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// FFT.h: interface for the CFFT class.
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//
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//////////////////////////////////////////////////////////////////////
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#if !defined(AFX_FFT_H__DD76BAB3_D55E_11D3_BFCD_00A00C3FB20E__INCLUDED_)
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#define AFX_FFT_H__DD76BAB3_D55E_11D3_BFCD_00A00C3FB20E__INCLUDED_
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#if _MSC_VER > 1000
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#pragma once
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#endif // _MSC_VER > 1000
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class AFX_EXT_CLASS CFilter
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{
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double xbegin,xend;
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public:
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CFilter();
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CFilter(double x1,double x2);
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void set(double x1,double x2);
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double bartly(double x);
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double hann(double x);
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double welch(double x);
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double window(double x);
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void draw();
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};
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class AFX_EXT_CLASS CFFT
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{
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public:
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CFFT();
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virtual ~CFFT();
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double *pr,*pi,*fr,*fi;
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int m_pow,num;
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double T;
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void FilterLog();
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void UnTransform();
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void Filter(CFFT &t);
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void Write(char *m_output,double dt,int state=1, const char *mode="wt");
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void ToDrawing(char *name,double w1,double w2, const char *mode="wt");
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void Transform(double *y,int n);
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int Create(double *m_pr,double *m_pi,int num);
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void Wavelet(double* y, int n);
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void UnWavelet(void);
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int GetPow(int num);
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void kcfwt(double* p, int n, int k, double* x);
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void kbfft(double* pr,double *pi,int n,int k,double* fr,double* fi,int l,int il);
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void Walsh(double *p,int n,double *x);
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void Walsh(double **a,int m,int n,int IsInverse);
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void FFT2D(double **ar,double **ai,int m,int n,int IsInverse);
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};
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#endif // !defined(AFX_FFT_H__DD76BAB3_D55E_11D3_BFCD_00A00C3FB20E__INCLUDED_)
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