stdafx.h

在VC下实现FFT对信号滤波,包括实现低通和带通滤波,图形显示

//stdafx.h : include file for standard system include files,
//or project specific include files that are used frequently, but
//are changed infrequently

#if !defined(AFX_STDAFX_H__68A21CF4_71B3_41B0_A7FB_3971D6308874__INCLUDED_)
#define AFX_STDAFX_H__68A21CF4_71B3_41B0_A7FB_3971D6308874__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define VC_EXTRALEAN		// Exclude rarely-used stuff from Windows headers

#include <afxwin.h>         // MFC core and standard components
#include <afxext.h>         // MFC extensions
#include <afxdisp.h>        // MFC Automation classes
#include <afxdtctl.h>		// MFC support for Internet Explorer 4 Common Controls
#ifndef _AFX_NO_AFXCMN_SUPPORT
#include <afxcmn.h>			// MFC support for Windows Common Controls
#endif // _AFX_NO_AFXCMN_SUPPORT

#include<math.h>

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#define		N		1024
#define		PI		3.14159
#define 	TWO_PI	6.283185

void FourieTrans(float *pfReal,float *pfImag,unsigned int iNumOfSamples);
void IFourieTrans(float *pfReal,float *pfImag,unsigned int iNumOfSamples);

void GetReal(float *pfReal,float *pfRes,unsigned int iNumOfSamples);
void GetImag(float *pfReal,float *pfRes,unsigned int iNumOfSamples);

void GetResult(float *pfRealBuffer,float *pfImagBuffer,float *pfResBuffer,int iNum);

#endif // !defined(AFX_STDAFX_H__68A21CF4_71B3_41B0_A7FB_3971D6308874__INCLUDED_)