fft.h

数字信号处理中卷积运算中的重叠保留法,可以很好地进行信号的卷积运算

#ifndef _FFT_H_
#define _FFT_H_
#include<string.h>
class Sigproc{
private:
	
	float *am;
	int   signalN;
public:
	Sigproc(float *signal1,float *signal2,int N);
	~Sigproc();
	void bitrev();
	void fft(int l);
	void signalM();
	void show();
	float *signalX;
	float *signalY;
};
class complex{
public:
	double real;
	double imag;
public:
	complex(double r=0.0,double i=0.0);
	friend complex operator*(complex a,complex b);
};
#endif