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128 Commits

Author SHA1 Message Date
Javier Arribas
d85f65ed4c Galileo E1b/c tracking improvement and code cleaning 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@255 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-24 08:02:51 +00:00
Carles Fernandez
1aea9db69f Changed the "CN_estimators" library name by the more informative "lock_detectors". The CN0 estimators for GPS L1 C/A and Galileo E1 have been unified 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@254 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-21 09:54:37 +00:00
Javier Arribas
3628453c52 - Bug in carrier lock detector algorithm corrected 
- Code cleaning and DLL/PLL variable renaming in galileo_e1_dll_pll_veml tracking

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@253 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-20 16:11:31 +00:00
Carles Fernandez
323e8e6765 Code cleaning, comments, code style fixes 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@251 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-19 16:00:40 +00:00
David Pubill
c241b7b1d6 - Added TCP connector for Galileo E1 simulink tracking 
- Added simulink-based Galileo_E1_DLL_PLL_VEML_Tracking

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@250 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-19 13:38:25 +00:00
Javier Arribas
a25e712be6 Bug correction for acquisition and tracking: acquisition Doppler sign were inverted and this issue caused several wrong interpretations in tracking algorithms, resulting in a swap in I/Q components. Now the bug was corrected in all tracking algorithms. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@249 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-18 10:24:41 +00:00
Javier Arribas
4859faa245 - PCPS Acquisition VOLK optimizations for the carrier wipeoff operation. 
-Added galileo E1 tracking matlab plot utility for 32 bits systems 

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@248 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-18 08:33:59 +00:00
Javier Arribas
bcce5431b7 Solved a bug on the Galileo PCPS acquisition where the local code replica was set to all zeros on some configurations. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@247 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-17 16:05:35 +00:00
Carles Fernandez
5b5f165d7b Some comments added, code cleaning 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@246 64b25241-fba3-4117-9849-534c7e92360d
 2012-10-16 23:02:02 +00:00
Luis Esteve
f0a0f94007 Added documentation to the code 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@245 64b25241-fba3-4117-9849-534c7e92360d
 2012-09-12 15:03:38 +00:00
Javier Arribas
02ab6ce7d7 New GPS L1 CA tracking module GpsL1CaDllPllOptimTracking optimized for speed: 
- 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
 2012-09-04 15:57:30 +00:00
Javier Arribas
0703dd2af3 Optimizations in PCPS Acquisition module: 
- Improved speed for normalization in the FFTW results
- Complex multiplications now use the SIMD instructions with VOLK library
- Carrier wipeoff now uses the GNU Radio fixed point NCO (gr_fxpt) 

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@241 64b25241-fba3-4117-9849-534c7e92360d
 2012-09-04 14:29:07 +00:00
Carles Fernandez
10a4ac60df Cleaning code and comments 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@238 64b25241-fba3-4117-9849-534c7e92360d
 2012-09-02 16:53:59 +00:00
Javier Arribas
cc02888dad Freq_xlating_fir_filter decimation factor now can be configured using GNSS-SDR configuration file. 
gnss-sdr_gn3s_realtime.conf was updated to use this feature.

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@237 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-30 15:50:10 +00:00
Javier Arribas
cee0dd320d Added TTY serial device NMEA output (Linux only) 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@236 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-29 15:32:00 +00:00
Javier Arribas
598512529f Added NMEA 2.1 protocol for PVT dump. 
This is an experimental release that only supports FILE dump operations.



git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@235 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-28 17:14:18 +00:00
Luis Esteve
45d7220dae First version of Galileo E1 DLL PLL Very Early Minus Late Tracking. Added some functions in Matlab to analyze the results. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@234 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-28 13:38:33 +00:00
Javier Arribas
c6c5decf9c Added Dilution Of Precision (DOP) values computation in the Least Squares PVT solver. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@232 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-24 10:18:21 +00:00
Carles Fernandez
7a8d4a6509 Added some const 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@227 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-04 11:39:01 +00:00
Carles Fernandez
db5d130bff added phase initialization that removes warning when compiling 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@226 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-04 08:41:32 +00:00
Luis Esteve
681bd60a58 Files to test an experiment performed by Luis Esteve in the framework of the Google Summer of Code (GSoC) 2012, with the collaboration of Javier Arribas and Carles Fernández, related to the extension of GNSS-SDR to Galileo. The objective is perform a positive acquisition of in-orbit Galileo signals in the E1 band. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@222 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-02 11:46:37 +00:00
Javier Arribas
2252797386 Post-processing of Baseband signals captured using IQ Interleaved short integers are now supported using the new data type adapter Ishort_To_Complex 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@221 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-01 14:17:40 +00:00
Javier Arribas
bc87ea4472 Added support for the Realtek RTL2832U OsmoSDR signal source. The Rtlsdr_Signal_Source adapter compilation is optional. See GNSS-SDR README for more information. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@220 64b25241-fba3-4117-9849-534c7e92360d
 2012-08-01 13:11:02 +00:00
Javier Arribas
690d7c66e7 About 40% of tracking speed improvement by extending the early local code replica and using memcpy to generate prompt and late replicas. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@219 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-31 15:10:20 +00:00
Javier Arribas
fb82c2246d Correlator class now takes profit of the GNU Radio memory alignment, used by Volk SIMD functions 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@218 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-31 12:35:07 +00:00
Javier Arribas
b849b20a8c Added optional support for Sparkfun SiGe GN3S USB GPS RF sampler: 
- 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
 2012-07-30 15:46:07 +00:00
Luis Esteve
721004b838 Changing nouns of variables of freq_xlating_fir_filter. Improving configuration files. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@216 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-18 15:47:59 +00:00
Luis Esteve
6f7b4f5aea Added freq_xlating_fir_filter class, this class implements a FIR filter and a composite frequency translation that shifts center_frequency down to zero Hz. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@215 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-18 13:29:18 +00:00
Carles Fernandez
5ff5e8e7bd Better exception handling for File_Signal_Source 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@214 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-15 11:08:10 +00:00
Carles Fernandez
d579d0d8e5 Gives and informative message and exits the program when the source file is not found, instead of abort and core dumping 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@210 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-15 00:47:20 +00:00
Luis Esteve
c9a06f702a Major update: 
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
 2012-07-12 21:17:37 +00:00
David Pubill
aab40c963d Simulink tracking block updated: generation of the Simulink model from a script MATLAB and improvement of the tracking algorithm (both PLL and DLL). Added multi-threading support for MATLAB. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@208 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-03 12:52:12 +00:00
Carles Fernandez
fb287c0de3 remove weird symbol 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@207 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 20:00:16 +00:00
Carles Fernandez
ec6952d356 revert changes 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@206 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 19:58:08 +00:00
Carles Fernandez
0d8b26de30 Revert changes of bits_slices struct since it was not decoding the navigation message properly 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@205 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 19:53:52 +00:00
Carles Fernandez
f6892a8bf3 It seems that definitions such as 
const bits_slice INTEGRITY_STATUS_FLAG = {{23,1}};

