added 180 deg. inverted carrier phase PLL lock flag in gnss_synchro

docs/protobuf/gnss_synchro.proto

@@ -36,6 +36,7 @@ message GnssSynchro {
    double rx_time = 23;  // Receiving time after the start of the week, in s
    bool flag_valid_pseudorange = 24;  // Pseudorange computation status
    double interp_tow_ms = 25;  // Interpolated time of week, in ms
+   bool flag_PLL_180_deg_phase_locked = 26; // PLL lock at 180º
 }
 
 /* Observables represents a collection of GnssSynchro annotations */

src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_telemetry_decoder_gs.cc

@@ -1040,6 +1040,11 @@ int galileo_telemetry_decoder_gs::general_work(int noutput_items __attribute__((
                 {
                     // correct the accumulated phase for the Costas loop phase shift, if required
                     current_symbol.Carrier_phase_rads += GNSS_PI;
+                    current_symbol.Flag_PLL_180_deg_phase_locked = true;
+                }
+            else
+                {
+                    current_symbol.Flag_PLL_180_deg_phase_locked = false;
                 }
 
             if (d_dump == true)

src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l1_ca_telemetry_decoder_gs.cc

@@ -564,6 +564,11 @@ int gps_l1_ca_telemetry_decoder_gs::general_work(int noutput_items __attribute__
                 {
                     // correct the accumulated phase for the Costas loop phase shift, if required
                     current_symbol.Carrier_phase_rads += GNSS_PI;
+                    current_symbol.Flag_PLL_180_deg_phase_locked = true;
+                }
+            else
+                {
+                    current_symbol.Flag_PLL_180_deg_phase_locked = false;
                 }
 
             if (d_dump == true)

src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l2c_telemetry_decoder_gs.cc

@@ -311,6 +311,11 @@ int gps_l2c_telemetry_decoder_gs::general_work(int noutput_items __attribute__((
         {
             // correct the accumulated phase for the Costas loop phase shift, if required
             current_synchro_data.Carrier_phase_rads += GNSS_PI;
+            current_synchro_data.Flag_PLL_180_deg_phase_locked = true;
+        }
+    else
+        {
+            current_synchro_data.Flag_PLL_180_deg_phase_locked = false;
         }
 
     current_synchro_data.TOW_at_current_symbol_ms = round(d_TOW_at_current_symbol * 1000.0);

src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l5_telemetry_decoder_gs.cc

@@ -325,6 +325,11 @@ int gps_l5_telemetry_decoder_gs::general_work(int noutput_items __attribute__((u
                 {
                     // correct the accumulated phase for the Costas loop phase shift, if required
                     current_synchro_data.Carrier_phase_rads += GNSS_PI;
+                    current_synchro_data.Flag_PLL_180_deg_phase_locked = true;
+                }
+            else
+                {
+                    current_synchro_data.Flag_PLL_180_deg_phase_locked = false;
                 }
             current_synchro_data.TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
             current_synchro_data.Flag_valid_word = d_flag_valid_word;

src/core/monitor/serdes_gnss_synchro.h

@@ -112,6 +112,7 @@ public:
                 obs->set_pseudorange_m(gs.Pseudorange_m);
                 obs->set_rx_time(gs.RX_time);
                 obs->set_flag_valid_pseudorange(gs.Flag_valid_pseudorange);
+                obs->set_flag_pll_180_deg_phase_locked(gs.Flag_PLL_180_deg_phase_locked);
                 obs->set_interp_tow_ms(gs.interp_TOW_ms);
             }
         observables.SerializeToString(&data);
@@ -156,6 +157,7 @@ public:
                 gs.Pseudorange_m = gs_read.pseudorange_m();
                 gs.RX_time = gs_read.rx_time();
                 gs.Flag_valid_pseudorange = gs_read.flag_valid_pseudorange();
+                gs.Flag_PLL_180_deg_phase_locked = gs_read.flag_pll_180_deg_phase_locked();
                 gs.interp_TOW_ms = gs_read.interp_tow_ms();
 
                 vgs.push_back(gs);

src/core/system_parameters/gnss_synchro.h

@@ -74,10 +74,11 @@ public:
     double interp_TOW_ms{};  //!< Set by Observables processing block
 
     // Flags
-    bool Flag_valid_acquisition{};    //!< Set by Acquisition processing block
+    bool Flag_valid_acquisition{};         //!< Set by Acquisition processing block
-    bool Flag_valid_symbol_output{};  //!< Set by Tracking processing block
+    bool Flag_valid_symbol_output{};       //!< Set by Tracking processing block
-    bool Flag_valid_word{};           //!< Set by Telemetry Decoder processing block
+    bool Flag_valid_word{};                //!< Set by Telemetry Decoder processing block
-    bool Flag_valid_pseudorange{};    //!< Set by Observables processing block
+    bool Flag_valid_pseudorange{};         //!< Set by Observables processing block
+    bool Flag_PLL_180_deg_phase_locked{};  //!< Set by Telemetry Decoder processing block
 
     /// Copy constructor
     Gnss_Synchro(const Gnss_Synchro& other) noexcept
@@ -118,6 +119,7 @@ public:
                 this->Flag_valid_symbol_output = rhs.Flag_valid_symbol_output;
                 this->Flag_valid_word = rhs.Flag_valid_word;
                 this->Flag_valid_pseudorange = rhs.Flag_valid_pseudorange;
+                this->Flag_PLL_180_deg_phase_locked = rhs.Flag_PLL_180_deg_phase_locked;
             }
         return *this;
     };
@@ -160,6 +162,7 @@ public:
                 this->Flag_valid_symbol_output = other.Flag_valid_symbol_output;
                 this->Flag_valid_word = other.Flag_valid_word;
                 this->Flag_valid_pseudorange = other.Flag_valid_pseudorange;
+                this->Flag_PLL_180_deg_phase_locked = other.Flag_PLL_180_deg_phase_locked;
             }
         return *this;
     };
@@ -206,6 +209,7 @@ public:
         ar& BOOST_SERIALIZATION_NVP(Flag_valid_symbol_output);
         ar& BOOST_SERIALIZATION_NVP(Flag_valid_word);
         ar& BOOST_SERIALIZATION_NVP(Flag_valid_pseudorange);
+        ar& BOOST_SERIALIZATION_NVP(Flag_PLL_180_deg_phase_locked);
     }
 };