79 lines
2.5 KiB
C++
79 lines
2.5 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) 2018, 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_LRPT_SYNC_IMPL_H
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#define INCLUDED_SATNOGS_LRPT_SYNC_IMPL_H
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#include <satnogs/lrpt_sync.h>
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#include <satnogs/convolutional_deinterleaver.h>
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#include <gnuradio/digital/constellation.h>
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namespace gr {
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namespace satnogs {
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class lrpt_sync_impl : public lrpt_sync {
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public:
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lrpt_sync_impl(size_t threshold);
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~lrpt_sync_impl();
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int
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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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private:
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const size_t d_thresh;
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const uint64_t d_asm_coded;
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const size_t d_asm_coded_len;
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const uint64_t d_asm_coded_mask;
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const int d_window;
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const size_t d_coded_cadu_len;
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bool d_frame_sync;
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size_t d_received;
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gr_complex d_rotate;
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digital::constellation_qpsk::sptr d_qpsk;
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uint64_t d_shift_reg0;
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uint64_t d_shift_reg1;
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uint64_t d_shift_reg2;
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uint64_t d_shift_reg3;
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gr_complex *d_rotate_pi2;
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gr_complex *d_rotate_2pi2;
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gr_complex *d_rotate_3pi2;
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gr_complex *d_corrected;
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uint8_t *d_coded_cadu;
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int
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work_no_sync(const gr_complex *in, int noutput_items);
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int
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work_sync(const gr_complex *in, int noutput_items);
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bool
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found_sync(uint64_t reg);
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};
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} // namespace satnogs
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} // namespace gr
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#endif /* INCLUDED_SATNOGS_LRPT_SYNC_IMPL_H */
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