firfilter.h

Go to the documentation of this file.

/***************************************************************************
                          firfilter.h  -  description
                             -------------------
    begin                : Wed Jun 11 2003
    copyright            : (C) 2003 by Peter Haase
    email                : p.haase@tuhh.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library 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     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the Free Software   *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef FIRFILTER_H
#define FIRFILTER_H


#include <simthetic/phbib.h>
#include <simthetic/containers.h>

namespace simthlib
{


template<class T>
class Filter
{
  public:
    virtual ~Filter() {};
    virtual void filter(const simth::Array2d<T>& symbols, simth::Array2d<T>* filteredSymbols) = 0;

    virtual void print(std::ostream &os) const = 0;
};

template<class T>
class FirFilter2D : public Filter<T>
{
  public:

    enum Filter_Shape { RECT, CONE, HAMMING };

    FirFilter2D(int numFilterCoeffDim1,int numFilterCoeffDim2,Filter_Shape filterMode);

    virtual ~FirFilter2D();

    virtual void filter(const simth::Array2d<T>& symbols, simth::Array2d<T>* filteredSymbols);

    virtual void print(std::ostream &os) const;

  private:

    simth::Array2d<double> filterCoefficients;

    int sideLength1;

    int sideLength2;

    std::string fShapeStr;
};

}

#endif

---