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/* -*- c++ -*- */
/*
* Copyright 2004 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_DAB_OFDM_COARSE_FREQUENCY_CORRECT_IMPL_H
#define INCLUDED_DAB_OFDM_COARSE_FREQUENCY_CORRECT_IMPL_H
#include <grdab/ofdm_coarse_frequency_correct.h>
namespace gr {
namespace dab {
class ofdm_coarse_frequency_correct_impl : public ofdm_coarse_frequency_correct
{
private:
float mag_squared(const gr_complex sample);
void correlate_energy(const gr_complex *symbol);
unsigned int d_fft_length;
unsigned int d_num_carriers;
unsigned int d_cp_length;
unsigned int d_symbol_num;
unsigned int d_zeros_on_left;
unsigned int d_freq_offset;
int d_delta_f;
public:
ofdm_coarse_frequency_correct_impl(unsigned int fft_length, unsigned int num_carriers, unsigned int cp_length);
int work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
}
}
#endif /* INCLUDED_DAB_OFDM_COARSE_FREQUENCY_CORRECT_H */
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