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Added support for the Realtek RTL2832U OsmoSDR signal source. The Rtlsdr_Signal_Source adapter compilation is optional. See GNSS-SDR README for more information.

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git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@220 64b25241-fba3-4117-9849-534c7e92360d
This commit is contained in:
Javier Arribas
2012-08-01 13:11:02 +00:00
parent 690d7c66e7
commit bc87ea4472
11 changed files with 820 additions and 147 deletions
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13
README
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@@ -104,7 +104,7 @@ $ make
$ sudo make install $ sudo make install
$ sudo ldconfig $ sudo ldconfig
Set the envirnoment variable GN3S_DRIVER=1 in order to enable the GN3S_Signal_Source in GNSS-SDR (OPTIONAL) - Set the envirnoment variable GN3S_DRIVER=1 in order to enable the GN3S_Signal_Source in GNSS-SDR (OPTIONAL)
export GN3S_DRIVER=1 export GN3S_DRIVER=1
@@ -116,6 +116,17 @@ Please copy this file to the application path. The GNSS-SDR default path is gnss
(in order to disable the GN3S_Signal_Source compilation, you should remove the GN3S_DRIVER variable and build again GNSS-SDR) (in order to disable the GN3S_Signal_Source compilation, you should remove the GN3S_DRIVER variable and build again GNSS-SDR)
- Set the envirnoment variable RTLSDR_DRIVER=1 in order to enable the Rtlsdr_Signal_Source in GNSS-SDR (OPTIONAL)
export RTLSDR_DRIVER=1
In order to compile the RTLSDR adapter you should also provide the path to the gr-osmosdr source code using:
export OSMOSDR_ROOT=/path/to/gr-osmosdr
(in order to disable the Rtlsdr_Signal_Source compilation, you should remove the RTLSDR_DRIVER variable and build again GNSS-SDR)
* Build GNSS-SDR * Build GNSS-SDR
- Go to GNSS-SDR's root directory and compile the program: - Go to GNSS-SDR's root directory and compile the program:

