands.
+
+;#input_item_type: Type and resolution for input signal samples. Use only gr_complex in this version.
+InputFilter.input_item_type=gr_complex
+
+;#outut_item_type: Type and resolution for output filtered signal samples. Use only gr_complex in this version.
+InputFilter.output_item_type=gr_complex
+
+;#taps_item_type: Type and resolution for the taps of the filter. Use only float in this version.
+InputFilter.taps_item_type=float
+
+;#number_of_taps: Number of taps in the filter. Increasing this parameter increases the processing time
+InputFilter.number_of_taps=5
+
+;#number_of _bands: Number of frequency bands in the filter.
+InputFilter.number_of_bands=2
+
+;#bands: frequency at the band edges [ b1 e1 b2 e2 b3 e3 ...].
+;#Frequency is in the range [0, 1], with 1 being the Nyquist frequency (Fs/2)
+;#The number of band_begin and band_end elements must match the number of bands
+
+InputFilter.band1_begin=0.0
+InputFilter.band1_end=0.45
+InputFilter.band2_begin=0.55
+InputFilter.band2_end=1.0
+
+;#ampl: desired amplitude at the band edges [ a(b1) a(e1) a(b2) a(e2) ...].
+;#The number of ampl_begin and ampl_end elements must match the number of bands
+
+InputFilter.ampl1_begin=1.0
+InputFilter.ampl1_end=1.0
+InputFilter.ampl2_begin=0.0
+InputFilter.ampl2_end=0.0
+
+;#band_error: weighting applied to each band (usually 1).
+;#The number of band_error elements must match the number of bands
+InputFilter.band1_error=1.0
+InputFilter.band2_error=1.0
+
+;#filter_type: one of "bandpass", "hilbert" or "differentiator"
+InputFilter.filter_type=bandpass
+
+;#grid_density: determines how accurately the filter will be constructed.
+;The minimum value is 16; higher values are slower to compute the filter.
+InputFilter.grid_density=16
+
+;#The following options are used only in Freq_Xlating_Fir_Filter implementation.
+;#InputFilter.IF is the intermediate frequency (in Hz) shifted down to zero Hz
+
+InputFilter.sampling_frequency=50000000
+InputFilter.IF=-15345000
+
+;# Decimation factor after the frequency tranaslating block
+InputFilter0.decimation_factor=1
+
+
+;######### 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=8000000
+
+;#sample_freq_out: the desired sample frequency of the output signal
+Resampler.sample_freq_out=4000000
+
+
+;######### CHANNELS GLOBAL CONFIG ############
+;#count: Number of available satellite channels.
+Channels_Galileo.count=1
+;#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=Galileo
+
+;#signal:
+;# "1C" GPS L1 C/A
+;# "1P" GPS L1 P
+;# "1W" GPS L1 Z-tracking and similar (AS on)
+;# "1Y" GPS L1 Y
+;# "1M" GPS L1 M
+;# "1N" GPS L1 codeless
+;# "2C" GPS L2 C/A
+;# "2D" GPS L2 L1(C/A)+(P2-P1) semi-codeless
+;# "2S" GPS L2 L2C (M)
+;# "2L" GPS L2 L2C (L)
+;# "2X" GPS L2 L2C (M+L)
+;# "2P" GPS L2 P
+;# "2W" GPS L2 Z-tracking and similar (AS on)
+;# "2Y" GPS L2 Y
+;# "2M" GPS GPS L2 M
+;# "2N" GPS L2 codeless
+;# "5I" GPS L5 I
+;# "5Q" GPS L5 Q
+;# "5X" GPS L5 I+Q
+;# "1C" GLONASS G1 C/A
+;# "1P" GLONASS G1 P
+;# "2C" GLONASS G2 C/A (Glonass M)
+;# "2P" GLONASS G2 P
+;# "1A" GALILEO E1 A (PRS)
+;# "1B" GALILEO E1 B (I/NAV OS/CS/SoL)
+;# "1C" GALILEO E1 C (no data)
+;# "1X" GALILEO E1 B+C
+;# "1Z" GALILEO E1 A+B+C
+;# "5I" GALILEO E5a I (F/NAV OS)
+;# "5Q" GALILEO E5a Q (no data)
+;# "5X" GALILEO E5a I+Q
+;# "7I" GALILEO E5b I
+;# "7Q" GALILEO E5b Q
+;# "7X" GALILEO E5b I+Q
+;# "8I" GALILEO E5 I
+;# "8Q" GALILEO E5 Q
+;# "8X" GALILEO E5 I+Q
+;# "6A" GALILEO E6 A
+;# "6B" GALILEO E6 B
+;# "6C" GALILEO E6 C
+;# "6X" GALILEO E6 B+C
+;# "6Z" GALILEO E6 A+B+C
+;# "1C" SBAS L1 C/A
+;# "5I" SBAS L5 I
+;# "5Q" SBAS L5 Q
+;# "5X" SBAS L5 I+Q
+;# "2I" COMPASS E2 I
+;# "2Q" COMPASS E2 Q
+;# "2X" COMPASS E2 IQ
+;# "7I" COMPASS E5b I
+;# "7Q" COMPASS E5b Q
