kopia lustrzana https://github.com/jamescoxon/dl-fldigi
119 wiersze
2.6 KiB
C++
119 wiersze
2.6 KiB
C++
// ----------------------------------------------------------------------------
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// viewpsk.h -- psk modem
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//
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// Copyright (C) 2008
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// Dave Freese, W1HKJ
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//
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// This file is part of fldigi.
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//
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// Fldigi 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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// Fldigi 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 fldigi. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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#ifndef _VIEWPSK_H
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#define _VIEWPSK_H
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#include "complex.h"
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#include "modem.h"
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#include "globals.h"
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#include "filters.h"
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#include "pskeval.h"
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//=====================================================================
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#define VPSKSAMPLERATE (8000)
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#define VAFCDECAY 8
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#define MAXCHANNELS 30
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#define VSEARCHWIDTH 70
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#define VSIGSEARCH 5
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#define VWAITCOUNT 4
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#define NULLFREQ 1e6
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//=====================================================================
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struct CHANNEL {
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double phaseacc;
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cmplx prevsymbol;
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cmplx quality;
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unsigned int shreg;
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double metric;
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double frequency;
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double freqerr;
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double phase;
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double syncbuf[16];
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C_FIR_filter *fir1;
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C_FIR_filter *fir2;
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int bits;
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double bitclk;
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unsigned int dcdshreg;
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int dcd;
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int waitcount;
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int timeout;
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bool reset;
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int acquire;
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};
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class viewpsk {
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private:
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trx_mode viewmode;
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int symbollen;
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double bandwidth;
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int dcdbits;
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int fa;
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int fb;
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int ftest;
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double test_peak_amp;
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time_t now;
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bool reset_all;
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bool tracked;
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bool browser_changed;
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CHANNEL channel[MAXCHANNELS];
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int nchannels;
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int lowfreq;
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pskeval* evalpsk;
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void rx_symbol(int ch, cmplx symbol);
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void rx_bit(int ch, int bit);
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void findsignal(int);
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void afc(int);
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inline void timeout_check();
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inline void insert();
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public:
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viewpsk(pskeval* eval, trx_mode mode);
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~viewpsk();
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void init();
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void restart(trx_mode mode);
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void rx_init(){};
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void tx_init(SoundBase *sc){};
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void restart() {};
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int rx_process(const double *buf, int len);
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int get_freq(int n);
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void set_freq(int n, double f) { channel[n].frequency = f; }
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void findsignals();
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void clearch(int n);
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void clear();
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};
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extern viewpsk *pskviewer;
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#endif
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