/usr/include/itpp/signal/source.h is in libitpp-dev 4.3.1-8.
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* \file
* \brief Deterministic sources - header file
* \author Tobias Ringstrom and Tony Ottosson
*
* -------------------------------------------------------------------------
*
* Copyright (C) 1995-2010 (see AUTHORS file for a list of contributors)
*
* This file is part of IT++ - a C++ library of mathematical, signal
* processing, speech processing, and communications classes and functions.
*
* IT++ 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, either version 3 of the License, or (at your option) any
* later version.
*
* IT++ 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 for more
* details.
*
* You should have received a copy of the GNU General Public License along
* with IT++. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef SOURCE_H
#define SOURCE_H
#include <itpp/base/vec.h>
#include <itpp/itexports.h>
namespace itpp
{
//! \addtogroup detsource
/*!
\brief Sine-wave source
\ingroup detsource
*/
class ITPP_EXPORT Sine_Source
{
public:
//! Constructor. Set frequency, mean, amplitude, and start phase
Sine_Source(double freq, double mean = 0.0, double ampl = 1.0, double inphase = 0.0);
//! Return a single sample
double operator()() { return sample(); }
//! Get a sample vector.
vec operator()(int n);
//! Get a sample matrix.
mat operator()(int h, int w);
protected:
private:
double sample();
double m, A, theta, dtheta;
};
/*!
\brief Square-wave source
\ingroup detsource
*/
class ITPP_EXPORT Square_Source
{
public:
//! Constructor. Set frequency, mean, amplitude, and start phase
Square_Source(double freq, double mean = 0.0, double ampl = 1.0, double inphase = 0.0);
//! Return a single sample
double operator()() { return sample(); }
//! Get a sample vector.
vec operator()(int n);
//! Get a sample matrix.
mat operator()(int h, int w);
protected:
private:
double sample();
double m, A, theta, dtheta;
};
/*!
\brief Triangle-wave source
\ingroup detsource
*/
class ITPP_EXPORT Triangle_Source
{
public:
//! Constructor. Set frequency, mean, amplitude and start phase
Triangle_Source(double freq, double mean = 0.0, double ampl = 1.0, double inphase = 0.0);
//! Return a single sample
double operator()() { return sample(); }
//! Get a sample vector.
vec operator()(int n);
//! Get a sample matrix.
mat operator()(int h, int w);
protected:
private:
double sample();
double m, A, theta, dtheta;
};
/*!
\brief Sawtooth-wave source
\ingroup detsource
*/
class ITPP_EXPORT Sawtooth_Source
{
public:
//! Constructor. Set frequency, mean, amplitude, and start phase
Sawtooth_Source(double freq, double mean = 0.0, double ampl = 1.0, double inphase = 0.0);
//! Return a single sample
double operator()() { return sample(); }
//! Get a sample vector.
vec operator()(int n);
//! Get a sample matrix.
mat operator()(int h, int w);
protected:
private:
double sample();
double m, A, theta, dtheta;
};
/*!
\brief Impulse source
\ingroup detsource
*/
class ITPP_EXPORT Impulse_Source
{
public:
//! Constructor. Set frequency, amplitude and start phase
Impulse_Source(double freq, double ampl = 1.0, double inphase = 0.0);
//! Return a single sample
double operator()() { return sample(); }
//! Get a sample vector.
vec operator()(int n);
//! Get a sample matrix.
mat operator()(int h, int w);
protected:
private:
double sample();
double A, pos, dtheta;
};
/*!
\brief Pattern source
\ingroup detsource
*/
class ITPP_EXPORT Pattern_Source
{
public:
//! Constructor. Set pattern and start position
Pattern_Source(const vec &pattern, int start_pos = 0);
//! Destructor
virtual ~Pattern_Source() { }
//! Return a single sample
double operator()() { return sample(); }
//! Get a sample vector.
vec operator()(int n);
//! Get a sample matrix.
mat operator()(int h, int w);
protected:
private:
double sample();
int pos;
vec pat;
double mean, var;
};
} //namespace itpp
#endif // #ifndef SOURCE_H
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