testfilterdlg.h

主要功能是任意波段的滤波计算

// TestFilterDlg.h : header file
//

#if !defined(AFX_TESTFILTERDLG_H__AD9BB8F3_9092_4DDC_A179_F28AC9FE6F34__INCLUDED_)
#define AFX_TESTFILTERDLG_H__AD9BB8F3_9092_4DDC_A179_F28AC9FE6F34__INCLUDED_

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

#define		PI	3.14159

/////////////////////////////////////////////////////////////////////////////
// CTestFilterDlg dialog

class CTestFilterDlg : public CDialog
{
// Construction
public:
	CTestFilterDlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	//{{AFX_DATA(CTestFilterDlg)
	enum { IDD = IDD_TESTFILTER_DIALOG };
	float	m_fFreqLow;
	float	m_fFreqHigh;
	float	m_fScope;
	BOOL	m_bFilter;
	float	m_fDT;
	float	m_fFsamp;
	float	m_fPower;
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CTestFilterDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	//{{AFX_MSG(CTestFilterDlg)
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	afx_msg void OnBtnDrawwave();
	afx_msg void OnBtnGenwave();
	afx_msg void OnBtnFft();
	afx_msg void OnBtnReaddata();
	afx_msg void OnBtnJifen();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
public:
	float		fAccWave[1024];
	float		fVocWave[1024];
	float		fFreqData[1024];
	/// 获得  （去掉直流分量之后） 电压波形 的 均方根
	void		GetWavePower(float	Wave[],  int ptNum, float  * pfPower);

	// 绘制波形数据
//	void	DrawWaveData(CRect waveRect, FLOAT Wave[], INT ptNum, FLOAT fWaveMax);
	// 绘制波形数据
	void	DrawWaveData( CRect waveRect, CRect FreqRect,FLOAT Wave[],FLOAT Freq[] , INT ptNum, FLOAT fWaveMax,FLOAT fFreqMax);
	// 设置在波形的范围内
	float	 SetWaveDataInScope(FLOAT fValue, FLOAT fMax);
	// 绘制频谱数据
//	VOID	DrawFreqData(  CRect FreqRect, FLOAT Freq[], INT ptNum, FLOAT fFreqMax);
	// 设置在频谱的范围内
	FLOAT	SetFreqDataInScope(FLOAT fValue, FLOAT fMax);

	// 应用FFT计算
	VOID	AppFFT(INT ptNum , float  Wave[]);
	//  快速傅立叶变换函数
	VOID	kkfft(float pr[],float pi[],int n,int k,float fr[],float fi[],int l,int il);

	// 字符转换为整型
	INT CharToINT(TCHAR c0, TCHAR c1, TCHAR c2,
				  TCHAR c3, TCHAR c4, TCHAR c5);

};

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

#endif // !defined(AFX_TESTFILTERDLG_H__AD9BB8F3_9092_4DDC_A179_F28AC9FE6F34__INCLUDED_)