2011-10-01 18:45:20 +00:00
|
|
|
/*!
|
|
|
|
* \file gps_l1_ca_pcps_acquisition.cc
|
2012-07-12 21:17:37 +00:00
|
|
|
* \brief Adapts a PCPS acquisition block to an AcquisitionInterface for
|
2013-08-28 17:17:57 +00:00
|
|
|
* GPS L1 C/A signals
|
2012-09-12 15:03:38 +00:00
|
|
|
* \authors <ul>
|
|
|
|
* <li> Javier Arribas, 2011. jarribas(at)cttc.es
|
|
|
|
* <li> Luis Esteve, 2012. luis(at)epsilon-formacion.com
|
2013-08-28 17:17:57 +00:00
|
|
|
* <li> Marc Molina, 2013. marc.molina.pena(at)gmail.com
|
2012-09-12 15:03:38 +00:00
|
|
|
* </ul>
|
2011-10-01 18:45:20 +00:00
|
|
|
*
|
|
|
|
* -------------------------------------------------------------------------
|
|
|
|
*
|
2018-05-13 20:49:11 +00:00
|
|
|
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
|
2011-10-01 18:45:20 +00:00
|
|
|
*
|
|
|
|
* 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
|
2015-01-08 18:49:59 +00:00
|
|
|
* (at your option) any later version.
|
2011-10-01 18:45:20 +00:00
|
|
|
*
|
|
|
|
* 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
|
2018-05-13 20:49:11 +00:00
|
|
|
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
|
2011-10-01 18:45:20 +00:00
|
|
|
*
|
|
|
|
* -------------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "gps_l1_ca_pcps_acquisition.h"
|
2014-01-14 23:22:54 +00:00
|
|
|
#include "GPS_L1_CA.h"
|
2018-06-19 10:59:54 +00:00
|
|
|
#include "acq_conf.h"
|
2018-12-09 21:00:09 +00:00
|
|
|
#include "configuration_interface.h"
|
|
|
|
#include "gnss_sdr_flags.h"
|
|
|
|
#include "gps_sdr_signal_processing.h"
|
2018-02-26 02:15:53 +00:00
|
|
|
#include <boost/math/distributions/exponential.hpp>
|
|
|
|
#include <glog/logging.h>
|
|
|
|
|
2014-01-14 23:22:54 +00:00
|
|
|
|
2011-10-01 18:45:20 +00:00
|
|
|
GpsL1CaPcpsAcquisition::GpsL1CaPcpsAcquisition(
|
2018-12-02 04:29:11 +00:00
|
|
|
ConfigurationInterface* configuration,
|
2019-02-12 11:07:40 +00:00
|
|
|
const std::string& role,
|
2018-12-02 04:29:11 +00:00
|
|
|
unsigned int in_streams,
|
2019-02-12 11:07:40 +00:00
|
|
|
unsigned int out_streams) : role_(role),
|
2018-12-02 04:29:11 +00:00
|
|
|
in_streams_(in_streams),
|
|
|
|
out_streams_(out_streams)
|
2011-10-01 18:45:20 +00:00
|
|
|
{
|
2013-07-04 13:47:40 +00:00
|
|
|
configuration_ = configuration;
|
2011-10-01 18:45:20 +00:00
|
|
|
std::string default_item_type = "gr_complex";
|
2018-10-30 20:09:34 +00:00
|
|
|
std::string default_dump_filename = "./acquisition.mat";
|
2011-10-01 18:45:20 +00:00
|
|
|
|
|
|
|
DLOG(INFO) << "role " << role;
|
|
|
|
|
2015-05-07 17:54:41 +00:00
|
|
|
item_type_ = configuration_->property(role + ".item_type", default_item_type);
|
2018-12-02 04:29:11 +00:00
|
|
|
int64_t fs_in_deprecated = configuration_->property("GNSS-SDR.internal_fs_hz", 2048000);
|
2017-09-02 09:24:44 +00:00
|
|
|
fs_in_ = configuration_->property("GNSS-SDR.internal_fs_sps", fs_in_deprecated);
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.fs_in = fs_in_;
|
2013-05-16 16:25:51 +00:00
|
|
|
dump_ = configuration_->property(role + ".dump", false);
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.dump = dump_;
