mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-06-25 14:33:14 +00:00
b0d33328d5
decoding: Changes in the flowgraph and in the configuration files to mix channels from different GNSS systems in the same receiver. Hybrid observables and PVT under construction. The changes in the configuration file parameter names are NOT backward compatible. The receiver can still work as usual in single GNSS system mode but some modification on configuration files are required. Use the example provided of Hybrid configuration file.
122 lines
4.2 KiB
C++
122 lines
4.2 KiB
C++
/*!
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* \file gps_l1_ca_telemetry_decoder.cc
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* \brief Implementation of an adapter of a GPS L1 C/A NAV data decoder block
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* to a TelemetryDecoderInterface
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* \author Javier Arribas, 2011. jarribas(at)cttc.es
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include "gps_l1_ca_telemetry_decoder.h"
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#include <gnuradio/io_signature.h>
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#include <glog/logging.h>
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#include "gps_ephemeris.h"
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#include "gps_almanac.h"
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#include "gps_iono.h"
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#include "gps_utc_model.h"
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#include "configuration_interface.h"
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#include "gps_l1_ca_telemetry_decoder_cc.h"
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extern concurrent_queue<Gps_Ephemeris> global_gps_ephemeris_queue;
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extern concurrent_queue<Gps_Iono> global_gps_iono_queue;
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extern concurrent_queue<Gps_Utc_Model> global_gps_utc_model_queue;
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extern concurrent_queue<Gps_Almanac> global_gps_almanac_queue;
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using google::LogMessage;
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GpsL1CaTelemetryDecoder::GpsL1CaTelemetryDecoder(ConfigurationInterface* configuration,
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std::string role,
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unsigned int in_streams,
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unsigned int out_streams,
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boost::shared_ptr<gr::msg_queue> queue) :
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role_(role),
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in_streams_(in_streams),
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out_streams_(out_streams),
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queue_(queue)
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{
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std::string default_item_type = "gr_complex";
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std::string default_dump_filename = "./navigation.dat";
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DLOG(INFO) << "role " << role;
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DLOG(INFO) << "vector length " << vector_length_;
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vector_length_ = configuration->property(role + ".vector_length", 2048);
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dump_ = configuration->property(role + ".dump", false);
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dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
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int fs_in;
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fs_in = configuration->property("GNSS-SDR.internal_fs_hz", 2048000);
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// make telemetry decoder object
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telemetry_decoder_ = gps_l1_ca_make_telemetry_decoder_cc(satellite_, 0, (long)fs_in, vector_length_, queue_, dump_); // TODO fix me
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DLOG(INFO) << "telemetry_decoder(" << telemetry_decoder_->unique_id() << ")";
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// set the navigation msg queue;
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telemetry_decoder_->set_ephemeris_queue(&global_gps_ephemeris_queue);
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telemetry_decoder_->set_iono_queue(&global_gps_iono_queue);
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telemetry_decoder_->set_almanac_queue(&global_gps_almanac_queue);
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telemetry_decoder_->set_utc_model_queue(&global_gps_utc_model_queue);
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//decimation factor
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int decimation_factor=configuration->property(role + ".decimation_factor", 1);
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telemetry_decoder_->set_decimation(decimation_factor);
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DLOG(INFO) << "global navigation message queue assigned to telemetry_decoder ("<< telemetry_decoder_->unique_id() << ")";
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}
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GpsL1CaTelemetryDecoder::~GpsL1CaTelemetryDecoder()
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{}
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void GpsL1CaTelemetryDecoder::set_satellite(Gnss_Satellite satellite)
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{
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satellite_ = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
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telemetry_decoder_->set_satellite(satellite_);
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DLOG(INFO) << "TELEMETRY DECODER: satellite set to " << satellite_;
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}
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void GpsL1CaTelemetryDecoder::connect(gr::top_block_sptr top_block)
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{
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// Nothing to connect internally
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DLOG(INFO) << "nothing to connect internally";
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}
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void GpsL1CaTelemetryDecoder::disconnect(gr::top_block_sptr top_block)
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{
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// Nothing to disconnect
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}
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gr::basic_block_sptr GpsL1CaTelemetryDecoder::get_left_block()
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{
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return telemetry_decoder_;
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}
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gr::basic_block_sptr GpsL1CaTelemetryDecoder::get_right_block()
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{
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return telemetry_decoder_;
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}
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