pcps_quicksync_acquisition_cc.h File Reference

This class implements a Parallel Code Phase Search Acquisition with the QuickSync Algorithm. More...

#include "channel_fsm.h"
#include "gnss_sdr_fft.h"
#include "gnss_synchro.h"
#include <gnuradio/block.h>
#include <gnuradio/gr_complex.h>
#include <algorithm>
#include <cassert>
#include <fstream>
#include <functional>
#include <memory>
#include <string>
#include <utility>
#include <vector>

Go to the source code of this file.

Classes
class	pcps_quicksync_acquisition_cc
	This class implements a Parallel Code Phase Search Acquisition with the implementation of the Sparse QuickSync Algorithm. More...

Typedefs
using	pcps_quicksync_acquisition_cc_sptr = gnss_shared_ptr< pcps_quicksync_acquisition_cc >

Functions
pcps_quicksync_acquisition_cc_sptr	pcps_quicksync_make_acquisition_cc (uint32_t folding_factor, uint32_t sampled_ms, uint32_t max_dwells, uint32_t doppler_max, int64_t fs_in, int32_t samples_per_ms, int32_t samples_per_code, bool bit_transition_flag, bool dump, const std::string &dump_filename, bool enable_monitor_output)

Detailed Description

This class implements a Parallel Code Phase Search Acquisition with the QuickSync Algorithm.

Acquisition strategy (Kay Borre book CFAR + threshold).

1. Compute the input signal power estimation
2. Doppler serial search loop
3. Perform folding of the incoming signal and local generated code
4. Perform the FFT-based circular convolution (parallel time search)
5. Record the maximum peak and the associated synchronization parameters
6. Compute the test statistics and compare to the threshold
7. Declare positive or negative acquisition using a message port
8. Obtain the adequate acquisition parameters by correlating the incoming signal shifted by the possible folded delays

Kay Borre book: K.Borre, D.M.Akos, N.Bertelsen, P.Rinder, and S.H.Jensen, "A Software-Defined GPS and Galileo Receiver. A Single-Frequency Approach", Birkha user, 2007. pp 81-84

Date

Jun2 2014

Author

Damian Miralles Sanchez, dmira.nosp@m.lles.nosp@m.2009@.nosp@m.gmai.nosp@m.l.com

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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

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Definition in file pcps_quicksync_acquisition_cc.h.