mirror of https://github.com/gnss-sdr/gnss-sdr
158 lines
4.4 KiB
C++
158 lines
4.4 KiB
C++
/*!
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* \file gps_l1_ca_pcps_acquisition_fine_doppler.h
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* \brief Adapts a PCPS acquisition block with fine Doppler estimation to an AcquisitionInterface for
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* GPS L1 C/A signals
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* \authors <ul>
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* <li> Javier Arribas, 2013. jarribas(at)cttc.es
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* </ul> *
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2015 (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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#ifndef GNSS_SDR_GPS_L1_CA_PCPS_ACQUISITION_FINE_DOPPLER_H_
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#define GNSS_SDR_GPS_L1_CA_PCPS_ACQUISITION_FINE_DOPPLER_H_
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#include <string>
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#include <gnuradio/msg_queue.h>
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#include <gnuradio/blocks/stream_to_vector.h>
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#include "gnss_synchro.h"
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#include "acquisition_interface.h"
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#include "pcps_acquisition_fine_doppler_cc.h"
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class ConfigurationInterface;
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/*!
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* \brief This class Adapts a PCPS acquisition block with fine Doppler estimation to an AcquisitionInterface for
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* GPS L1 C/A signals
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*/
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class GpsL1CaPcpsAcquisitionFineDoppler: public AcquisitionInterface
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{
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public:
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GpsL1CaPcpsAcquisitionFineDoppler(ConfigurationInterface* configuration,
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std::string role, unsigned int in_streams,
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unsigned int out_streams, boost::shared_ptr<gr::msg_queue> queue);
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virtual ~GpsL1CaPcpsAcquisitionFineDoppler();
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std::string role()
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{
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return role_;
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}
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/*!
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* \brief Returns "GPS_L1_CA_PCPS_Acquisition_Fine_Doppler"
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*/
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std::string implementation()
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{
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return "GPS_L1_CA_PCPS_Acquisition_Fine_Doppler";
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}
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size_t item_size()
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{
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return item_size_;
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}
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void connect(boost::shared_ptr<gr::top_block> top_block);
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void disconnect(boost::shared_ptr<gr::top_block> top_block);
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boost::shared_ptr<gr::basic_block> get_left_block();
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boost::shared_ptr<gr::basic_block> get_right_block();
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/*!
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* \brief Set acquisition/tracking common Gnss_Synchro object pointer
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* to efficiently exchange synchronization data between acquisition and
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* tracking blocks
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*/
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void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro);
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/*!
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* \brief Set acquisition channel unique ID
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*/
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void set_channel(unsigned int channel);
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/*!
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* \brief Set statistics threshold of PCPS algorithm
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*/
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void set_threshold(float threshold);
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/*!
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* \brief Set maximum Doppler off grid search
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*/
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void set_doppler_max(unsigned int doppler_max);
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/*!
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* \brief Set Doppler steps for the grid search
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*/
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void set_doppler_step(unsigned int doppler_step);
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/*!
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* \brief Set tracking channel internal queue
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*/
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void set_channel_queue(concurrent_queue<int> *channel_internal_queue);
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/*!
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* \brief Initializes acquisition algorithm.
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*/
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void init();
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void set_local_code();
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/*!
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* \brief Returns the maximum peak of grid search
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*/
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signed int mag();
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/*!
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* \brief Restart acquisition algorithm
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*/
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void reset();
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private:
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pcps_acquisition_fine_doppler_cc_sptr acquisition_cc_;
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size_t item_size_;
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std::string item_type_;
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unsigned int vector_length_;
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unsigned int channel_;
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float threshold_;
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int doppler_max_;
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unsigned int doppler_step_;
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int doppler_min_;
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unsigned int sampled_ms_;
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int max_dwells_;
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long fs_in_;
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long if_;
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bool dump_;
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std::string dump_filename_;
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std::complex<float> * code_;
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Gnss_Synchro * gnss_synchro_;
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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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concurrent_queue<int> *channel_internal_queue_;
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};
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#endif /* GNSS_SDR_GPS_L1_CA_PCPS_ACQUISITION_FINE_DOPPLER_H_ */
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