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https://github.com/gnss-sdr/gnss-sdr
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Retrieve reduced CED only once, don't do it if we already have the full ephemeris set
Update changelog
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@ -22,15 +22,18 @@ All notable changes to GNSS-SDR will be documented in this file.
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### Improvements in Interoperability:
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- Fix setting of the signal source gain if the AGC is enabled when using the
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- Fixed setting of the signal source gain if the AGC is enabled when using the
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AD9361 front-end.
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- Fixed the regeneration of Galileo ephemeris from the reduced clock and
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ephemeris data (CED) defined in the Galileo E1B INAV message introduced in
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Galileo OS SIS ICD Issue 2.0.
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### Improvements in Maintainability:
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- Rewritten Viterbi decoder for Galileo navigation messages: encapsulated in a
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class instead of being implemented as free inline functions. This improves
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memory management.
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- Update GSL implementation to v0.39.0. See
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- Updated GSL implementation to v0.39.0. See
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https://github.com/gsl-lite/gsl-lite/releases/tag/v0.39.0
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### Improvements in Reliability
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@ -85,6 +85,7 @@ galileo_telemetry_decoder_gs::galileo_telemetry_decoder_gs(
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d_remove_dat = conf.remove_dat;
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d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
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d_frame_type = frame_type;
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d_enable_reed_solomon_inav = false;
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// Viterbi decoder vars
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const int32_t nn = 2; // Coding rate 1/n
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@ -123,6 +124,7 @@ galileo_telemetry_decoder_gs::galileo_telemetry_decoder_gs(
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d_max_symbols_without_valid_frame = GALILEO_INAV_PAGE_SYMBOLS * 30; // rise alarm 60 seconds without valid tlm
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if (conf.enable_reed_solomon == true)
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{
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d_enable_reed_solomon_inav = true;
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d_inav_nav.enable_reed_solomon();
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}
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break;
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@ -609,6 +611,10 @@ void galileo_telemetry_decoder_gs::reset()
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d_sent_tlm_failed_msg = false;
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d_stat = 0;
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d_viterbi->reset();
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if (d_enable_reed_solomon_inav == true)
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{
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d_inav_nav.enable_reed_solomon();
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}
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DLOG(INFO) << "Telemetry decoder reset for satellite " << d_satellite;
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}
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@ -143,6 +143,7 @@ private:
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bool d_print_cnav_page;
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bool d_enable_navdata_monitor;
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bool d_dump_crc_stats;
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bool d_enable_reed_solomon_inav;
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};
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@ -248,6 +248,7 @@ bool Galileo_Inav_Message::have_new_ephemeris() // Check if we have a new ephem
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flag_ephemeris_4 = false; // clear the flag
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flag_all_ephemeris = true;
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IOD_ephemeris = IOD_nav_1;
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enable_rs = false; // Do not retrieve reduced CED if we already have the full ephemeris set
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DLOG(INFO) << "Batch number: " << IOD_ephemeris;
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return true;
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}
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@ -357,6 +358,7 @@ bool Galileo_Inav_Message::have_new_ephemeris() // Check if we have a new ephem
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flag_ephemeris_4 = false; // clear the flag
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flag_all_ephemeris = true;
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IOD_ephemeris = IOD_nav_1;
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enable_rs = false; // Retrieve reduced CED only once
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DLOG(INFO) << "Batch number: " << IOD_ephemeris;
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return true;
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}
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