demultiplexed signal files (interleaved I/Q byte-size files,
post-process only).
Use sample configuration file gnss-sdr_Hybrid_byte.conf to try it!
Go to http://www.iis.fraunhofer.de/de/ff/lok/leist/test/flexiband.html
to obtain free captures from Fraunhofer
Created individual gnuradio tracking block for volk:
galileo_volk_e1_dll_pll_veml_tracking_cc
the galileo_volk_e1_dll_pll_veml_tracking_cc gnuradio block is now the
original one.
decoding: Changes in the flowgraph and in the configuration files to mix
channels from different GNSS systems in the same receiver. Hybrid
observables and PVT under construction.
The changes in the configuration file parameter names are NOT backward
compatible. The receiver can still work as usual in single GNSS system
mode but some modification on configuration files are required. Use the
example provided of Hybrid configuration file.
gps_l1_ca_pcps_multithread_acquisition
gps_l1_ca_pcps_tong_acquisition
galileo_e1_pcps_cccwsr_ambiguous_acquisition
galileo_e1_pcps_tong_ambiguous_acquisition
galileo_e1_pcps_8ms_ambiguous_acquisition
and test for all the algorithms.
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@411 64b25241-fba3-4117-9849-534c7e92360d
· Bug fixed in the configuration parser that prevented the use of non-integer thresholds
· Provisional patch added to disable the PVT output if the height is above 50 km (due to a random bug that appears with some satellite configurations..)
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@407 64b25241-fba3-4117-9849-534c7e92360d
- Some channel and acquisition properties are now common for all channels
- You can choose between channel-specific properties or properties common to all
- Updating config file with the new options
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@360 64b25241-fba3-4117-9849-534c7e92360d
- The local code replica is pre-initialized and resampled to the nominal PRN code sample rate (no code Doppler correction)
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@242 64b25241-fba3-4117-9849-534c7e92360d
- Added a pre-compiled custom GN3S firmware.
- Added a fully-compliant GNU Radio source block for GN3S USB dongle. It can be used also from GNU Radio companion and from Python applications.
- Added a new GN3S_Signal_Source block. It is possible to disable the GN3S signal source compilation. See README.
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@217 64b25241-fba3-4117-9849-534c7e92360d
1) Galileo E1 Acquisition adapter block added (Gnuradio block modification to use the same block with the 2 systems with 2 adapters)
2) Tests and signal samples for Galileo E1 Acquisition signal block
3) Library for Galileo E1 signal processing
4) Galileo_E1.h with constant variables for this system
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@209 64b25241-fba3-4117-9849-534c7e92360d
- Fir_Filter implementation for InputFilter block in SignalConditioner
- Tests for InputFilter and Resampler
- Fixed some bugs
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@176 64b25241-fba3-4117-9849-534c7e92360d
./gnss-sdr --config_file="my_receiver.conf"
and another --signal_source flag that, if specified, overrides the file in the configuration:
./gnss-sdr --signal_source=/path/to/file.dat
Requires gflags 1.6 or later.
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@100 64b25241-fba3-4117-9849-534c7e92360d
- The executable file and the default configuration file is now changed from "./install/mercurio" and "./conf/mercurio.conf" to "./install/gnss-sdr" and "./conf/gnss-sdr.conf", respectively.
- Configuration file structure changed to define in a single entry the internal sampling frequency (after the signal conditioner). NOTICE that this change affects the all the adapters (acquisition, tracking, telemetry_decoder, observables, and PVT). All the adapters are now modified to work with this feature.
- Moved several in-line GPS L1 CA parameters (a.k.a magic numbers..) to ./src/core/system_parameters/GPS_L1_CA.h definition file.
- Tracking blocks now uses DOUBLE values in their outputs.
- Observables and PVT now are separated. PVT and their associated libraries are moved to ./src/algorithms/PVT
- Temporarily disabled the RINEX output (I am working on that!)
- GNSS-SDR screen output now gives extended debug information of the receiver status and events. In the future, this output will be redirected to a log file.
- Bug fixes:
- FILE_SIGNAL_SOURCE now works correctly when the user configures GNSS-SDR to process the entire file.
- GPS_L1_CA_DLL_PLL now computes correctly the PRN start values.
- GPS_L1_CA_DLL_FLL_PLL now computes correctly the PRN start values.
- Several modifications in GPS_L1_CA_Telemetry_Decoder, GPS_L1_CA_Observables, and GPS_L1_CA_PVT modules to fix the GPS position computation.
- New features
- Tracking blocks perform a signal integrity check against NaN outliers before the correlation process.
- Tracking and PVT binary dump options are now documented and we provide MATLAB libraries and sample files to read it. Available in ./utils/matlab" and "./utils/matlab/libs"
- Observables output rate can be configured. This option enables the GPS L1 CA PVT computation at a maximum rate of 1ms.
- GPS_L1_CA_PVT now can perform a moving average Latitude, Longitude, and Altitude output for each of the Observables output. It is configurable using the configuration file.
- Added Google Earth compatible Keyhole Markup Language (KML) output writer class (./src/algorithms/PVT/libs/kml_printer.h and ./src/algorithms/PVT/libs/kml_printer.cc ). You can see the receiver position directly using Google Earth.
- We provide a master configuration file which includes an in-line documentation with all the new (and old) options. It can be found in ./conf/master.conf
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@84 64b25241-fba3-4117-9849-534c7e92360d
New tracking libraries:
- tracking_discriminators: Library with a set of code tracking and carrier tracking discriminators that is used by the tracking algorithms. (fully documented, including math algorithms using doxygen!)
- tracking_2rd_DLL_filter: Class that implements 2 order DLL filter for code tracking loop.
- tracking_2rd_PLL_filter: Class that implements 2 order PLL filter for carrier tracking loop.
- tracking_FLL_PLL_filter: Class that implements hybrid FLL and PLL filter for tracking carrier loop.
- CN_estimators: Library with a set of Carrier to Noise estimators and lock detectors. (fully documented, including math algorithms using doxygen!)
Tracking:
- gps_l1_ca_dll_pll_tracking: The existing DLL + PLL tracking module, which is the K.Borre and D.Akos one, is now completely re-factored. Now uses the above described libraries.
- gps_l1_ca_dll_fll_pll_tracking: This is a brand new tracking module, which implements the FLL assisted PLL described in Kaplan (2nd edition). (also documentedwith references)
Configuration options:
- The following tracking parameters are added:
;######### TRACKING CONFIG ############
; Tracking.implementation=GPS_L1_CA_DLL_PLL_Tracking or GPS_L1_CA_DLL_FLL_PLL_Tracking
Tracking.implementation=GPS_L1_CA_DLL_FLL_PLL_Tracking
;PLL filter bandwidth in Hz.
Tracking.pll_bw_hz=50.0;
;DLL filter bandwidth in Hz.
Tracking.dll_bw_hz=2.0;
;FLL filter bandwidth in Hz.
Tracking.fll_bw_hz=50;
;filter order: choice between 2 or 3 at this moment, only for FLL assisted PLL
Tracking.order=2;
;Correlator space in chips units
Tracking.early_late_space_chips=0.5;
Other files have also been modified with minor changes to adapt to new modules or minor bug fixes.
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@80 64b25241-fba3-4117-9849-534c7e92360d