|
|
|
|
acq_parameters_.dump_channel = configuration_->property(role + ".dump_channel", 0);
|
2017-08-24 11:32:37 +00:00
|
|
|
blocking_ = configuration_->property(role + ".blocking", true);
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.blocking = blocking_;
|
2016-05-06 17:04:55 +00:00
|
|
|
doppler_max_ = configuration_->property(role + ".doppler_max", 5000);
|
2019-02-11 20:13:02 +00:00
|
|
|
if (FLAGS_doppler_max != 0)
|
|
|
|
{
|
|
|
|
doppler_max_ = FLAGS_doppler_max;
|
|
|
|
}
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.doppler_max = doppler_max_;
|
2013-08-28 17:17:57 +00:00
|
|
|
sampled_ms_ = configuration_->property(role + ".coherent_integration_time_ms", 1);
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.sampled_ms = sampled_ms_;
|
|
|
|
acq_parameters_.ms_per_code = 1;
|
2013-08-28 17:17:57 +00:00
|
|
|
bit_transition_flag_ = configuration_->property(role + ".bit_transition_flag", false);
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.bit_transition_flag = bit_transition_flag_;
|
2018-03-03 01:03:39 +00:00
|
|
|
use_CFAR_algorithm_flag_ = configuration_->property(role + ".use_CFAR_algorithm", true); //will be false in future versions
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.use_CFAR_algorithm_flag = use_CFAR_algorithm_flag_;
|
2016-05-10 23:39:11 +00:00
|
|
|
max_dwells_ = configuration_->property(role + ".max_dwells", 1);
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.max_dwells = max_dwells_;
|
2015-05-07 17:54:41 +00:00
|
|
|
dump_filename_ = configuration_->property(role + ".dump_filename", default_dump_filename);
|
2018-12-03 16:58:18 +00:00
|
|
|
acq_parameters_.dump_filename = dump_filename_;
|
|
|
|
acq_parameters_.num_doppler_bins_step2 = configuration_->property(role + ".second_nbins", 4);
|
|
|
|
acq_parameters_.doppler_step2 = configuration_->property(role + ".second_doppler_step", 125.0);
|
|
|
|
acq_parameters_.make_2_steps = configuration_->property(role + ".make_two_steps", false);
|
|
|
|
acq_parameters_.use_automatic_resampler = configuration_->property("GNSS-SDR.use_acquisition_resampler", false);
|
2018-12-10 17:39:14 +00:00
|
|
|
if (acq_parameters_.use_automatic_resampler == true and item_type_ != "gr_complex")
|
2018-12-03 16:58:18 +00:00
|
|
|
{
|
|
|
|
LOG(WARNING) << "GPS L1 CA acquisition disabled the automatic resampler feature because its item_type is not set to gr_complex";
|
|
|
|
acq_parameters_.use_automatic_resampler = false;
|
|
|
|
}
|
|
|
|
if (acq_parameters_.use_automatic_resampler)
|
|
|
|
{
|
|
|
|
if (acq_parameters_.fs_in > GPS_L1_CA_OPT_ACQ_FS_HZ)
|
|
|
|
{
|
|
|
|
acq_parameters_.resampler_ratio = floor(static_cast<float>(acq_parameters_.fs_in) / GPS_L1_CA_OPT_ACQ_FS_HZ);
|
|
|
|
uint32_t decimation = acq_parameters_.fs_in / GPS_L1_CA_OPT_ACQ_FS_HZ;
|
|
|
|
while (acq_parameters_.fs_in % decimation > 0)
|
|
|
|
{
|
|
|
|
decimation--;
|
|
|
|
};
|
|
|
|
acq_parameters_.resampler_ratio = decimation;
|
|
|
|
acq_parameters_.resampled_fs = acq_parameters_.fs_in / static_cast<int>(acq_parameters_.resampler_ratio);
|
|
|
|
}
|
|
|
|
