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/*!
* \file galileo_e1_pcps_tong_ambiguous_acquisition.h
* \brief Adapts a PCPS Tong acquisition block to an AcquisitionInterface for
* Galileo E1 Signals
* \author Marc Molina, 2013. marc.molina.pena(at)gmail.com
*
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_GALILEO_E1_PCPS_TONG_AMBIGUOUS_ACQUISITION_H
#define GNSS_SDR_GALILEO_E1_PCPS_TONG_AMBIGUOUS_ACQUISITION_H
#include "channel_fsm.h"
#include "gnss_synchro.h"
#include "pcps_tong_acquisition_cc.h"
#include <gnuradio/blocks/stream_to_vector.h>
#include <memory>
#include <string>
#include <vector>
/** \addtogroup Acquisition
* \{ */
/** \addtogroup Acq_adapters
* \{ */
class ConfigurationInterface;
/*!
* \brief Adapts a PCPS Tong acquisition block to an AcquisitionInterface
* for Galileo E1 Signals
*/
class GalileoE1PcpsTongAmbiguousAcquisition : public AcquisitionInterface
{
public:
GalileoE1PcpsTongAmbiguousAcquisition(
const ConfigurationInterface* configuration,
const std::string& role,
unsigned int in_streams,
unsigned int out_streams);
~GalileoE1PcpsTongAmbiguousAcquisition() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Galileo_E1_PCPS_Tong_Ambiguous_Acquisition"
*/
inline std::string implementation() override
{
return "Galileo_E1_PCPS_Tong_Ambiguous_Acquisition";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
/*!
* \brief Set acquisition/tracking common Gnss_Synchro object pointer
* to efficiently exchange synchronization data between acquisition and
* tracking blocks
*/
void set_gnss_synchro(Gnss_Synchro* p_gnss_synchro) override;
/*!
* \brief Set acquisition channel unique ID
*/
inline void set_channel(unsigned int channel) override
{
channel_ = channel;
acquisition_cc_->set_channel(channel_);
}
/*!
* \brief Set channel fsm associated to this acquisition instance
*/
inline void set_channel_fsm(std::weak_ptr<ChannelFsm> channel_fsm) override
{
channel_fsm_ = channel_fsm;
acquisition_cc_->set_channel_fsm(channel_fsm);
}
/*!
* \brief Set statistics threshold of TONG algorithm
*/
void set_threshold(float threshold) override;
/*!
* \brief Set maximum Doppler off grid search
*/
void set_doppler_max(unsigned int doppler_max) override;
/*!
* \brief Set Doppler steps for the grid search
*/
void set_doppler_step(unsigned int doppler_step) override;
/*!
* \brief Initializes acquisition algorithm.
*/
void init() override;
/*!
* \brief Sets local code for Galileo E1 TONG acquisition algorithm.
*/
void set_local_code() override;
/*!
* \brief Returns the maximum peak of grid search
*/
signed int mag() override;
/*!
* \brief Restart acquisition algorithm
*/
void reset() override;
/*!
* \brief If state = 1, it forces the block to start acquiring from the first sample
*/
void set_state(int state) override;
/*!
* \brief Stop running acquisition
*/
void stop_acquisition() override;
void set_resampler_latency(uint32_t latency_samples __attribute__((unused))) override{};
private:
float calculate_threshold(float pfa) const;
const ConfigurationInterface* configuration_;
pcps_tong_acquisition_cc_sptr acquisition_cc_;
gr::blocks::stream_to_vector::sptr stream_to_vector_;
std::weak_ptr<ChannelFsm> channel_fsm_;
std::vector<std::complex<float>> code_;
Gnss_Synchro* gnss_synchro_;
std::string item_type_;
std::string dump_filename_;
std::string role_;
int64_t fs_in_;
size_t item_size_;
float threshold_;
unsigned int vector_length_;
unsigned int code_length_;
unsigned int channel_;
unsigned int doppler_max_;
unsigned int doppler_step_;
unsigned int sampled_ms_;
unsigned int tong_init_val_;
unsigned int tong_max_val_;
unsigned int tong_max_dwells_;
unsigned int in_streams_;
unsigned int out_streams_;
bool dump_;
};
/** \} */
/** \} */
#endif // GNSS_SDR_GALILEO_E1_PCPS_TONG_AMBIGUOUS_ACQUISITION_H