used in GPS_L1_CA.h are not allowed in the C++11 standard since they do not correspond to any valid constructor. This is accepted by the current version of gcc (probably due to backward compatibility with C and earlier versions of C++), but it *could* not be accepted in future versions. This can be fixed by putting the struct into a std::vector. I don't know if this is the best way but it seems to work well and does not implies major changes in the code.

There is another issue with the Gnss_Synchro class. Since it had a constructor and a destructor, it could not be considered a POD (Plain Old Data) structure and this has some limitations: while gcc and the C99 standard allowed an array's size to be determined at run time, this extension is not permitted in standard C++. This issue has implications when passing Gnss_Synchro through memory between signal processing blocks. In order to fix this, I have removed the Gnss_Synchro.cc implementation and now this is a header-only class where the array size can be determined at compile time


git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@204 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 12:45:20 +00:00
Carles Fernandez
088cfbb552 small clean-up 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@202 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 12:03:16 +00:00
Carles Fernandez
8214655f54 Removed clang warning about bad-placed parentheses 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@201 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 11:56:56 +00:00
Carles Fernandez
a6c230008f added documentation 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@200 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 11:54:24 +00:00
Carles Fernandez
f8082227f8 fixed: Indentation according to coding style 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@199 64b25241-fba3-4117-9849-534c7e92360d
 2012-07-02 11:52:35 +00:00
Luis Esteve
950765180f Restructuring the src/tests directory. Deleted old tests. Added new test cases. Added signal sample for the tests. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@198 64b25241-fba3-4117-9849-534c7e92360d
 2012-06-22 14:17:28 +00:00
Carles Fernandez
0cc9a67b47 Added documentation 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@197 64b25241-fba3-4117-9849-534c7e92360d
 2012-06-16 22:32:43 +00:00
Javier Arribas
d467874a40 Bug correction in tracking lock detector threshold comparison algorithm. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@196 64b25241-fba3-4117-9849-534c7e92360d
 2012-04-19 18:18:53 +00:00
Javier Arribas
1c0fed749d Removed some debug messages from release compilation to debug compilation (Using DLOG() instead of LOG_AT_LEVEL() ) to speed up a bit the release execution. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@194 64b25241-fba3-4117-9849-534c7e92360d
 2012-04-11 18:44:56 +00:00
Javier Arribas
9d34147e0f Major update to improve the GNSS-SDR pseudorange precision and correct some PVT bugs: 
- Updated all available trackings to generate the tracking_timestamp_secs taking into account the remainder code phase.
- Updated the telemetry decoder to track the number of symbol shifted from the preamble start symbol (to be used in observables).
- Updated observables to align the reference channel symbol with the corresponding symbols in the other channels and compute pseudorranges using the common transmission time algorithm.
- Updated PVT to independize the display output rate from the RINEX and KML log files. New options available in config file!
- Some minor improvements and code cleaning.

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@193 64b25241-fba3-4117-9849-534c7e92360d
 2012-04-11 10:43:35 +00:00
Carles Fernandez
7081c4fe8d code cleaning 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@191 64b25241-fba3-4117-9849-534c7e92360d
 2012-03-24 03:12:44 +00:00
Carles Fernandez
0d6462e52a Unnecessary include removed 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@190 64b25241-fba3-4117-9849-534c7e92360d
 2012-03-24 03:01:55 +00:00
Carles Fernandez
3533a08330 Fixed bug that prevented the code to compile in Mac OS. Documentation added 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@189 64b25241-fba3-4117-9849-534c7e92360d
 2012-03-24 02:53:00 +00:00
Javier Arribas
ddb5b0ebba Small bug in UHD Source corrected 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@187 64b25241-fba3-4117-9849-534c7e92360d
 2012-03-16 14:01:14 +00:00
David Pubill
984b782660 Added a new tracking algorithm that uses TCP sockets to move the work of a processing block to a remote machine executing MATLAB Simulink. 
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@185 64b25241-fba3-4117-9849-534c7e92360d
 2012-03-16 10:55:58 +00:00