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			39 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			39 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| ///////////////////////////////////////////////////////////////////////////////////
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| // Copyright (C) 2018 Edouard Griffiths, F4EXB                                   //
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| //                                                                               //
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| // Symbol synchronizer or symbol clock recovery mostly encapsulating             //
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| // liquid-dsp's symsync "object"                                                 //
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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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| 
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| #include "dsp/dsptypes.h"
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| #include "liquid.h"
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| #include <complex.h>
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| 
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| class SymbolSynchronizer
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| {
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| public:
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|     SymbolSynchronizer();
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|     ~SymbolSynchronizer();
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| 
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|     Real run(const Sample& s);
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|     liquid_float_complex runZ(const Sample& s);
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| 
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| private:
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|     symsync_crcf m_sync;
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|     liquid_float_complex m_z[4+4]; // 4 samples per symbol. One symbol plus extra space
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|     liquid_float_complex m_z0;
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|     int m_syncSampleCount;
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| };
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