mirror of https://github.com/gnss-sdr/gnss-sdr
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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