Add adapter for Glonass L1 C/A tracking

src/algorithms/tracking/adapters/CMakeLists.txt

@@ -33,6 +33,7 @@ set(TRACKING_ADAPTER_SOURCES
      gps_l1_ca_tcp_connector_tracking.cc
      galileo_e5a_dll_pll_tracking.cc
      gps_l2_m_dll_pll_tracking.cc
+     glonass_l1_ca_dll_pll_tracking.cc
      ${OPT_TRACKING_ADAPTERS}
 )
  

src/algorithms/tracking/adapters/glonass_l1_ca_dll_pll_tracking.cc

@@ -0,0 +1,111 @@
+#include "glonass_l1_ca_dll_pll_tracking.h"
+#include <glog/logging.h>
+#include "Glonass_L1_CA.h"
+#include "configuration_interface.h"
+
+
+using google::LogMessage;
+
+GlonassL1CaDllPllTracking::GlonassL1CaDllPllTracking(
+        ConfigurationInterface* configuration, std::string role,
+        unsigned int in_streams, unsigned int out_streams) :
+                role_(role), in_streams_(in_streams), out_streams_(out_streams)
+{
+    DLOG(INFO) << "role " << role;
+    //################# CONFIGURATION PARAMETERS ########################
+    int fs_in;
+    int vector_length;
+    int f_if;
+    bool dump;
+    std::string dump_filename;
+    std::string item_type;
+    std::string default_item_type = "gr_complex";
+    float pll_bw_hz;
+    float dll_bw_hz;
+    float early_late_space_chips;
+    item_type = configuration->property(role + ".item_type", default_item_type);
+    fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
+    f_if = configuration->property(role + ".if", 0);
+    dump = configuration->property(role + ".dump", false);
+    pll_bw_hz = configuration->property(role + ".pll_bw_hz", 50.0);
+    dll_bw_hz = configuration->property(role + ".dll_bw_hz", 2.0);
+    early_late_space_chips = configuration->property(role + ".early_late_space_chips", 0.5);
+    std::string default_dump_filename = "./track_ch";
+    dump_filename = configuration->property(role + ".dump_filename", default_dump_filename); //unused!
+    vector_length = std::round(fs_in / (GLONASS_L1_CA_CODE_RATE_HZ / GLONASS_L1_CA_CODE_LENGTH_CHIPS));
+
+    //################# MAKE TRACKING GNURadio object ###################
+    if (item_type.compare("gr_complex") == 0)
+        {
+            item_size_ = sizeof(gr_complex);
+            tracking_ = glonass_l1_ca_dll_pll_make_tracking_cc(
+                    f_if,
+                    fs_in,
+                    vector_length,
+                    dump,
+                    dump_filename,
+                    pll_bw_hz,
+                    dll_bw_hz,
+                    early_late_space_chips);
+        }
+    else
+        {
+            item_size_ = sizeof(gr_complex);
+            LOG(WARNING) << item_type << " unknown tracking item type.";
+        }
+    channel_ = 0;
+    DLOG(INFO) << "tracking(" << tracking_->unique_id() << ")";
+}
+
+
+GlonassL1CaDllPllTracking::~GlonassL1CaDllPllTracking()
+{}
+
+
+void GlonassL1CaDllPllTracking::start_tracking()
+{
+    tracking_->start_tracking();
+}
+
+
+/*
+ * Set tracking channel unique ID
+ */
+void GlonassL1CaDllPllTracking::set_channel(unsigned int channel)
+{
+    channel_ = channel;
+    tracking_->set_channel(channel);
+}
+
+
+void GlonassL1CaDllPllTracking::set_gnss_synchro(Gnss_Synchro* p_gnss_synchro)
+{
+    tracking_->set_gnss_synchro(p_gnss_synchro);
+}
+
+
+void GlonassL1CaDllPllTracking::connect(gr::top_block_sptr top_block)
+{
+    if(top_block) { /* top_block is not null */};
+    //nothing to connect, now the tracking uses gr_sync_decimator
+}
+
+
+void GlonassL1CaDllPllTracking::disconnect(gr::top_block_sptr top_block)
+{
+    if(top_block) { /* top_block is not null */};
+    //nothing to disconnect, now the tracking uses gr_sync_decimator
+}
+
+
+gr::basic_block_sptr GlonassL1CaDllPllTracking::get_left_block()
+{
+    return tracking_;
+}
+
+
+gr::basic_block_sptr GlonassL1CaDllPllTracking::get_right_block()
+{
+    return tracking_;
+}
+

src/algorithms/tracking/adapters/glonass_l1_ca_dll_pll_tracking.h

@@ -0,0 +1,67 @@
+#ifndef GNSS_SDR_GLONASS_L1_CA_DLL_PLL_TRACKING_H_
+#define GNSS_SDR_GLONASS_L1_CA_DLL_PLL_TRACKING_H_
+
+#include <string>
+#include "tracking_interface.h"
+#include "glonass_l1_ca_dll_pll_tracking_cc.h"
+
+
+class ConfigurationInterface;
+
+/*!
+ * \brief This class implements a code DLL + carrier PLL tracking loop
+ */
+class GlonassL1CaDllPllTracking : public TrackingInterface
+{
+public:
+    GlonassL1CaDllPllTracking(ConfigurationInterface* configuration,
+            std::string role,
+            unsigned int in_streams,
+            unsigned int out_streams);
+
+    virtual ~GlonassL1CaDllPllTracking();
+
+    std::string role()
+    {
+        return role_;
+    }
+
+    //! Returns "GLONASS_L1_CA_DLL_PLL_Tracking"
+    std::string implementation()
+    {
+        return "GLONASS_L1_CA_DLL_PLL_Tracking";
+    }
+
+    size_t item_size()
+    {
+        return item_size_;
+    }
+
+    void connect(gr::top_block_sptr top_block);
+    void disconnect(gr::top_block_sptr top_block);
+    gr::basic_block_sptr get_left_block();
+    gr::basic_block_sptr get_right_block();
+
+    /*!
+     * \brief Set tracking channel unique ID
+     */
+    void set_channel(unsigned int channel);
+
+    /*!
+     * \brief Set acquisition/tracking common Gnss_Synchro object pointer
+     * to efficiently exchange synchronization data between acquisition and tracking blocks
+     */
+    void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro);
+
+    void start_tracking();
+
+private:
+    glonass_l1_ca_dll_pll_tracking_cc_sptr tracking_;
+    size_t item_size_;
+    unsigned int channel_;
+    std::string role_;
+    unsigned int in_streams_;
+    unsigned int out_streams_;
+};
+
+#endif // GNSS_SDR_GLONASS_L1_CA_DLL_PLL_TRACKING_H_