mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-05 00:11:16 -05:00
66 lines
3.2 KiB
C++
66 lines
3.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2017 F4EXB //
|
|
// written by Edouard Griffiths //
|
|
// //
|
|
// 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 //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// 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 SDRBASE_DSP_PROJECTOR_H
|
|
#define SDRBASE_DSP_PROJECTOR_H
|
|
|
|
#include "export.h"
|
|
#include "dsptypes.h"
|
|
|
|
class SDRBASE_API Projector
|
|
{
|
|
public:
|
|
enum ProjectionType
|
|
{
|
|
ProjectionReal = 0, //!< Extract real part
|
|
ProjectionImag, //!< Extract imaginary part
|
|
ProjectionMagLin, //!< Calculate linear magnitude or modulus
|
|
ProjectionMagSq, //!< Calculate linear squared magnitude or power
|
|
ProjectionMagDB, //!< Calculate logarithmic (dB) of squared magnitude
|
|
ProjectionPhase, //!< Calculate phase
|
|
ProjectionDOAP, //!< Calculate ambiguous DOA from phase as phase difference (assuming positive)
|
|
ProjectionDOAN, //!< Calculate ambiguous DOA from phase as phase difference (assuming negative)
|
|
ProjectionDPhase, //!< Calculate phase derivative i.e. instantaneous frequency scaled to sample rate
|
|
ProjectionBPSK, //!< Phase comparator BPSK evaluation
|
|
ProjectionQPSK, //!< Phase comparator QPSK evaluation
|
|
Projection8PSK, //!< Phase comparator 8-PSK evaluation
|
|
Projection16PSK, //!< Phase comparator 16-PSK evaluation
|
|
nbProjectionTypes //!< Gives the number of projections in the enum
|
|
};
|
|
|
|
Projector(ProjectionType projectionType);
|
|
~Projector();
|
|
|
|
ProjectionType getProjectionType() const { return m_projectionType; }
|
|
void settProjectionType(ProjectionType projectionType) { m_projectionType = projectionType; }
|
|
void setCache(Real *cache) { m_cache = cache; }
|
|
void setCacheMaster(bool cacheMaster) { m_cacheMaster = cacheMaster; }
|
|
|
|
Real run(const Sample& s);
|
|
Real run(const std::complex<float>& s);
|
|
|
|
private:
|
|
static Real normalizeAngle(Real angle);
|
|
ProjectionType m_projectionType;
|
|
Real m_prevArg;
|
|
Real *m_cache;
|
|
bool m_cacheMaster;
|
|
};
|
|
|
|
#endif // SDRBASE_DSP_PROJECTOR_H
|