//--- Find number of samples per spreading code -------------------------
|
|
|
|
code_length_ = static_cast<unsigned int>(std::floor(static_cast<double>(acq_parameters_.resampled_fs) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
|
|
|
|
acq_parameters_.samples_per_ms = static_cast<float>(acq_parameters_.resampled_fs) * 0.001;
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.samples_per_chip = static_cast<unsigned int>(ceil(GPS_L1_CA_CHIP_PERIOD * static_cast<float>(acq_parameters_.resampled_fs)));
|
2018-12-03 16:58:18 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
acq_parameters_.resampled_fs = fs_in_;
|
|
|
|
//--- Find number of samples per spreading code -------------------------
|
|
|
|
code_length_ = static_cast<unsigned int>(std::floor(static_cast<double>(fs_in_) / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS)));
|
|
|
|
acq_parameters_.samples_per_ms = static_cast<float>(fs_in_) * 0.001;
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.samples_per_chip = static_cast<unsigned int>(ceil(GPS_L1_CA_CHIP_PERIOD * static_cast<float>(acq_parameters_.fs_in)));
|
2018-12-03 16:58:18 +00:00
|
|
|
}
|
2018-12-05 15:50:32 +00:00
|
|
|
|
|
|
|
acq_parameters_.samples_per_code = acq_parameters_.samples_per_ms * static_cast<float>(GPS_L1_CA_CODE_PERIOD * 1000.0);
|
|
|
|
vector_length_ = std::floor(acq_parameters_.sampled_ms * acq_parameters_.samples_per_ms) * (acq_parameters_.bit_transition_flag ? 2 : 1);
|
2016-01-05 09:59:37 +00:00
|
|
|
code_ = new gr_complex[vector_length_];
|
2012-07-12 21:17:37 +00:00
|
|
|
|
2018-12-02 04:29:11 +00:00
|
|
|
if (item_type_ == "cshort")
|
2016-01-20 21:59:22 +00:00
|
|
|
{
|
|
|
|
item_size_ = sizeof(lv_16sc_t);
|
2017-08-18 10:45:47 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
item_size_ = sizeof(gr_complex);
|
2018-02-06 15:55:09 +00:00
|
|
|
}
|
2018-07-19 14:26:51 +00:00
|
|
|
|
2018-12-05 15:50:32 +00:00
|
|
|
acq_parameters_.it_size = item_size_;
|
|
|
|
acq_parameters_.blocking_on_standby = configuration_->property(role + ".blocking_on_standby", false);
|
|
|
|
acquisition_ = pcps_make_acquisition(acq_parameters_);
|
2018-02-07 07:43:44 +00:00
|
|
|
DLOG(INFO) << "acquisition(" << acquisition_->unique_id() << ")";
|
2012-11-25 11:15:11 +00:00
|
|
|
|
2018-12-02 04:29:11 +00:00
|
|
|
if (item_type_ == "cbyte")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
|
|
|
cbyte_to_float_x2_ = make_complex_byte_to_float_x2();
|
|
|
|
float_to_complex_ = gr::blocks::float_to_complex::make();
|
|
|
|
}
|
2016-05-06 17:04:55 +00:00
|
|
|
|
2015-05-15 01:02:45 +00:00
|
|
|
channel_ = 0;
|
|
|
|
threshold_ = 0.0;
|
|
|
|
doppler_step_ = 0;
|
2018-12-02 04:29:11 +00:00
|
|
|
gnss_synchro_ = nullptr;
|
2019-03-20 14:13:17 +00:00
|
|
|
channel_fsm_ = nullptr;
|
2018-06-03 17:11:16 +00:00
|
|
|
if (in_streams_ > 1)
|
|
|
|
{
|
|
|
|
LOG(ERROR) << "This implementation only supports one input stream";
|
|
|
|
}
|
|
|
|
if (out_streams_ > 0)
|
|
|
|
{
|
|
|
|
LOG(ERROR) << "This implementation does not provide an output stream";
|
|
|
|
}
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2011-10-01 18:45:20 +00:00
