CQpub0 Mikami
The experiment using this program is introduced on "Interface" No.12, CQ publishing Co.,Ltd, 2014. 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 2014年12月号で紹介しています．
Dependencies: DSProcessingIO mbed
Diff: FIR_Symmetry.hpp
- Revision:
- 0:4498a5360dde
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/FIR_Symmetry.hpp Tue Jul 15 08:21:30 2014 +0000
@@ -0,0 +1,36 @@
+//--------------------------------------------------------------
+// FIR filter ---- Symmetry structure
+// Copyright (c) 2014 MIKAMI, Naoki, 2014/06/20
+//--------------------------------------------------------------
+
+#ifndef FIR_SYMMETRY_HPP
+#define FIR_SYMMETRY_HPP
+
+#include "mbed.h"
+#include "FirBaseClass.hpp"
+
+namespace Mikami
+{
+ template<int order> class FirSymmetry : public FirBase<order>
+ {
+ public:
+ using FirBase<order>::xn_;
+
+ FirSymmetry(const float hk[]) : FirBase<order>(hk) {}
+
+ virtual float Execute(float xin)
+ {
+ xn_[0] = xin;
+
+ float acc = hm_[order/2]*xn_[order/2];
+ for (int k=0; k<order/2; k++)
+ acc = acc + hm_[k]*(xn_[k] + xn_[order-k]);
+
+ FirBase<order>::Move();
+
+ return acc;
+ }
+ };
+}
+#endif // FIR_SYMMETRY_HPP
+