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GNSS-SDR Major changes:

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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
This commit is contained in:
Javier Arribas
2011-11-22 17:21:54 +00:00
parent 004cd776d9
commit 34d1c5110b
31 changed files with 2192 additions and 474 deletions
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2
src/algorithms/telemetry_decoder/libs/gps_l1_ca_subframe_fsm.cc
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@@ -147,7 +147,7 @@ void GpsL1CaSubframeFsm::gps_subframe_to_nav_msg()
subframe_ID=d_nav.subframe_decoder(this->d_subframe); //decode the subframe
d_nav.d_satellite_PRN=d_satellite_PRN+1;
d_nav.d_satellite_PRN=d_satellite_PRN;
d_nav.d_channel_ID=d_channel_ID;
if (subframe_ID==1) {
d_nav.d_subframe1_timestamp_ms=this->d_preamble_time_ms-6002;