|
|
|
GpsL1CaPcpsAcquisition::~GpsL1CaPcpsAcquisition()
|
|
|
|
{
|
2015-05-15 09:47:34 +00:00
|
|
|
delete[] code_;
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2018-12-02 04:29:11 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::stop_acquisition()
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2011-10-01 18:45:20 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::set_threshold(float threshold)
|
|
|
|
{
|
2016-05-13 02:58:23 +00:00
|
|
|
float pfa = configuration_->property(role_ + ".pfa", 0.0);
|
2013-05-26 23:59:04 +00:00
|
|
|
|
2018-03-03 01:03:39 +00:00
|
|
|
if (pfa == 0.0)
|
2013-07-04 13:47:40 +00:00
|
|
|
{
|
2015-02-10 18:30:15 +00:00
|
|
|
threshold_ = threshold;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
threshold_ = calculate_threshold(pfa);
|
2013-07-04 13:47:40 +00:00
|
|
|
}
|
2013-05-16 16:25:51 +00:00
|
|
|
|
2015-05-06 16:10:11 +00:00
|
|
|
DLOG(INFO) << "Channel " << channel_ << " Threshold = " << threshold_;
|
2013-05-26 23:59:04 +00:00
|
|
|
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->set_threshold(threshold_);
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2011-10-01 18:45:20 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::set_doppler_max(unsigned int doppler_max)
|
|
|
|
{
|
|
|
|
doppler_max_ = doppler_max;
|
2016-01-20 17:24:03 +00:00
|
|
|
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->set_doppler_max(doppler_max_);
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2011-10-01 18:45:20 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::set_doppler_step(unsigned int doppler_step)
|
|
|
|
{
|
|
|
|
doppler_step_ = doppler_step;
|
2016-01-20 17:24:03 +00:00
|
|
|
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->set_doppler_step(doppler_step_);
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2017-08-18 10:45:47 +00:00
|
|
|
|
2012-01-27 18:01:17 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::set_gnss_synchro(Gnss_Synchro* gnss_synchro)
|
2011-10-01 18:45:20 +00:00
|
|
|
{
|
2012-10-28 12:09:03 +00:00
|
|
|
gnss_synchro_ = gnss_synchro;
|
2016-01-20 17:24:03 +00:00
|
|
|
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->set_gnss_synchro(gnss_synchro_);
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2012-01-27 18:01:17 +00:00
|
|
|
signed int GpsL1CaPcpsAcquisition::mag()
|
2011-10-01 18:45:20 +00:00
|
|
|
{
|
2018-02-07 07:43:44 +00:00
|
|
|
return acquisition_->mag();
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2013-07-23 18:03:07 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::init()
|
|
|
|
{
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->init();
|
2013-07-23 18:03:07 +00:00
|
|
|
}
|
|
|
|
|
2013-08-28 17:17:57 +00:00
|
|
|
|
2013-07-23 18:03:07 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::set_local_code()
|
|
|
|
{
|
2018-12-03 15:25:11 +00:00
|
|
|
auto* code = new std::complex<float>[code_length_];
|
2013-07-23 18:03:07 +00:00
|
|
|
|
2018-12-03 16:58:18 +00:00
|
|
|
if (acq_parameters_.use_automatic_resampler)
|
|
|
|
{
|
|
|
|