438
conf/gnss-sdr_rtlsdr_realtime.conf Normal file
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@@ -0,0 +1,438 @@
; 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=2000000
;######### CONTROL_THREAD CONFIG ############
ControlThread.wait_for_flowgraph=false
;######### SIGNAL_SOURCE CONFIG ############
;#implementation: Use [File_Signal_Source] or [UHD_Signal_Source] or [GN3S_Signal_Source] or [Rtlsdr_Signal_Source]
SignalSource.implementation=Rtlsdr_Signal_Source
;#filename: path to file with the captured GNSS signal samples to be processed
SignalSource.filename=/media/DATALOGGER_/signals/Agilent GPS Generator/cap2/agilent_cap2.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=2000000
;#freq: RF front-end center frequency in [Hz]
SignalSource.freq=1575420000
;#gain: Front-end Gain in [dB]
SignalSource.gain=60
;#AGC_enabled: RTLSDR AGC enabled [true or false]
SignalSource.AGC_enabled=true
;#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
;SignalConditioner.implementation=Pass_Through
;######### 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
;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=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=0.8
InputFilter.band1_end=0.85
InputFilter.band2_begin=0.90
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=2000000
InputFilter.IF=14821
;######### 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=2000000
;#sample_freq_out: the desired sample frequency of the output signal
Resampler.sample_freq_out=2000000
;######### CHANNELS GLOBAL CONFIG ############
;#count: Number of available satellite channels.
Channels.count=8
;#in_acquisition: Number of channels simultaneously acquiring
Channels.in_acquisition=1
;######### CHANNEL 0 CONFIG ############
;#system: GPS, GLONASS, GALILEO, SBAS or COMPASS
;#if the option is disabled by default is assigned GPS
Channel0.system=GPS
;#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
Channel0.signal=1C
;#satellite: Satellite PRN ID for this channel. Disable this option to random search
Channel0.satellite=15
Channel0.repeat_satellite=false
;######### CHANNEL 1 CONFIG ############
Channel1.system=GPS
Channel1.signal=1C
Channel1.satellite=18
Channel1.repeat_satellite=false
;######### CHANNEL 2 CONFIG ############
Channel2.system=GPS
Channel2.signal=1C
Channel2.satellite=16
Channel2.repeat_satellite=false
;######### CHANNEL 3 CONFIG ############
Channel3.system=GPS
Channel3.signal=1C
Channel3.satellite=21
Channel3.repeat_satellite=false
;######### CHANNEL 4 CONFIG ############
Channel4.system=GPS
Channel4.signal=1C
Channel4.satellite=3
Channel4.repeat_satellite=false
;######### CHANNEL 5 CONFIG ############
Channel5.system=GPS
Channel5.signal=1C
;Channel5.satellite=21
;Channel5.repeat_satellite=false
;######### ACQUISITION GLOBAL CONFIG ############
;#dump: Enable or disable the acquisition internal data file logging [true] or [false]
Acquisition.dump=false
;#filename: Log path and filename
Acquisition.dump_filename=./acq_dump.dat
;#item_type: Type and resolution for each of the signal samples. Use only gr_complex in this version.
Acquisition.item_type=gr_complex
;#if: Signal intermediate frequency in [Hz]
Acquisition.if=0
;#sampled_ms: Signal block duration for the acquisition signal detection [ms]
Acquisition.sampled_ms=1
;######### ACQUISITION CHANNELS CONFIG ######
;######### ACQUISITION CH 0 CONFIG ############
;#implementation: Acquisition algorithm selection for this channel: [GPS_L1_CA_PCPS_Acquisition]
