不韋 呂 / FrequencyResponseDrawer

FrqRespDrawer class to draw frequency response for digital filter. ディジタルフィルタの周波数特性を，周波数軸をログスケールで描画するための　FrqRespDrawer クラス． このライブラリを登録した際のプログラム：「F746_FrequencyResponseDrawer_Demo」

Dependents:   F746_SD_WavPlayer F746_SD_GraphicEqualizer_ren0620 F746_FrequencyResponseDrawer_Demo F746_SD_VarableFilter ... more

FrequancyResponseBase.hpp

Committer:
MikamiUitOpen
Date:
2016-05-01
Revision:
0:0bc63b49e2a3
Child:
1:19a32f6279e6

File content as of revision 0:0bc63b49e2a3:

//-----------------------------------------------------------
//  FrequencyResponse class (abstract base class)
//      Derived class of this class mest be used to give
//      argument of FrqRespDrawer::DrawGraph()
//
//      AbsH_z() must be overrided
//
//  2016/05/01, Copyright (c) 2016 MIKAMI, Naoki
//-----------------------------------------------------------

#ifndef FREQUENCY_RESPONSE_BASE_HPP
#define FREQUENCY_RESPONSE_BASE_HPP

#include <complex>  // requisite for complex

namespace Mikami
{
    typedef complex<float> Complex; // define "Complex"

    class FrequencyResponse
    {
    public:
        // 周波数応答の絶対値を返す関数, 引数: z^(-1)
        virtual float AbsH_z(Complex u) = 0;

    protected:
        FrequencyResponse() {}
    };
}
#endif  // F746_FREQUENCY_RESPONSE_BASE_HPP