gr-satnogs/lib/coarse_doppler_correction_c...

61 lines
1.8 KiB
C++

/* -*- c++ -*- */
/*
* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
*
* Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_SATNOGS_COARSE_DOPPLER_CORRECTION_CC_IMPL_H
#define INCLUDED_SATNOGS_COARSE_DOPPLER_CORRECTION_CC_IMPL_H
#include <satnogs/coarse_doppler_correction_cc.h>
#include <gnuradio/fxpt_nco.h>
namespace gr {
namespace satnogs {
class coarse_doppler_correction_cc_impl : public coarse_doppler_correction_cc {
private:
double d_target_freq;
const double d_offset;
const double d_samp_rate;
const size_t d_buf_items;
double d_freq_diff;
gr::fxpt_nco d_nco;
gr_complex *d_nco_buff;
void
new_freq(pmt::pmt_t msg);
public:
coarse_doppler_correction_cc_impl(double target_freq,
double offset,
double sampling_rate);
~coarse_doppler_correction_cc_impl();
// Where all the action really happens
int
work(int noutput_items, gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
} // namespace satnogs
} // namespace gr
#endif /* INCLUDED_SATNOGS_COARSE_DOPPLER_CORRECTION_CC_IMPL_H */