CQpub0 Mikami
The experiment using this program is introduced on "Interface" No.4, 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4月号で紹介しています．
Dependencies: DSProcessingIO mbed
Diff: fftReal.hpp
- Revision:
- 0:c740f515e0b7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/fftReal.hpp Tue Jul 15 10:14:37 2014 +0000
@@ -0,0 +1,37 @@
+//-------------------------------------------------------------------
+// FFT class for real data (Header)
+// Copyright (c) 2014 MIKAMI, Naoki, 2014/06/29
+//-------------------------------------------------------------------
+
+#ifndef FFT_REAL_HPP
+#define FFT_REAL_HPP
+
+#include "mbed.h"
+#include <complex> // requisite
+
+namespace Mikami
+{
+ typedef complex<float> Complex; // define "Complex"
+
+ class FftReal
+ {
+ private:
+ const int N_FFT_;
+ Complex* wTable_; // twiddle factor
+ uint16_t* bTable_; // for bit reversal
+ Complex* u_; // working area
+
+ FftReal(const FftReal& );
+ FftReal& operator=(const FftReal& );
+
+ public:
+ // Constructor
+ explicit FftReal(uint16_t n);
+ // Destructor
+ ~FftReal();
+ // Execute FFT
+ void Execute(const float x[], Complex y[]);
+ };
+}
+#endif // FFT_REAL_HPP
+