Acquisition0.implementation=GPS_L1_CA_PCPS_Acquisition
;#threshold: Acquisition threshold
Acquisition0.threshold=70
;#doppler_max: Maximum expected Doppler shift [Hz]
Acquisition0.doppler_max=10000
;#doppler_max: Doppler step in the grid search [Hz]
Acquisition0.doppler_step=250
;#repeat_satellite: Use only jointly with the satellte PRN ID option.
;######### ACQUISITION CH 1 CONFIG ############
Acquisition1.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition1.threshold=70
Acquisition1.doppler_max=10000
Acquisition1.doppler_step=250
;######### ACQUISITION CH 2 CONFIG ############
Acquisition2.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition2.threshold=70
Acquisition2.doppler_max=10000
Acquisition2.doppler_step=250
;######### ACQUISITION CH 3 CONFIG ############
Acquisition3.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition3.threshold=70
Acquisition3.doppler_max=10000
Acquisition3.doppler_step=250
;######### ACQUISITION CH 4 CONFIG ############
Acquisition4.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition4.threshold=70
Acquisition4.doppler_max=10000
Acquisition4.doppler_step=250
;######### ACQUISITION CH 5 CONFIG ############
Acquisition5.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition5.threshold=50
Acquisition5.doppler_max=10000
Acquisition5.doppler_step=250
;######### ACQUISITION CH 6 CONFIG ############
Acquisition6.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition6.threshold=70
Acquisition6.doppler_max=10000
Acquisition6.doppler_step=250
;######### ACQUISITION CH 7 CONFIG ############
Acquisition7.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition7.threshold=70
Acquisition7.doppler_max=10000
Acquisition7.doppler_step=250
;######### ACQUISITION CH 8 CONFIG ############
Acquisition8.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition8.threshold=70
Acquisition8.doppler_max=10000
Acquisition8.doppler_step=250
;######### TRACKING GLOBAL CONFIG ############
;#implementation: Selected tracking algorithm: [GPS_L1_CA_DLL_PLL_Tracking] or [GPS_L1_CA_DLL_FLL_PLL_Tracking]
Tracking.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.item_type=gr_complex
;#sampling_frequency: Signal Intermediate Frequency in [Hz]
Tracking.if=0
;#dump: Enable or disable the Tracking internal binary data file logging [true] or [false]
Tracking.dump=false
;#dump_filename: Log path and filename. Notice that the tracking channel will add "x.dat" where x is the channel number.
Tracking.dump_filename=./tracking_ch_
;#pll_bw_hz: PLL loop filter bandwidth [Hz]
Tracking.pll_bw_hz=50.0;
;#dll_bw_hz: DLL loop filter bandwidth [Hz]
Tracking.dll_bw_hz=4.0;
;#fll_bw_hz: FLL loop filter bandwidth [Hz]
Tracking.fll_bw_hz=10.0;
;#order: PLL/DLL loop filter order [2] or [3]
Tracking.order=3;
;#early_late_space_chips: correlator early-late space [chips]. Use [0.5]
Tracking.early_late_space_chips=0.5;
;######### TELEMETRY DECODER CONFIG ############
;#implementation: Use [GPS_L1_CA_Telemetry_Decoder] for GPS L1 C/A.
TelemetryDecoder.implementation=GPS_L1_CA_Telemetry_Decoder
TelemetryDecoder.dump=false
;######### 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=10
;#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;
;#dump: Enable or disable the PVT internal binary data file logging [true] or [false]
PVT.dump=false
;#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
;######### 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

