kopia lustrzana https://github.com/proto17/dji_droneid
77 wiersze
2.6 KiB
C++
77 wiersze
2.6 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2022 gr-droneid author.
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*
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* This 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, or (at your option)
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* any later version.
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*
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* This software 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 this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gnuradio/io_signature.h>
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#include "normalized_xcorr_estimate_impl.h"
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#include <volk/volk.h>
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namespace gr {
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namespace droneid {
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normalized_xcorr_estimate::sptr
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normalized_xcorr_estimate::make(std::vector<std::complex<float>> filter_taps) {
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return gnuradio::get_initial_sptr
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(new normalized_xcorr_estimate_impl(filter_taps));
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}
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/*
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* The private constructor
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*/
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normalized_xcorr_estimate_impl::normalized_xcorr_estimate_impl(std::vector<std::complex<float>> filter_taps)
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: gr::sync_block("normalized_xcorr_estimate",
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gr::io_signature::make(1, 1, sizeof(gr_complex)),
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gr::io_signature::make(1, 1, sizeof(float))) {
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xcorr_ = std::unique_ptr<normalized_xcorr>(new normalized_xcorr(filter_taps));
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set_history(filter_taps.size());
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set_alignment(std::max(1, static_cast<int32_t>(volk_get_alignment() / sizeof(float))));
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}
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/*
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* Our virtual destructor.
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*/
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normalized_xcorr_estimate_impl::~normalized_xcorr_estimate_impl() {
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}
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int
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normalized_xcorr_estimate_impl::work(int noutput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items) {
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const auto *in = (const gr_complex *) input_items[0];
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auto *out = (float *) output_items[0];
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xcorr_->run(in, noutput_items, out);
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// Do <+signal processing+>
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// Tell runtime system how many output items we produced.
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return noutput_items;
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}
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} /* namespace droneid */
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} /* namespace gr */
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