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

Revision:
0:b811ec8a7e8a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FIR_Direct.hpp	Tue Jul 15 08:45:04 2014 +0000
@@ -0,0 +1,36 @@
+//--------------------------------------------------------------
+// FIR filter ---- Direct structure
+// copyright (c) 2014 MIKAMI, Naoki, 2014/06/20
+//--------------------------------------------------------------
+
+#ifndef FIR_DIRECT_HPP
+#define FIR_DIRECT_HPP
+
+#include "mbed.h"
+#include "FirBaseClass.hpp"
+
+namespace Mikami
+{
+    template<int order> class FirDirect : public FirBase<order>
+    {
+    public:
+        using FirBase<order>::xn_;
+        
+        FirDirect(const float hk[]) : FirBase<order>(hk) {}
+        
+        virtual float Execute(float xin)
+        {
+            xn_[0] = xin;
+
+            float acc = 0;
+            for (int k=0; k<=order; k++)
+                acc = acc + hm_[k]*xn_[k];
+
+            FirBase<order>::Move();
+
+            return acc;
+        }
+    };
+}
+#endif  // FIR_DIRECT_HPP
+