10
jamroot.jam
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@@ -1,10 +1,13 @@
import os ; import os ;
local GN3S_DRIVER = [ os.environ GN3S_DRIVER ] ; local GN3S_DRIVER = [ os.environ GN3S_DRIVER ] ;
local RTLSDR_DRIVER = [ os.environ RTLSDR_DRIVER ] ;
module module
{ {
#Global variable in the global module #Global variable in the global module
.GN3S_DRIVER = GN3S_DRIVER ; .GN3S_DRIVER = GN3S_DRIVER ;
.RTLSDR_DRIVER = RTLSDR_DRIVER ;
} }
@@ -30,6 +33,12 @@ if ($(GN3S_DRIVER))
lib gr-gn3s ; lib gr-gn3s ;
} }
if ($(RTLSDR_DRIVER))
{
echo "RTLSDR_DRIVER enabled" ;
lib gnuradio-osmosdr ;
}
project project
: usage-requirements <include>. : usage-requirements <include>.
; ;
@@ -77,6 +86,7 @@ project : requirements
<include>$GNURADIO_ROOT/gnuradio-core/src/lib/gengen <include>$GNURADIO_ROOT/gnuradio-core/src/lib/gengen
<include>$GNURADIO_ROOT/gr-uhd/include <include>$GNURADIO_ROOT/gr-uhd/include
<include>$GNURADIO_ROOT/volk/lib <include>$GNURADIO_ROOT/volk/lib
<include>$OSMOSDR_ROOT/include/osmosdr
<include>$(GTEST_DIR)/include <include>$(GTEST_DIR)/include
<threading>multi <threading>multi
<toolset>darwin:<include>/opt/local/include ; <toolset>darwin:<include>/opt/local/include ;

5
src/algorithms/signal_source/adapters/jamfile.jam
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@@ -2,6 +2,7 @@ project : build-dir ../../../../build ;
#ECHO Global: [ VARNAMES ] ; #ECHO Global: [ VARNAMES ] ;
local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ; local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ;
local RTLSDR_DRIVER = [ modules.peek : RTLSDR_DRIVER ] ;
obj file_signal_source : file_signal_source.cc ; obj file_signal_source : file_signal_source.cc ;
obj uhd_signal_source : uhd_signal_source.cc ; obj uhd_signal_source : uhd_signal_source.cc ;
@@ -11,3 +12,7 @@ if ($(GN3S_DRIVER))
obj gn3s_signal_source : gn3s_signal_source.cc ; obj gn3s_signal_source : gn3s_signal_source.cc ;
} }
if ($(RTLSDR_DRIVER))
{
obj rtlsdr_signal_source : rtlsdr_signal_source.cc ;
}

