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			46 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			46 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
|  | ///////////////////////////////////////////////////////////////////////////////////
 | ||
|  | // Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
 | ||
|  | // written by Christian Daniel                                                   //
 | ||
|  | //                                                                               //
 | ||
|  | // This program is free software; you can redistribute it and/or modify          //
 | ||
|  | // it under the terms of the GNU General Public License as published by          //
 | ||
|  | // the Free Software Foundation as version 3 of the License, or                  //
 | ||
|  | //                                                                               //
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|  | // This program is distributed in the hope that it will be useful,               //
 | ||
|  | // but WITHOUT ANY WARRANTY; without even the implied warranty of                //
 | ||
|  | // 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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|  | // You should have received a copy of the GNU General Public License             //
 | ||
|  | // along with this program. If not, see <http://www.gnu.org/licenses/>.          //
 | ||
|  | ///////////////////////////////////////////////////////////////////////////////////
 | ||
|  | 
 | ||
|  | #ifndef INCLUDE_NCO_H
 | ||
|  | #define INCLUDE_NCO_H
 | ||
|  | 
 | ||
|  | #include "dsp/dsptypes.h"
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|  | #include "util/export.h"
 | ||
|  | 
 | ||
|  | class SDRANGELOVE_API NCO { | ||
|  | private: | ||
|  | 	enum { | ||
|  | 		TableSize = (1 << 12), | ||
|  | 	}; | ||
|  | 	static Real m_table[TableSize]; | ||
|  | 	static bool m_tableInitialized; | ||
|  | 
 | ||
|  | 	static void initTable(); | ||
|  | 
 | ||
|  | 	int m_phaseIncrement; | ||
|  | 	int m_phase; | ||
|  | 
 | ||
|  | public: | ||
|  | 	NCO(); | ||
|  | 
 | ||
|  | 	void setFreq(Real freq, Real sampleRate); | ||
|  | 	Real next(); | ||
|  | 	Complex nextIQ(); | ||
|  | }; | ||
|  | 
 | ||
|  | #endif // INCLUDE_NCO_H
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