gps_l1_ca_code_gen_complex_sampled(code, gnss_synchro_->PRN, acq_parameters_.resampled_fs, 0);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
gps_l1_ca_code_gen_complex_sampled(code, gnss_synchro_->PRN, fs_in_, 0);
|
|
|
|
}
|
2015-02-14 10:49:06 +00:00
|
|
|
for (unsigned int i = 0; i < sampled_ms_; i++)
|
|
|
|
{
|
2018-03-03 01:03:39 +00:00
|
|
|
memcpy(&(code_[i * code_length_]), code,
|
|
|
|
sizeof(gr_complex) * code_length_);
|
2015-02-14 10:49:06 +00:00
|
|
|
}
|
2013-07-23 18:03:07 +00:00
|
|
|
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->set_local_code(code_);
|
2015-02-14 10:49:06 +00:00
|
|
|
delete[] code;
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2013-08-28 17:17:57 +00:00
|
|
|
|
2011-10-01 18:45:20 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::reset()
|
|
|
|
{
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->set_active(true);
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2016-01-20 21:59:22 +00:00
|
|
|
|
2015-02-10 18:30:15 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::set_state(int state)
|
|
|
|
{
|
2018-02-07 07:43:44 +00:00
|
|
|
acquisition_->set_state(state);
|
2015-02-10 18:30:15 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2013-05-16 16:25:51 +00:00
|
|
|
float GpsL1CaPcpsAcquisition::calculate_threshold(float pfa)
|
|
|
|
{
|
2014-03-16 19:58:29 +00:00
|
|
|
//Calculate the threshold
|
|
|
|
unsigned int frequency_bins = 0;
|
2017-08-18 10:45:47 +00:00
|
|
|
for (int doppler = static_cast<int>(-doppler_max_); doppler <= static_cast<int>(doppler_max_); doppler += doppler_step_)
|
2014-03-16 19:58:29 +00:00
|
|
|
{
|
|
|
|
frequency_bins++;
|
|
|
|
}
|
2016-01-05 09:59:37 +00:00
|
|
|
DLOG(INFO) << "Channel " << channel_ << " Pfa = " << pfa;
|
2014-09-12 18:23:39 +00:00
|
|
|
unsigned int ncells = vector_length_ * frequency_bins;
|
|
|
|
double exponent = 1 / static_cast<double>(ncells);
|
2014-03-16 19:58:29 +00:00
|
|
|
double val = pow(1.0 - pfa, exponent);
|
2018-12-03 15:25:11 +00:00
|
|
|
auto lambda = double(vector_length_);
|
2018-03-03 01:03:39 +00:00
|
|
|
boost::math::exponential_distribution<double> mydist(lambda);
|
2018-12-03 15:25:11 +00:00
|
|
|
auto threshold = static_cast<float>(quantile(mydist, val));
|
2013-05-16 16:25:51 +00:00
|
|
|
|
2014-03-16 19:58:29 +00:00
|
|
|
return threshold;
|
2013-05-16 16:25:51 +00:00
|
|
|
}
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2013-08-28 17:17:57 +00:00
|
|
|
|
2013-07-04 13:47:40 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::connect(gr::top_block_sptr top_block)
|
2011-10-01 18:45:20 +00:00
|
|
|
{
|
2018-12-02 04:29:11 +00:00
|
|
|
if (item_type_ == "gr_complex")
|
2013-07-23 18:03:07 +00:00
|
|
|
{
|
2018-08-08 13:02:29 +00:00
|
|
|
// nothing to connect
|
2013-07-23 18:03:07 +00:00
|
|
|
}
|
2018-12-02 04:29:11 +00:00
|
|
|
else if (item_type_ == "cshort")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
2018-08-08 13:02:29 +00:00
|
|
|
// nothing to connect
|
2015-02-13 01:17:00 +00:00
|
|
|
}
|
2018-12-02 04:29:11 +00:00
|
|
|
else if (item_type_ == "cbyte")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