197
src/algorithms/signal_source/adapters/rtlsdr_signal_source.cc Normal file
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@@ -0,0 +1,197 @@
/*!
* \file rtlsdr_signal_source.cc
* \brief Signal source for the Realtek RTL2832U USB dongle DVB-T receiver
* (see http://sdr.osmocom.org/trac/wiki/rtl-sdr for more information)
* \author Javier Arribas, 2012. 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 "rtlsdr_signal_source.h"
#include <osmosdr_api.h>
#include <osmosdr_source_c.h>
#include <gnuradio/gr_file_sink.h>
#include "configuration_interface.h"
#include "gnss_sdr_valve.h"
#include <glog/log_severity.h>
#include <glog/logging.h>
#include <iostream>
#include "GPS_L1_CA.h"
#include <boost/format.hpp>
using google::LogMessage;
RtlsdrSignalSource::RtlsdrSignalSource(ConfigurationInterface* configuration,
std::string role, unsigned int in_stream, unsigned int out_stream,
gr_msg_queue_sptr queue) :
role_(role), in_stream_(in_stream), out_stream_(out_stream),
queue_(queue)
{
// DUMP PARAMETERS
std::string empty = "";
std::string default_dump_file = "./data/signal_source.dat";
std::string default_item_type = "gr_complex";
samples_ = configuration->property(role + ".samples", 0);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename",
default_dump_file);
// RTLSDR Driver parameters
AGC_enabled_=configuration->property(role + ".AGC_enabled",true);
freq_ = configuration->property(role + ".freq", GPS_L1_FREQ_HZ);
gain_ = configuration->property(role + ".gain", (double)50.0);
sample_rate_ = configuration->property(role + ".sampling_frequency", (double)2.0e6);
item_type_ = configuration->property(role + ".item_type",
default_item_type);
if (item_type_.compare("short") == 0)
{
item_size_ = sizeof(short);
}
else if (item_type_.compare("gr_complex") == 0)
{
item_size_ = sizeof(gr_complex);
// 1. Make the driver instance
rtlsdr_source_ = osmosdr_make_source_c();
// 2 set sampling rate
rtlsdr_source_->set_sample_rate(sample_rate_);
std::cout << boost::format("Actual RX Rate: %f [SPS]...") % (rtlsdr_source_->get_sample_rate()) << std::endl ;
DLOG(INFO) << boost::format("Actual RX Rate: %f [SPS]...") % (rtlsdr_source_->get_sample_rate()) << std::endl;
// 3. set rx frequency
rtlsdr_source_->set_center_freq(freq_);
std::cout << boost::format("Actual RX Freq: %f [Hz]...") % (rtlsdr_source_->get_center_freq()) << std::endl ;
DLOG(INFO) << boost::format("Actual RX Freq: %f [Hz]...") % (rtlsdr_source_->get_center_freq()) << std::endl ;
// TODO: Asign the remanent IF from the PLL tune error
std::cout << boost::format("PLL Frequency tune error %f [Hz]...") % (rtlsdr_source_->get_center_freq()-freq_) ;
DLOG(INFO) << boost::format("PLL Frequency tune error %f [Hz]...") % (rtlsdr_source_->get_center_freq()-freq_) ;
// 4. set rx gain
if (this->AGC_enabled_==true)
{
rtlsdr_source_->set_gain_mode(true);
std::cout << "AGC enabled"<< std::endl;
DLOG(INFO)<< "AGC enabled"<< std::endl;
}else{
rtlsdr_source_->set_gain_mode(false);
rtlsdr_source_->set_gain(gain_);
std::cout << boost::format("Actual RX Gain: %f dB...") % rtlsdr_source_->get_gain() << std::endl;
DLOG(INFO) << boost::format("Actual RX Gain: %f dB...") % rtlsdr_source_->get_gain() << std::endl;
}
}
else
{
LOG_AT_LEVEL(WARNING) << item_type_
<< " unrecognized item type. Using short.";
item_size_ = sizeof(short);
}
if (samples_ != 0)
{
DLOG(INFO) << "Send STOP signal after " << samples_ << " samples";
valve_ = gnss_sdr_make_valve(item_size_, samples_, queue_);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
}
if (dump_)
{
DLOG(INFO) << "Dumping output into file " << dump_filename_;
file_sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << file_sink_->unique_id() << ")";
}
}
RtlsdrSignalSource::~RtlsdrSignalSource()
{
}
void RtlsdrSignalSource::connect(gr_top_block_sptr top_block)
{
if (samples_ != 0)
{
top_block->connect(rtlsdr_source_, 0, valve_, 0);
DLOG(INFO) << "connected rtlsdr source to valve";
if (dump_)
{
top_block->connect(valve_, 0, file_sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
else
{
if (dump_)
{
top_block->connect(rtlsdr_source_, 0, file_sink_, 0);
DLOG(INFO) << "connected rtlsdr source to file sink";
}
}
}
void RtlsdrSignalSource::disconnect(gr_top_block_sptr top_block)
{
if (samples_ != 0)
{
top_block->disconnect(rtlsdr_source_, 0, valve_, 0);
if (dump_)
{
top_block->disconnect(valve_, 0, file_sink_, 0);
}
}
else
{
if (dump_)
{
top_block->disconnect(rtlsdr_source_, 0, file_sink_, 0);
}
}
}
gr_basic_block_sptr RtlsdrSignalSource::get_left_block()
{
LOG_AT_LEVEL(WARNING) << "Trying to get signal source left block.";
return gr_basic_block_sptr();
}
gr_basic_block_sptr RtlsdrSignalSource::get_right_block()
{
if (samples_ != 0)
{
return valve_;
}
else
{
return rtlsdr_source_;
}
}

