The experiment using this program is introduced on "Interface" No.2, CQ publishing Co.,Ltd, 2015. 本プログラムを使った実験は,CQ出版社のインターフェース 2015年2月号で紹介しています.
Dependencies: DSProcessingIO mbed
IIR_Cascade.hpp
- Committer:
- CQpub0Mikami
- Date:
- 2014-07-15
- Revision:
- 0:398107c96b1b
File content as of revision 0:398107c96b1b:
//-------------------------------------------------------------- // IIR filter ---- Cascade structure // Copyright (c) 2014 MIKAMI, Naoki, 2014/07/15 //-------------------------------------------------------------- #ifndef IIR_CASCADE_HPP #define IIR_CASCADE_HPP #include "mbed.h" #include "Biquad.hpp" namespace Mikami { // IIR filter -- Cascade structure template<int order> class IirCascade { private: Biquad hk_[order]; // Elements of cascade structure const float G0_; // gain factor IirCascade(const IirCascade&); IirCascade& operator=(const IirCascade&); public: IirCascade(float g0, const Biquad::Coefs ck[]) : G0_(g0) { for (int k=0; k<order; k++) hk_[k] = Biquad(ck[k]); } float Execute(float xn) { float yn = G0_*xn; for (int k=0; k<order; k++) yn = hk_[k].Execute(yn); return yn; } void Clear() { for (int k=0; k<order; k++) hk_[k].Clear(); } }; } #endif // IIR_CASCADE_HPP