mirror of https://github.com/gnss-sdr/gnss-sdr
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/*!
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* \file pulse_blanking_cc.h
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* \brief Implements a pulse blanking algorithm
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* \author Javier Arribas (jarribas(at)cttc.es)
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* Antonio Ramos (antonio.ramosdet(at)gmail.com)
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* -----------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2019 (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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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#ifndef GNSS_SDR_PULSE_BLANKING_CC_H
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#define GNSS_SDR_PULSE_BLANKING_CC_H
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#if GNURADIO_USES_STD_POINTERS
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#include <memory>
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#else
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#include <boost/shared_ptr.hpp>
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#endif
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#include <gnuradio/block.h>
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#include <volk_gnsssdr/volk_gnsssdr_alloc.h> // for volk_gnsssdr::vector
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#include <cstdint>
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/** \addtogroup Input_Filter
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* \{ */
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/** \addtogroup Input_filter_gnuradio_blocks input_filter_gr_blocks
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* GNU Radio blocks implementing input filters,
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* \{ */
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class pulse_blanking_cc;
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#if GNURADIO_USES_STD_POINTERS
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using pulse_blanking_cc_sptr = std::shared_ptr<pulse_blanking_cc>;
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#else
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using pulse_blanking_cc_sptr = boost::shared_ptr<pulse_blanking_cc>;
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#endif
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pulse_blanking_cc_sptr make_pulse_blanking_cc(
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float pfa,
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int32_t length,
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int32_t n_segments_est,
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int32_t n_segments_reset);
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class pulse_blanking_cc : public gr::block
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{
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public:
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~pulse_blanking_cc() = default;
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int general_work(int noutput_items __attribute__((unused)), gr_vector_int &ninput_items __attribute__((unused)),
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gr_vector_const_void_star &input_items, gr_vector_void_star &output_items);
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private:
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friend pulse_blanking_cc_sptr make_pulse_blanking_cc(float pfa, int32_t length, int32_t n_segments_est, int32_t n_segments_reset);
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pulse_blanking_cc(float pfa, int32_t length, int32_t n_segments_est, int32_t n_segments_reset);
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volk_gnsssdr::vector<gr_complex> zeros_;
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float noise_power_estimation_;
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float thres_;
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float pfa_;
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int32_t length_;
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int32_t n_segments_;
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int32_t n_segments_est_;
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int32_t n_segments_reset_;
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int32_t n_deg_fred_;
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bool last_filtered_;
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};
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/** \} */
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/** \} */
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#endif // GNSS_SDR_PULSE_BLANKING_CC_H
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