CQpub0 Mikami / Mbed 2 deprecated FFT_Sampling

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

fftReal.hpp

Committer:
CQpub0Mikami
Date:
2014-07-29
Revision:
1:655f6a72e47e
Parent:
0:c740f515e0b7

File content as of revision 1:655f6a72e47e:

//-------------------------------------------------------------------
// 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