78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/* -*- c++ -*- */
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/*
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* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
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*
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* Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
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*
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* This program 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 of the License, or
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* (at your option) any later version.
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*
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* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_SATNOGS_DOPPLER_CORRECTION_CC_IMPL_H
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#define INCLUDED_SATNOGS_DOPPLER_CORRECTION_CC_IMPL_H
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#include <satnogs/doppler_correction_cc.h>
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#include <satnogs/freq_drift.h>
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#include <satnogs/doppler_fit.h>
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#include <gnuradio/fxpt_nco.h>
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#include <deque>
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namespace gr {
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namespace satnogs {
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class doppler_correction_cc_impl : public doppler_correction_cc {
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private:
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const double d_target_freq;
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const double d_offset;
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const double d_samp_rate;
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const size_t d_update_period;
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const size_t d_est_thrhld;
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const size_t d_corrections_per_sec;
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gr::fxpt_nco d_nco;
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doppler_fit d_doppler_fit_engine;
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double d_freq_diff;
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bool d_have_est;
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size_t d_freq_est_num;
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size_t d_corrections;
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size_t d_corrected_samples;
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std::deque<freq_drift> d_doppler_freqs;
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double *d_predicted_freqs;
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gr_complex *d_nco_buff;
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boost::mutex d_mutex;
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void
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new_freq(pmt::pmt_t msg);
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void
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reset(pmt::pmt_t msg);
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public:
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doppler_correction_cc_impl(double target_freq,
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double offset,
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double sampling_rate,
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size_t corrections_per_sec);
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~doppler_correction_cc_impl();
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// Where all the action really happens
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int
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work(int noutput_items, gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items);
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};
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} // namespace satnogs
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} // namespace gr
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#endif /* INCLUDED_SATNOGS_DOPPLER_CORRECTION_CC_IMPL_H */
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