bds b3i: Adding code to process BeiDou B3I signals

Adds code to perform acq and trk in BeiDou B3I signals. Stages of telemetry decoding, observables computation and pvt use existing code on the platform. Some further testing is required
2026-10-04 06:41:49 +00:00 · 2019-01-25 15:43:00 -06:00
parent 5395b0bc3b
commit e78ba653e6
32 changed files with 2862 additions and 333 deletions
@@ -0,0 +1,112 @@
+/*!
+ * \file beidou_b3i_telemetry_decoder.cc
+ * \brief Implementation of an adapter of a Beidou B1I NAV data decoder block
+ * to a TelemetryDecoderInterface
+ * \author Damian Miralles, 2019. dmiralles2009@gmail.com
+ *
+ * -------------------------------------------------------------------------
+ *
+ * Copyright (C) 2010-2018  (see AUTHORS file for a list of contributors)
+ *
+ * GNSS-SDR is a software defined Global Navigation
+ *          Satellite Systems receiver
+ *
+ * This file is part of GNSS-SDR.
+ *
+ * GNSS-SDR is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GNSS-SDR is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * -------------------------------------------------------------------------
+ */
+
+
+#include "beidou_b3i_telemetry_decoder.h"
+#include "configuration_interface.h"
+#include <gnuradio/io_signature.h>
+#include <glog/logging.h>
+#include "beidou_dnav_almanac.h"
+#include "beidou_dnav_ephemeris.h"
+#include "beidou_dnav_iono.h"
+#include "beidou_dnav_utc_model.h"
+
+
+using google::LogMessage;
+
+BeidouB3iTelemetryDecoder::BeidouB3iTelemetryDecoder(ConfigurationInterface* configuration,
+    std::string role,
+    unsigned int in_streams,
+    unsigned int out_streams) : role_(role),
+                                in_streams_(in_streams),
+                                out_streams_(out_streams)
+{
+    std::string default_dump_filename = "./navigation.dat";
+    DLOG(INFO) << "role " << role;
+    dump_ = configuration->property(role + ".dump", false);
+    dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
+    // make telemetry decoder object
+    telemetry_decoder_ = beidou_b3i_make_telemetry_decoder_cc(satellite_, dump_);  // TODO fix me
+    DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
+    channel_ = 0;
+    if (in_streams_ > 1)
+        {
+            LOG(ERROR) << "This implementation only supports one input stream";
+        }
+    if (out_streams_ > 1)
+        {
+            LOG(ERROR) << "This implementation only supports one output stream";
+        }
+}
+
+
+BeidouB3iTelemetryDecoder::~BeidouB3iTelemetryDecoder()
+{
+}
+
+
+void BeidouB3iTelemetryDecoder::set_satellite(const Gnss_Satellite& satellite)
+{
+    satellite_ = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
+    telemetry_decoder_->set_satellite(satellite_);
+    DLOG(INFO) << "TELEMETRY DECODER: satellite set to " << satellite_;
+}
+
+
+void BeidouB3iTelemetryDecoder::connect(gr::top_block_sptr top_block)
+{
+    if (top_block)
+        { /* top_block is not null */
+        };
+    // Nothing to connect internally
+    DLOG(INFO) << "nothing to connect internally";
+}
+
+
+void BeidouB3iTelemetryDecoder::disconnect(gr::top_block_sptr top_block)
+{
+    if (top_block)
+        { /* top_block is not null */
+        };
+    // Nothing to disconnect
+}
+
+
+gr::basic_block_sptr BeidouB3iTelemetryDecoder::get_left_block()
+{
+    return telemetry_decoder_;
+}
+
+
+gr::basic_block_sptr BeidouB3iTelemetryDecoder::get_right_block()
+{
+    return telemetry_decoder_;
+}