101
src/algorithms/signal_source/adapters/rtlsdr_signal_source.h Normal file
View File

@@ -0,0 +1,101 @@
/*!
* \file rtlsdr_signal_source.h
* \brief Signal source for the Realtek RTL2832U USB dongle DVB-T receiver
* (see http://sdr.osmocom.org/trac/wiki/rtl-sdr for more information)
* \author Javier Arribas, 2012. 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_RTLSDR_SIGNAL_SOURCE_H_
#define GNSS_SDR_RTLSDR_SIGNAL_SOURCE_H_
#include <boost/shared_ptr.hpp>
#include <osmosdr/osmosdr_source_c.h>
#include <gnuradio/gr_hier_block2.h>
#include <gnuradio/gr_msg_queue.h>
#include "gnss_block_interface.h"
class ConfigurationInterface;
/*!
* \brief This class reads samples from Realtek RTL2832U USB dongle DVB-T receiver (see http://sdr.osmocom.org/trac/wiki/rtl-sdr)
*/
class RtlsdrSignalSource: public GNSSBlockInterface
{
public:
RtlsdrSignalSource(ConfigurationInterface* configuration,
std::string role, unsigned int in_stream,
unsigned int out_stream, gr_msg_queue_sptr queue);
virtual ~RtlsdrSignalSource();
std::string role()
{
return role_;
}
std::string implementation()
{
return "Rtlsdr_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();
private:
std::string role_;
// UHD SETTINGS
bool AGC_enabled_;
double sample_rate_;
unsigned int in_stream_;
unsigned int out_stream_;
double freq_;
double gain_;
std::string item_type_;
size_t item_size_;
long samples_;
bool dump_;
std::string dump_filename_;
boost::shared_ptr<osmosdr_source_c> rtlsdr_source_;
gr_block_sptr valve_;
gr_block_sptr file_sink_;
gr_msg_queue_sptr queue_;
};
#endif /*GNSS_SDR_RTLSDR_SIGNAL_SOURCE_H_*/

12
src/core/receiver/gnss_block_factory.cc
View File

@@ -64,6 +64,10 @@
#include "gn3s_signal_source.h" #include "gn3s_signal_source.h"
#endif #endif
#if RTLSDR_DRIVER
#include "rtlsdr_signal_source.h"
#endif
using google::LogMessage; using google::LogMessage;
@@ -290,6 +294,14 @@ GNSSBlockInterface* GNSSBlockFactory::GetBlock(
} }
#endif #endif
#if RTLSDR_DRIVER
else if (implementation.compare("Rtlsdr_Signal_Source") == 0)
{
block = new RtlsdrSignalSource(configuration, role, in_streams,
out_streams, queue);
}
#endif
// DATA TYPE ADAPTER ----------------------------------------------------------- // DATA TYPE ADAPTER -----------------------------------------------------------
// INPUT FILTER ---------------------------------------------------------------- // INPUT FILTER ----------------------------------------------------------------