+;# "7X" COMPASS E5b IQ
+;# "6I" COMPASS E6 I
+;# "6Q" COMPASS E6 Q
+;# "6X" COMPASS E6 IQ
+;#if the option is disabled by default is assigned "1C" GPS L1 C/A
+Channel.signal=5X
+
+;######### SPECIFIC CHANNELS CONFIG ######
+;#The following options are specific to each channel and overwrite the generic options
+
+;######### CHANNEL 0 CONFIG ############
+
+Channel0.system=Galileo
+Channel0.signal=5X
+
+;#satellite: Satellite PRN ID for this channel. Disable this option to random search
+Channel0.satellite=19
+;Channel0.repeat_satellite=true
+
+;######### CHANNEL 1 CONFIG ############
+
+;Channel1.system=Galileo
+;Channel1.signal=5Q
+;Channel1.satellite=12
+
+;######### CHANNEL 2 CONFIG ############
+
+;Channel2.system=Galileo
+;Channel2.signal=5Q
+;Channel2.satellite=11
+
+;######### CHANNEL 3 CONFIG ############
+
+;Channel3.system=Galileo
+;Channel3.signal=5Q
+;Channel3.satellite=20
+
+;######### ACQUISITION GLOBAL CONFIG ############
+
+;#dump: Enable or disable the acquisition internal data file logging [true] or [false]
+Acquisition_Galileo.dump=false
+;#filename: Log path and filename
+Acquisition_Galileo.dump_filename=./acq_dump.dat
+;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
+Acquisition_Galileo.item_type=gr_complex
+;#if: Signal intermediate frequency in [Hz]
+Acquisition_Galileo.if=0
+;#sampled_ms: Signal block duration for the acquisition signal detection [ms]
+Acquisition_Galileo.coherent_integration_time_ms=1
+;#implementation: Acquisition algorithm selection for this channel: [GPS_L1_CA_PCPS_Acquisition] or [Galileo_E1_PCPS_Ambiguous_Acquisition]
+Acquisition_Galileo.implementation=Galileo_E5a_Noncoherent_IQ_Acquisition_CAF
+;#threshold: Acquisition threshold. It will be ignored if pfa is defined.
+Acquisition_Galileo.threshold=0.002
+;#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_Galileo.pfa=0.0003
+;#doppler_max: Maximum expected Doppler shift [Hz]
+Acquisition_Galileo.doppler_max=10000
+;#doppler_max: Doppler step in the grid search [Hz]
+Acquisition_Galileo.doppler_step=250
+;#bit_transition_flag: Enable or disable a strategy to deal with bit transitions in GPS signals: process two dwells and take
+;maximum test statistics. Only use with implementation: [GPS_L1_CA_PCPS_Acquisition] (should not be used for Galileo_E1_PCPS_Ambiguous_Acquisition])
+Acquisition_Galileo.bit_transition_flag=false
+;#max_dwells: Maximum number of consecutive dwells to be processed. It will be ignored if bit_transition_flag=true
+Acquisition_Galileo.max_dwells=1
+
+;#CAF filter: **Only for E5a** Resolves doppler ambiguity averaging the specified BW in the winner code delay. If set to 0 CAF filter is desactivated. Recommended value 3000 Hz
+Acquisition_Galileo.CAF_window_hz=0
+;#Zero_padding: **Only for E5a** Avoids power loss and doppler ambiguity in bit transitions by correlating one code with twice the input data length, ensuring that at least one full code is present without transitions.
+;#If set to 1 it is ON, if set to 0 it is OFF.
+Acquisition_Galileo.Zero_padding=0
+
+
+
+;######### TRACKING GLOBAL CONFIG ############
+
+;#implementation: Selected tracking algorithm: [GPS_L1_CA_DLL_PLL_Tracking] or [GPS_L1_CA_DLL_FLL_PLL_Tracking]
+Tracking_Galileo.implementation=Galileo_E5a_DLL_PLL_Tracking
+;#item_type: Type and resolution for each of the signal samples. Use only [gr_complex] in this version.
+Tracking_Galileo.item_type=gr_complex
+
+;#sampling_frequency: Signal Intermediate Frequency in [Hz]
+Tracking_Galileo.if=0
+
+;#dump: Enable or disable the Tracking internal binary data file logging [true] or [false]
+Tracking_Galileo.dump=true
+
+;#dump_filename: Log path and filename. Notice that the tracking channel will add "x.dat" where x is the channel number.
