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資源簡介

一維信號的小波變換算法。處理聲音等一維信號,小波分解和重構,適合工程實踐項目中使用

資源截圖

代碼片段和文件信息

//?CWT.cpp:?implementation?of?the?CCWT?class.
//
//////////////////////////////////////////////////////////////////////

#include?“stdafx.h“
#include?“WinCWT.h“
#include?“CWT.h“
#include?“math.h“

#define?M_PI????????3.14159265358979323846??/*?pi?*/?

BOOL?GetIntMexhCoeff(double?*wfltr);

BOOL?cwt(double?*wfltrdouble?CurScaledouble?*pIn?int?LengthIn?double?*pOut)
{
if?(pIn==NULL)?return?FALSE;
if?(pOut==NULL)?return?FALSE;
if?(LengthIn<=0)?return?FALSE;
if?(CurScale<1e-5)?{
AfxMessageBox(“尺度太小“);
return?FALSE;
}
if?(CurScale>LengthIn)?{
AfxMessageBox(“尺度太大“);
return?FALSE;
}
//////////////////////////////////////////////////////////////////////////
double?CurScale_SIG?=?0;
double*?pTemp?=?new?double[LengthIn];
double?tempValue=0;
int?i=0;

int?NumFilter?=?int(CurScale*16)+1;
tempValue?=?sqrt(CurScale);
double?*newFilter=new?double[NumFilter];
int?*indexWAV=new?int[NumFilter];
for?(i=0;i indexWAV[i]=int(i*(64.0/CurScale)-1);
if?(indexWAV[i]<0)?indexWAV[i]=0;
newFilter[NumFilter-i-1]=wfltr[indexWAV[i]];//賦值并反褶
}
Convolve(pInLengthInnewFilterNumFilterpTemp);
Diff(tempValuepTempLengthInpOut);
/*
for?(int?SS=0;SS CurScale?=?pScale[SS];
tempValue?=?sqrt(CurScale);
Convolve(pIn?LengthInwfltr1024pTemp);
Diff(tempValuepTempLengthInpOut);
}
*/
delete[]?newFilter;
delete[]?indexWAV;
return?TRUE;
}
BOOL?GetIntMexhCoeff(double?*wfltr)
{
if(wfltr==NULL)?return?FALSE;
int?NN=1024;
double?LB?=?-8UB?=?8;
double?step?=?16.0/1023;

double?sqrt3=sqrt(3);
double?out1[1024]={0};
double?out2[1024]={0};
double?Coeff[1024]={0};
for?(int?i=0;i<1024;i++)?{
out2[i]=LB+i*step;
out1[i]=out2[i]*out2[i];
Coeff[i]=2/(sqrt3*pow(M_PI0.25))*exp(-1*out1[i]/2)*(1-out1[i]);
}

for?(i=0;i<1024;i++)?{
if((wfltr+i)==NULL)?return?FALSE;
wfltr[i]=0;
for?(int?j=0;j wfltr[i]+=Coeff[j]*step;
}
}
return?TRUE;
}
void?Convolve(double?*pInint?lengthdouble?*pFilterint?lenFilterdouble?*pOut)
{
double?*pTemp=new?double[length+lenFilter-1];
memcpy(pTemp+lenFilter-1pIn(length)*sizeof(double));
memset(pTemp0(lenFilter-1)*sizeof(double));
pIn?=?pTemp;

double?sum=0;
for(int?i=lenFilter-1;i {
sum=0;
for(int?j=0;j {
sum+=pIn[i-j]*pFilter[j];?
}
pOut[i-lenFilter+1]=sum;?
}
delete[]?pTemp;
}
void?Diff(double?fk?double?*pInint?lengthdouble?*pOut)
{
for?(int?i=0;i pOut[i]=fk*(pIn[i+1]-pIn[i]);
}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????480341??2007-06-04?17:35??WinCWT\3.0-100-1sound.txt

?????文件???????2641??2007-06-04?17:29??WinCWT\CWT.cpp

?????文件????????673??2007-06-04?17:26??WinCWT\CWT.h

?????文件?????480341??2007-06-04?17:35??WinCWT\Debug\3.0-100-1sound.txt

?????文件???????8229??2007-06-04?17:29??WinCWT\Debug\CWT.obj

?????文件??????????0??2007-06-04?17:29??WinCWT\Debug\CWT.sbr

?????文件??????61472??2007-06-05?09:29??WinCWT\Debug\DispPanel.obj

?????文件??????????0??2007-06-05?09:29??WinCWT\Debug\DispPanel.sbr

?????文件???????9759??2007-06-05?09:29??WinCWT\Debug\FFT.obj

?????文件??????????0??2007-06-05?09:29??WinCWT\Debug\FFT.sbr

?????文件??????30049??2006-03-07?20:33??WinCWT\Debug\StaticPlotPanel.obj

?????文件??????????0??2006-03-07?20:33??WinCWT\Debug\StaticPlotPanel.sbr

?????文件?????105889??2007-06-04?15:15??WinCWT\Debug\StdAfx.obj

?????文件????1384143??2007-06-04?15:15??WinCWT\Debug\StdAfx.sbr

?????文件??????10295??2007-06-04?15:15??WinCWT\Debug\ThresSelDlg.obj

?????文件??????????0??2007-06-04?15:16??WinCWT\Debug\ThresSelDlg.sbr

?????文件?????222208??2007-06-05?09:29??WinCWT\Debug\vc60.idb

?????文件?????372736??2007-06-05?09:29??WinCWT\Debug\vc60.pdb

?????文件???????9075??2007-06-04?14:38??WinCWT\Debug\wfltr.obj

?????文件???????8251??2007-06-04?14:38??WinCWT\Debug\wfltr.sbr

?????文件????3744768??2007-06-05?09:29??WinCWT\Debug\WinCWT.bsc

?????文件?????147519??2007-06-05?09:29??WinCWT\Debug\WinCWT.exe

?????文件?????350172??2007-06-05?09:29??WinCWT\Debug\WinCWT.ilk

?????文件??????15423??2007-06-04?17:22??WinCWT\Debug\WinCWT.obj

?????文件?????533504??2007-06-05?09:29??WinCWT\Debug\WinCWT.pdb

?????文件???????2832??2007-06-04?17:09??WinCWT\Debug\WinCWT.res

?????文件??????????0??2007-06-04?17:22??WinCWT\Debug\WinCWT.sbr

?????文件??????35716??2007-06-04?17:26??WinCWT\Debug\WinCWTDlg.obj

?????文件??????????0??2007-06-04?17:26??WinCWT\Debug\WinCWTDlg.sbr

?????文件????3744768??2006-07-24?19:47??WinCWT\Debug\WinDWT.bsc

............此處省略50個文件信息

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