13
src/core/receiver/jamfile.jam
View File

@@ -6,13 +6,18 @@ obj file_configuration : file_configuration.cc ;
obj in_memory_configuration : in_memory_configuration.cc ; obj in_memory_configuration : in_memory_configuration.cc ;
local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ; local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ;
local RTLSDR_DRIVER = [ modules.peek : RTLSDR_DRIVER ] ;
if $(GN3S_DRIVER) if ($(GN3S_DRIVER))
{ {
obj gnss_block_factory : gnss_block_factory.cc : <define>GN3S_DRIVER ; GN3S_DRIVER_DEFINE = "GN3S_DRIVER" ;
} }
else
if ($(RTLSDR_DRIVER))
{ {
obj gnss_block_factory : gnss_block_factory.cc ; RTLSDR_DRIVER_DEFINE = "RTLSDR_DRIVER" ;
} }
obj gnss_block_factory : gnss_block_factory.cc : <define>$(GN3S_DRIVER_DEFINE) <define>$(RTLSDR_DRIVER_DEFINE) ;
obj gnss_flowgraph : gnss_flowgraph.cc ; obj gnss_flowgraph : gnss_flowgraph.cc ;

89
src/main/jamfile.jam
View File

@@ -1,9 +1,22 @@
project : build-dir ../../build ; project : build-dir ../../build ;
local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ; local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ;
local RTLSDR_DRIVER = [ modules.peek : RTLSDR_DRIVER ] ;
if $(GN3S_DRIVER) if ($(GN3S_DRIVER))
{ {
GN3S_DRIVER_INCLUDE1 = "../algorithms/signal_source/adapters//gn3s_signal_source" ;
GN3S_DRIVER_INCLUDE2 = "../..//gr-gn3s" ;
}
if ($(RTLSDR_DRIVER))
{
RTLSDR_DRIVER_INCLUDE1 = "../algorithms/signal_source/adapters//rtlsdr_signal_source" ;
RTLSDR_DRIVER_INCLUDE2 = "../..//gnuradio-osmosdr" ;
}
#echo $(GN3S_DRIVER_INCLUDE1)
#echo $(GN3S_DRIVER_INCLUDE2)
exe gnss-sdr : main.cc exe gnss-sdr : main.cc
../algorithms/acquisition/adapters//gps_l1_ca_pcps_acquisition ../algorithms/acquisition/adapters//gps_l1_ca_pcps_acquisition
@@ -68,74 +81,10 @@ exe gnss-sdr : main.cc
../..//uhd ../..//uhd
../..//gnuradio-uhd ../..//gnuradio-uhd
# GN3S DRIVER # GN3S DRIVER
../algorithms/signal_source/adapters//gn3s_signal_source $(GN3S_DRIVER_INCLUDE1)
../..//gr-gn3s ; $(GN3S_DRIVER_INCLUDE2)
# RTLSDR DRIVER
} $(RTLSDR_DRIVER_INCLUDE1)
else $(RTLSDR_DRIVER_INCLUDE2) ;
{
exe gnss-sdr : main.cc
../algorithms/acquisition/adapters//gps_l1_ca_pcps_acquisition
../algorithms/acquisition/adapters//galileo_e1_pcps_ambiguous_acquisition
../algorithms/acquisition/gnuradio_blocks//pcps_acquisition_cc
../algorithms/channel/adapters//channel
../algorithms/channel/libs//gps_l1_ca_channel_fsm
../algorithms/conditioner/adapters//signal_conditioner
../algorithms/input_filter/adapters//fir_filter
../algorithms/input_filter/adapters//freq_xlating_fir_filter
../algorithms/libs//gnss_signal_processing
../algorithms/libs//gps_sdr_signal_processing
../algorithms/libs//galileo_e1_signal_processing
../algorithms/libs//gnss_sdr_valve
../algorithms/libs//pass_through
../algorithms/observables/adapters//gps_l1_ca_observables
../algorithms/observables/gnuradio_blocks//gps_l1_ca_observables_cc
../algorithms/PVT/libs//rinex_printer
../algorithms/PVT/libs//kml_printer
../algorithms/PVT/libs//gps_l1_ca_ls_pvt
../algorithms/output_filter/adapters//file_output_filter
../algorithms/output_filter/adapters//null_sink_output_filter
../algorithms/resampler/adapters//direct_resampler_conditioner
../algorithms/resampler/gnuradio_blocks//direct_resampler_conditioner_cc
../algorithms/signal_source/adapters//file_signal_source
../algorithms/signal_source/adapters//uhd_signal_source
../algorithms/telemetry_decoder/adapters//gps_l1_ca_telemetry_decoder
../algorithms/telemetry_decoder/gnuradio_blocks//gps_l1_ca_telemetry_decoder_cc
../algorithms/telemetry_decoder/libs//gps_l1_ca_subframe_fsm
../algorithms/PVT/adapters//gps_l1_ca_pvt
../algorithms/PVT/gnuradio_blocks//gps_l1_ca_pvt_cc
../algorithms/tracking/adapters//gps_l1_ca_dll_pll_tracking
../algorithms/tracking/adapters//gps_l1_ca_dll_fll_pll_tracking
../algorithms/tracking/adapters//gps_l1_ca_tcp_connector_tracking
../algorithms/tracking/gnuradio_blocks//gps_l1_ca_dll_pll_tracking_cc
../algorithms/tracking/gnuradio_blocks//gps_l1_ca_dll_fll_pll_tracking_cc
../algorithms/tracking/gnuradio_blocks//gps_l1_ca_tcp_connector_tracking_cc
../algorithms/tracking/libs//tracking_discriminators
../algorithms/tracking/libs//CN_estimators
../algorithms/tracking/libs//tracking_FLL_PLL_filter
../algorithms/tracking/libs//tracking_2nd_PLL_filter
../algorithms/tracking/libs//tracking_2nd_DLL_filter
../algorithms/tracking/libs//correlator
../algorithms/tracking/libs//cordic
../algorithms/tracking/libs//tcp_communication
../core/libs//INIReader
../core/libs//ini
../core/libs//string_converter
../core/receiver//control_message_factory
../core/receiver//control_thread
../core/receiver//file_configuration
../core/receiver//in_memory_configuration
../core/receiver//gnss_block_factory
../core/receiver//gnss_flowgraph
../core/system_parameters//gps_navigation_message
../core/system_parameters//gnss_satellite
../core/system_parameters//gnss_signal
#../core/system_parameters//gnss_synchro
../..//gflags
../..//glog
../..//gnuradio-core
../..//uhd
../..//gnuradio-uhd ;
}
install ../../install : gnss-sdr ; install ../../install : gnss-sdr ;