2018-08-08 13:02:29 +00:00
|
|
|
// Since a byte-based acq implementation is not available,
|
|
|
|
// we just convert cshorts to gr_complex
|
2015-02-13 01:17:00 +00:00
|
|
|
top_block->connect(cbyte_to_float_x2_, 0, float_to_complex_, 0);
|
|
|
|
top_block->connect(cbyte_to_float_x2_, 1, float_to_complex_, 1);
|
2018-08-08 13:02:29 +00:00
|
|
|
top_block->connect(float_to_complex_, 0, acquisition_, 0);
|
2015-02-13 01:17:00 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
LOG(WARNING) << item_type_ << " unknown acquisition item type";
|
|
|
|
}
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2013-07-04 13:47:40 +00:00
|
|
|
void GpsL1CaPcpsAcquisition::disconnect(gr::top_block_sptr top_block)
|
2011-10-01 18:45:20 +00:00
|
|
|
{
|
2018-12-02 04:29:11 +00:00
|
|
|
if (item_type_ == "gr_complex")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
2018-08-08 13:02:29 +00:00
|
|
|
// nothing to disconnect
|
2015-02-13 01:17:00 +00:00
|
|
|
}
|
2018-12-02 04:29:11 +00:00
|
|
|
else if (item_type_ == "cshort")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
2018-08-08 13:02:29 +00:00
|
|
|
// nothing to disconnect
|
2015-02-13 01:17:00 +00:00
|
|
|
}
|
2018-12-02 04:29:11 +00:00
|
|
|
else if (item_type_ == "cbyte")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
|
|
|
top_block->disconnect(cbyte_to_float_x2_, 0, float_to_complex_, 0);
|
|
|
|
top_block->disconnect(cbyte_to_float_x2_, 1, float_to_complex_, 1);
|
2018-08-08 13:02:29 +00:00
|
|
|
top_block->disconnect(float_to_complex_, 0, acquisition_, 0);
|
2015-02-13 01:17:00 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
LOG(WARNING) << item_type_ << " unknown acquisition item type";
|
|
|
|
}
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2013-07-04 13:47:40 +00:00
|
|
|
gr::basic_block_sptr GpsL1CaPcpsAcquisition::get_left_block()
|
2011-10-01 18:45:20 +00:00
|
|
|
{
|
2018-12-02 04:29:11 +00:00
|
|
|
if (item_type_ == "gr_complex")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
2018-08-08 13:02:29 +00:00
|
|
|
return acquisition_;
|
2015-02-13 01:17:00 +00:00
|
|
|
}
|
2018-12-03 21:08:19 +00:00
|
|
|
if (item_type_ == "cshort")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
2018-08-08 13:02:29 +00:00
|
|
|
return acquisition_;
|
2015-02-13 01:17:00 +00:00
|
|
|
}
|
2018-12-04 12:20:49 +00:00
|
|
|
if (item_type_ == "cbyte")
|
2015-02-13 01:17:00 +00:00
|
|
|
{
|
|
|
|
return cbyte_to_float_x2_;
|
|
|
|
}
|
2018-12-08 17:49:31 +00:00
|
|
|
|
|
|
|
LOG(WARNING) << item_type_ << " unknown acquisition item type";
|
|
|
|
return nullptr;
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
|
|
|
|
2012-10-28 12:09:03 +00:00
|
|
|
|
2013-07-04 13:47:40 +00:00
|
|
|
gr::basic_block_sptr GpsL1CaPcpsAcquisition::get_right_block()
|
2011-10-01 18:45:20 +00:00
|
|
|
{
|
2018-02-07 07:43:44 +00:00
|
|
|
return acquisition_;
|
2011-10-01 18:45:20 +00:00
|
|
|
}
|
2018-12-05 15:50:32 +00:00
|
|
|
|
|
|
|
void GpsL1CaPcpsAcquisition::set_resampler_latency(uint32_t latency_samples)
|
|
|
|
{
|
|
|
|
acquisition_->set_resampler_latency(latency_samples);
|
|
|
|
}
|