correlator.h
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/* -*- c++ -*- */
/*
* Copyright 2013 Communications Engineering Lab (CEL) / Karlsruhe Institute of Technology (KIT)
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_LTE_CORRELATOR_H
#define INCLUDED_LTE_CORRELATOR_H
#include <lte/api.h>
#include <gnuradio/gr_complex.h>
#include <fftw3.h>
namespace gr {
namespace lte {
/*!
* \brief This is a helper class to provide Fast Correlation using FFTW3f
*
*/
class LTE_API correlator
{
public:
correlator(gr_complex* in1, gr_complex* in2, gr_complex *out, int len);
~correlator();
void execute();
void get_maximum(int &pos, float &max );
private:
//external inputs and outputs
gr_complex *d_in1;
gr_complex *d_in2;
gr_complex *d_out_p;
//internal input and output buffers
gr_complex *d_in;
gr_complex *d_out;
int d_len;
// FFTW Planner
fftwf_plan d_plan_f;
fftwf_plan d_plan_r;
//results after fourier transform
gr_complex* d_f1;
gr_complex* d_f2;
gr_complex* d_res_f;
gr_complex* d_res_t;
float* d_abs;
};
} // namespace lte
} // namespace gr
#endif /* INCLUDED_LTE_CORRELATOR_H */
api.h
LTE_API
#define LTE_API
Definition api.h:30
gr::lte::correlator
This is a helper class to provide Fast Correlation using FFTW3f.
Definition correlator.h:38
gr::lte::correlator::correlator
correlator(gr_complex *in1, gr_complex *in2, gr_complex *out, int len)
gr::lte::correlator::execute
void execute()
gr::lte::correlator::~correlator
~correlator()
gr::lte::correlator::get_maximum
void get_maximum(int &pos, float &max)
gr
Definition bch_crc_check_ant_chooser_bb.h:28