mirror of https://github.com/gnss-sdr/gnss-sdr
308 lines
7.9 KiB
C++
308 lines
7.9 KiB
C++
/*!
|
|
* \file gps_l1_ca_gps_sdr_acquisition.cc
|
|
* \brief Brief description of the file here
|
|
* \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
|
|
* Luis Esteve, 2011. luis(at)epsilon-formacion.com
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*
|
|
* Copyright (C) 2010-2011 (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 <http://www.gnu.org/licenses/>.
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "gps_l1_ca_gps_sdr_acquisition.h"
|
|
|
|
#include "configuration_interface.h"
|
|
|
|
#include <gnuradio/gr_io_signature.h>
|
|
#include <gnuradio/gr_stream_to_vector.h>
|
|
#include <gnuradio/gr_vector_to_stream.h>
|
|
#include <gnuradio/gr_complex_to_interleaved_short.h>
|
|
#include <gnuradio/gr_interleaved_short_to_complex.h>
|
|
|
|
#include <glog/log_severity.h>
|
|
#include <glog/logging.h>
|
|
|
|
using google::LogMessage;
|
|
|
|
//! Constructor
|
|
GpsL1CaGpsSdrAcquisition::GpsL1CaGpsSdrAcquisition(
|
|
ConfigurationInterface* configuration, std::string role,
|
|
unsigned int in_streams, unsigned int out_streams,
|
|
gr_msg_queue_sptr queue) :
|
|
role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(
|
|
queue)
|
|
{
|
|
|
|
std::string default_item_type = "gr_complex";
|
|
std::string default_dump_filename = "./data/acquisition_";
|
|
|
|
DLOG(INFO) << "role " << role;
|
|
|
|
item_type_ = configuration->property(role + ".item_type",
|
|
default_item_type);
|
|
//vector_length_ = configuration->property(role + ".vector_length", 2048);
|
|
|
|
satellite_ = 0;
|
|
fs_in_ = configuration->property(role + ".fs_in", 2048000);
|
|
if_ = configuration->property(role + ".ifreq", 0);
|
|
dump_ = configuration->property(role + ".dump", false);
|
|
doppler_max_ = 0;
|
|
acquisition_ms_ = configuration->property(role + ".sampled_ms", 1);
|
|
dump_filename_ = configuration->property(role + ".dump_filename",
|
|
default_dump_filename);
|
|
|
|
//vector_length_=ceil((float)fs_in_*((float)acquisition_ms_/1000));
|
|
|
|
//--- Find number of samples per spreading code ----------------------------
|
|
const int32 _codeFreqBasis = 1023000; //Hz
|
|
const int32 _codeLength = 1023;
|
|
vector_length_ = round(fs_in_ / (_codeFreqBasis / _codeLength));
|
|
|
|
printf("vector_length_ %i\n\r", vector_length_);
|
|
|
|
if (item_type_.compare("short") == 0)
|
|
{
|
|
item_size_ = sizeof(short);
|
|
acquisition_ss_ = gps_l1_ca_gps_sdr_make_acquisition_ss(
|
|
acquisition_ms_, if_, fs_in_, vector_length_, queue_, dump_,
|
|
dump_filename_);
|
|
stream_to_vector_ = gr_make_stream_to_vector(item_size_, 2
|
|
* vector_length_);
|
|
|
|
}
|
|
else if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
item_size_ = sizeof(gr_complex);
|
|
acquisition_cc_ = gps_l1_ca_gps_sdr_make_acquisition_cc(
|
|
acquisition_ms_, if_, fs_in_, vector_length_, queue_, dump_,
|
|
dump_filename_);
|
|
stream_to_vector_ = gr_make_stream_to_vector(item_size_,
|
|
vector_length_);
|
|
|
|
}
|
|
else
|
|
{
|
|
LOG_AT_LEVEL(WARNING) << item_type_ << " unknown item type.";
|
|
}
|
|
|
|
DLOG(INFO) << "stream_to_vector(" << stream_to_vector_->unique_id()
|
|
<< ")";
|
|
|
|
}
|
|
|
|
//! Destructor
|
|
GpsL1CaGpsSdrAcquisition::~GpsL1CaGpsSdrAcquisition()
|
|
{}
|
|
|
|
//! Set satellite
|
|
void GpsL1CaGpsSdrAcquisition::set_satellite(unsigned int satellite)
|
|
{
|
|
satellite_ = satellite;
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
acquisition_cc_->set_satellite(satellite_);
|
|
}
|
|
else
|
|
{
|
|
acquisition_ss_->set_satellite(satellite_);
|
|
}
|
|
}
|
|
|
|
|
|
//! Set channel
|
|
void GpsL1CaGpsSdrAcquisition::set_channel(unsigned int channel)
|
|
{
|
|
