mirror of https://github.com/f4exb/sdrangel.git
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015 F4EXB //
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// written by Edouard Griffiths //
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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 as version 3 of the License, or //
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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 V3 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 PLUGINS_CHANNEL_BFM_RDSDEMOD_H_
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#define PLUGINS_CHANNEL_BFM_RDSDEMOD_H_
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#include "dsp/dsptypes.h"
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class RDSDemod
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{
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public:
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RDSDemod();
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~RDSDemod();
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void process(Real rdsSample, Real pilotSample);
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protected:
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Real filter_lp_2400_iq(Real in, int iqIndex);
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int sign(Real a);
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void biphase(Real acc);
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void print_delta(char b);
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void output_bit(char b);
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private:
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Real m_xv[2][2+1];
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Real m_yv[2][2+1];
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Real m_rdsBB;
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Real m_rdsBB_1;
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Real m_rdsClockPhase;
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Real m_rdsClockOffset;
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Real m_rdsClockLO;
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Real m_rdsClockLO_1;
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int m_numSamples;
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Real m_acc;
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Real m_acc_1;
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int m_counter;
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int m_readingFrame;
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int m_totErrors[2];
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int m_dbit;
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};
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#endif /* PLUGINS_CHANNEL_BFM_RDSDEMOD_H_ */
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