87
src/tests/jamfile.jam
View File

@@ -1,9 +1,19 @@
project : build-dir ../../build ; project : build-dir ../../build ;
local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ; local GN3S_DRIVER = [ modules.peek : GN3S_DRIVER ] ;
local RTLSDR_DRIVER = [ modules.peek : RTLSDR_DRIVER ] ;
if $(GN3S_DRIVER) if ($(GN3S_DRIVER))
{ {
GN3S_DRIVER_INCLUDE1 = "../algorithms/signal_source/adapters//gn3s_signal_source" ;
GN3S_DRIVER_INCLUDE2 = "../..//gr-gn3s" ;
}
if ($(RTLSDR_DRIVER))
{
RTLSDR_DRIVER_INCLUDE1 = "../algorithms/signal_source/adapters//rtlsdr_signal_source" ;
RTLSDR_DRIVER_INCLUDE2 = "../..//gnuradio-osmosdr" ;
}
exe run_tests : test_main.cc exe run_tests : test_main.cc
../algorithms/acquisition/adapters//gps_l1_ca_pcps_acquisition ../algorithms/acquisition/adapters//gps_l1_ca_pcps_acquisition
@@ -68,76 +78,11 @@ exe run_tests : test_main.cc
../..//uhd ../..//uhd
../..//gnuradio-uhd ../..//gnuradio-uhd
# GN3S DRIVER # GN3S DRIVER
../algorithms/signal_source/adapters//gn3s_signal_source $(GN3S_DRIVER_INCLUDE1)
../..//gr-gn3s $(GN3S_DRIVER_INCLUDE2)
# RTLSDR DRIVER
$(RTLSDR_DRIVER_INCLUDE1)
$(RTLSDR_DRIVER_INCLUDE2)
../..//gtest : <include>$(GTEST_DIR)/include ; ../..//gtest : <include>$(GTEST_DIR)/include ;
}
else
{
exe run_tests : test_main.cc
../algorithms/acquisition/adapters//gps_l1_ca_pcps_acquisition
../algorithms/acquisition/adapters//galileo_e1_pcps_ambiguous_acquisition
../algorithms/acquisition/gnuradio_blocks//pcps_acquisition_cc
../algorithms/channel/adapters//channel
../algorithms/channel/libs//gps_l1_ca_channel_fsm
../algorithms/conditioner/adapters//signal_conditioner
../algorithms/input_filter/adapters//fir_filter
../algorithms/input_filter/adapters//freq_xlating_fir_filter
../algorithms/libs//gnss_signal_processing
../algorithms/libs//gps_sdr_signal_processing
../algorithms/libs//galileo_e1_signal_processing
../algorithms/libs//gnss_sdr_valve
../algorithms/libs//pass_through
../algorithms/observables/adapters//gps_l1_ca_observables
../algorithms/observables/gnuradio_blocks//gps_l1_ca_observables_cc
../algorithms/PVT/libs//rinex_printer
../algorithms/PVT/libs//kml_printer
../algorithms/PVT/libs//gps_l1_ca_ls_pvt
../algorithms/output_filter/adapters//file_output_filter
../algorithms/output_filter/adapters//null_sink_output_filter
../algorithms/resampler/adapters//direct_resampler_conditioner
../algorithms/resampler/gnuradio_blocks//direct_resampler_conditioner_cc
../algorithms/signal_source/adapters//file_signal_source
../algorithms/signal_source/adapters//uhd_signal_source
../algorithms/telemetry_decoder/adapters//gps_l1_ca_telemetry_decoder
../algorithms/telemetry_decoder/gnuradio_blocks//gps_l1_ca_telemetry_decoder_cc
../algorithms/telemetry_decoder/libs//gps_l1_ca_subframe_fsm
../algorithms/PVT/adapters//gps_l1_ca_pvt
../algorithms/PVT/gnuradio_blocks//gps_l1_ca_pvt_cc
../algorithms/tracking/adapters//gps_l1_ca_dll_pll_tracking
../algorithms/tracking/adapters//gps_l1_ca_dll_fll_pll_tracking
../algorithms/tracking/adapters//gps_l1_ca_tcp_connector_tracking
../algorithms/tracking/gnuradio_blocks//gps_l1_ca_dll_pll_tracking_cc
../algorithms/tracking/gnuradio_blocks//gps_l1_ca_dll_fll_pll_tracking_cc
../algorithms/tracking/gnuradio_blocks//gps_l1_ca_tcp_connector_tracking_cc
../algorithms/tracking/libs//tracking_discriminators
../algorithms/tracking/libs//CN_estimators
../algorithms/tracking/libs//tracking_FLL_PLL_filter
../algorithms/tracking/libs//tracking_2nd_PLL_filter
../algorithms/tracking/libs//tracking_2nd_DLL_filter
../algorithms/tracking/libs//correlator
../algorithms/tracking/libs//cordic
../algorithms/tracking/libs//tcp_communication
../core/libs//INIReader
../core/libs//ini
../core/libs//string_converter
../core/receiver//control_message_factory
../core/receiver//control_thread
../core/receiver//file_configuration
../core/receiver//in_memory_configuration
../core/receiver//gnss_block_factory
../core/receiver//gnss_flowgraph
../core/system_parameters//gps_navigation_message
../core/system_parameters//gnss_satellite
../core/system_parameters//gnss_signal
#../core/system_parameters//gnss_synchro
../..//gflags
../..//glog
../..//gnuradio-core
../..//uhd
../..//gnuradio-uhd
../..//gtest : <include>$(GTEST_DIR)/include ;
}
install ../../install : run_tests ; install ../../install : run_tests ;

2
src/utils/matlab/gps_l1_ca_dll_pll_plot_sample.m
View File

@@ -30,7 +30,7 @@
close all; close all;
clear all; clear all;
samplingFreq = 64e6/16; %[Hz] samplingFreq = 64e6/16; %[Hz]
channels=6; channels=4;
path='/home/javier/workspace/gnss-sdr/trunk/install/'; path='/home/javier/workspace/gnss-sdr/trunk/install/';
clear PRN_absolute_sample_start; clear PRN_absolute_sample_start;
for N=1:1:channels for N=1:1:channels