sdrangel/sdrbase/dsp/nco.h

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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 //
// //
// 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 //
// GNU General Public License V3 for more details. //
// //
// 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"
#include "util/export.h"
class SDRANGEL_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