- The GNSS-SDR code-based Observable generation algorithm for GPS L1 C/A was migrated from common TX time to common RX time. One of the main reasons is that the common TX algorithm was incompatible with the standard RINEX observables, wich requires the oservables at the same time of reception.
- Using common Rx time, the code was simplified and now requires less memory due to the lack of symbol buffer
- Now it is possible to use standard RINEX post processing software (gpstk and rtklib for instance) to get PVT and the obtained precision is comparable to the internal Least Squares solver. It is possible to use also the carrier phase observable, but is still experimental.
- The default RINEX version output was set to 2.11 in this revision. RINEX 3.00 is under verification now.
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@364 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
PSEUDORANGE
CARRIER PHASE
CARRIER DOPPLER
SIGNAL STRENGTH (dB-Hz)
thus, it enables the realtime kinematics and PPP positioning for first time in an open source GNSS SDR. Enjoy!
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@359 64b25241-fba3-4117-9849-534c7e92360d
- New SUPL parameters available in GNSS-SDR.conf
- Ephemeris assistance for real-time operation is now functional
- SUPL client now stores the received ephemeris in XML file. This file can be loaded on request to enable post-processing SUPL assistance and to enable SUPL assistance without internet connection. -> thowards a complete warm start GNSS-SDR.
BUG FIXES:
- GN3S driver firmware file copy operation in CmakeLists.txt had an error that mismatches the gn3s_firmware.ihx file location and prevents the correct firmware loading for GN3S SiGe USB dongles.
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@351 64b25241-fba3-4117-9849-534c7e92360d
- Gps telemetry decoder and PVT now uses independent queues for ephemeris, iono, utc_model and almanac. The old gps_navigation_queue is now deprecated and it is removed from the implementation. This affect almost all the PVT and Rinex printer classes.
- Rinex printer class updated to use the new ephemeris, iono, utc_model objects
Bug fixes and correction:
- The pseudorange generation now is based on the computed TOW for each received symbol. The History_Shift computation become simplier in this way. This modification is also a solution for a bug where the pseudoranges became temporally invalid when the TOW is updated (that happen every 6 secons!)
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@343 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