+Tracking_Galileo.dump_filename=./tracking_ch_
+
+;#pll_bw_hz_init: **Only for E5a** PLL loop filter bandwidth during initialization [Hz]
+Tracking_Galileo.pll_bw_hz_init=20.0;
+;#dll_bw_hz_init: **Only for E5a** DLL loop filter bandwidth during initialization [Hz]
+Tracking_Galileo.dll_bw_hz_init=20.0;
+;#dll_ti_ms: **Only for E5a** loop filter integration time after initialization (secondary code delay search)[ms]
+;Tracking_Galileo.ti_ms=3;
+Tracking_Galileo.ti_ms=1;
+
+;#pll_bw_hz: PLL loop filter bandwidth [Hz]
+;Tracking.pll_bw_hz=5.0;
+Tracking_Galileo.pll_bw_hz=20.0;
+
+;#dll_bw_hz: DLL loop filter bandwidth [Hz]
+;Tracking.dll_bw_hz=2.0;
+Tracking_Galileo.dll_bw_hz=20.0;
+
+;#fll_bw_hz: FLL loop filter bandwidth [Hz]
+;Tracking_Galileo.fll_bw_hz=10.0;
+
+;#order: PLL/DLL loop filter order [2] or [3]
+Tracking_Galileo.order=2;
+
+;#early_late_space_chips: correlator early-late space [chips]. Use [0.5]
+Tracking_Galileo.early_late_space_chips=0.5;
+
+;######### TELEMETRY DECODER CONFIG ############
+;#implementation: Use [GPS_L1_CA_Telemetry_Decoder] for GPS L1 C/A.
+TelemetryDecoder_Galileo.implementation=Galileo_E5a_Telemetry_Decoder
+TelemetryDecoder_Galileo.dump=false
+
+;######### OBSERVABLES CONFIG ############
+;#implementation: Use [GPS_L1_CA_Observables] for GPS L1 C/A.
+;Use [Galileo_E1B_Observables] for E5a also.
+Observables.implementation=Galileo_E1B_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.
+;Use [GALILEO_E1_PVT] for E5a also.
+PVT.implementation=GALILEO_E1_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=100
+
+;#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
diff --git a/src/algorithms/signal_source/adapters/flexiband_signal_source.cc b/src/algorithms/signal_source/adapters/flexiband_signal_source.cc
index 4e2307b..e211265 100644
--- a/src/algorithms/signal_source/adapters/flexiband_signal_source.cc
+++ b/src/algorithms/signal_source/adapters/flexiband_signal_source.cc
@@ -53,6 +53,9 @@ FlexibandSignalSource::FlexibandSignalSource(ConfigurationInterface* configurati
gain3_ = configuration->property(role + ".gain3", 0); // check gain DAC values for Flexiband frontend!
AGC_ = configuration->property(role + ".AGC", true); // enabled AGC by default
+ flag_read_file = configuration->property(role + ".flag_read_file", false); //disable read samples from file by default
+ std::string default_signal_file = "flexiband_frame_samples.bin";
+ signal_file = configuration->property(role + ".signal_file", default_signal_file);
usb_packet_buffer_size_ = configuration->property(role + ".usb_packet_buffer", 128);
@@ -61,7 +64,7 @@ FlexibandSignalSource::FlexibandSignalSource(ConfigurationInterface* configurati
if (item_type_.compare("gr_complex") == 0)
{
item_size_ = sizeof(gr_complex);
- flexiband_source_ = gr::teleorbit::frontend::make(firmware_filename_.c_str(), gain1_, gain2_, gain3_, AGC_, usb_packet_buffer_size_);
+ flexiband_source_ = gr::teleorbit::frontend::make(firmware_filename_.c_str(), gain1_, gain2_, gain3_, AGC_, usb_packet_buffer_size_, signal_file.c_str(), flag_read_file);
//create I, Q -> gr_complex type conversion blocks
for (int n = 0; n < (RF_channels_ * 2); n++)
diff --git a/src/algorithms/signal_source/adapters/flexiband_signal_source.h b/src/algorithms/signal_source/adapters/flexiband_signal_source.h
index 2a61736..a621d8e 100644
--- a/src/algorithms/signal_source/adapters/flexiband_signal_source.h
+++ b/src/algorithms/signal_source/adapters/flexiband_signal_source.h
@@ -92,6 +92,8 @@ private:
int gain3_;
int usb_packet_buffer_size_;
bool AGC_;
+ std::string signal_file;
+ bool flag_read_file;
int RF_channels_;
--
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