channel_ = channel;
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
acquisition_cc_->set_channel(channel_);
|
|
}
|
|
else
|
|
{
|
|
acquisition_ss_->set_channel(channel_);
|
|
}
|
|
}
|
|
|
|
//! Set acquisition threshold
|
|
void GpsL1CaGpsSdrAcquisition::set_threshold(float threshold)
|
|
{
|
|
threshold_ = threshold;
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
acquisition_cc_->set_threshold(threshold_);
|
|
}
|
|
else
|
|
{
|
|
acquisition_ss_->set_threshold(threshold_);
|
|
}
|
|
}
|
|
|
|
//! Set maximum Doppler shift
|
|
void GpsL1CaGpsSdrAcquisition::set_doppler_max(unsigned int doppler_max)
|
|
{
|
|
doppler_max_ = doppler_max;
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
acquisition_cc_->set_doppler_max(doppler_max_);
|
|
}
|
|
else
|
|
{
|
|
acquisition_ss_->set_doppler_max(doppler_max_);
|
|
}
|
|
}
|
|
|
|
//! Set Channel Queue
|
|
void GpsL1CaGpsSdrAcquisition::set_channel_queue(
|
|
concurrent_queue<int> *channel_internal_queue)
|
|
{
|
|
channel_internal_queue_ = channel_internal_queue;
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
acquisition_cc_->set_channel_queue(channel_internal_queue_);
|
|
}
|
|
else
|
|
{
|
|
acquisition_ss_->set_channel_queue(channel_internal_queue_);
|
|
}
|
|
}
|
|
|
|
signed int GpsL1CaGpsSdrAcquisition::prn_code_phase()
|
|
{
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
return acquisition_cc_->prn_code_phase();
|
|
}
|
|
else
|
|
{
|
|
return acquisition_ss_->prn_code_phase();
|
|
}
|
|
}
|
|
|
|
float GpsL1CaGpsSdrAcquisition::doppler_freq_shift()
|
|
{
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
return acquisition_cc_->doppler_freq_phase();
|
|
}
|
|
else
|
|
{
|
|
return acquisition_ss_->doppler_freq_phase();
|
|
}
|
|
}
|
|
|
|
signed int GpsL1CaGpsSdrAcquisition::mag()
|
|
{
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
return acquisition_cc_->mag();
|
|
}
|
|
else
|
|
{
|
|
return acquisition_ss_->mag();
|
|
}
|
|
}
|
|
|
|
void GpsL1CaGpsSdrAcquisition::reset()
|
|
{
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
acquisition_cc_->set_active(true);
|
|
}
|
|
else
|
|
{
|
|
acquisition_ss_->set_active(true);
|
|
}
|
|
}
|
|
|
|
unsigned long int GpsL1CaGpsSdrAcquisition::get_sample_stamp()
|
|
{
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
return acquisition_cc_->get_sample_stamp();
|
|
}
|
|
else
|
|
{
|
|
return acquisition_ss_->get_sample_stamp();
|
|
}
|
|
}
|
|
|
|
void GpsL1CaGpsSdrAcquisition::connect(gr_top_block_sptr top_block)
|
|
{
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
//top_block->connect(stream_to_vector_, 0, vector_to_stream_,0);
|
|
|
|
top_block->connect(stream_to_vector_, 0, acquisition_cc_, 0);
|
|
//top_block->connect(acquisition_cc_, 0, vector_to_stream_, 0);
|
|
}
|
|
else
|
|
{
|
|
top_block->connect(stream_to_vector_, 0, acquisition_ss_, 0);
|
|
//top_block->connect(acquisition_ss_, 0, vector_to_stream_, 0);
|
|
}
|
|
|
|
}
|
|
|
|
void GpsL1CaGpsSdrAcquisition::disconnect(gr_top_block_sptr top_block)
|
|
{
|
|
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
top_block->disconnect(stream_to_vector_, 0, acquisition_cc_, 0);
|
|
//top_block->disconnect(acquisition_cc_, 0, vector_to_stream_, 0);
|
|
}
|
|
else
|
|
{
|
|
top_block->disconnect(stream_to_vector_, 0, acquisition_ss_, 0);
|
|
//top_block->disconnect(acquisition_ss_, 0, vector_to_stream_, 0);
|
|
}
|
|
}
|
|
|
|
gr_basic_block_sptr GpsL1CaGpsSdrAcquisition::get_left_block()
|
|
{
|
|
return stream_to_vector_;
|
|
}
|
|
|
|
gr_basic_block_sptr GpsL1CaGpsSdrAcquisition::get_right_block()
|
|
{
|
|
if (item_type_.compare("gr_complex") == 0)
|
|
{
|
|
return acquisition_cc_;
|
|
}
|
|
else
|
|
{
|
|
return acquisition_ss_;
|
|
}
|
|
|
|
}
|
|
|