Search - db4 - CodeBus

[matlab] 3

Description: 采用db4小波实现一维信号的分解与重建：-Achieved using one-dimensional signal db4 wavelet decomposition and reconstruction:
Platform: | Size: 1024 | Author: 局外人 | Hits:

[Special Effects] 4

Description: 采用db4小波实现二维图像的分解与重建(mallat算法)-Two-dimensional images using db4 wavelet decomposition and reconstruction (mallat algorithm)
Platform: | Size: 1024 | Author: 局外人 | Hits:

[matlab] 7

Description: 采用db4小波实现一维信号的分解与重建(à trous算法)：-Achieved using one-dimensional signal db4 wavelet decomposition and reconstruction (trous algorithm):
Platform: | Size: 1024 | Author: 局外人 | Hits:

[Special Effects] 8

Description: 采用db4小波实现二维图像的分解与重建：(à trous算法)-Two-dimensional images using db4 wavelet decomposition and reconstruction: (trous algorithm)
Platform: | Size: 1024 | Author: 局外人 | Hits:

Description: 小波降噪首先对信号进行小波分解，一般地，噪声信号多包含在具有较高频率的细节中，从而，可利用门限阀值等形式对所分解的小波系数进行出来，然后对信号进行小波重构即可达到对信号降噪的木的。对信号降噪实质上是一直信号中的无庸部分，恢复信号中有用部分的过程。 -Wavelet denoising first signal wavelet decomposition, in general, the noise signal contained in a more details of a high frequency, thus, to use other forms of threshold threshold decomposed wavelet coefficients out, and then the signal wavelet weight Structure of the signal noise reduction can be achieved by wood. The signal noise in the signal is essentially beyond been part of the useful part of the signal recovery process.
Platform: | Size: 3072 | Author: gaodonghai | Hits:

[Software Engineering] db4

Description: 编写存储过程访问数据库,熟悉使用存储过程来进行数据库应用程序的设计-Write stored procedures to access the database, familiar with the use of stored procedures for database application design
Platform: | Size: 32768 | Author: 肖英英 | Hits:

[Wavelet] wa

Description: 小波消噪，采用“db4”母小波函数进行三层分解-Wavelet de-noising, using " db4" mother wavelet function triple decomposition
Platform: | Size: 1024 | Author: 里昂 | Hits:

[AI-NN-PR] db4

Description: perform 2-D wavelet transform, daub4 wavelet
Platform: | Size: 2048 | Author: sky | Hits:

[Other Databases] db4

Description: access office data base file
Platform: | Size: 5120 | Author: raid | Hits:

[Special Effects] wavelet_edgedetection

Description: 利用db4正交小波基对图像进行一层小波包分解后，得到的近似图像比原来的图像更次更加分明，适合初学者-Orthogonal wavelets db4 use the image layer wavelet packet decomposition, approximate image obtained more times more clearly than the original image, suitable for beginners
Platform: | Size: 3072 | Author: 刘成霞 | Hits:

[Other] east_5s

Description: 本文件调用matlab小波分析包，可以实现db4等小波函数类型的分解和重置，并进行原始信号和重构信号的误差比较！-This document calling matlab wavelet analysis package, you can achieve db4 wavelet function, such as the type of decomposition and reset and reconstruct the original signal and the error signal comparison!
Platform: | Size: 2048 | Author: 朱济帅 | Hits:

[Other] XIAOBO

Description: 关于db4小波处理的一个简单程序，可以拿来简单练习参考参考-simple matlab test of xiaobo,it is expected hopleful
Platform: | Size: 5120 | Author: 梁惠 | Hits:

[Other] 111

Description: 用db2、db4小波分解奇异点检测，其中用wnoise产生测试信号-use db2 and db4 detect strange point and wnoise was used to produce test signal
Platform: | Size: 1024 | Author: 蓝风忧郁 | Hits:

[VC/MFC] fer1

Description: $regfile = M8DEF.dat internal crystal 8000000 Config Lcdpin = Pin , Db4 = Portc.1 , Db5 = Portc.2 , Db6 = Portc.3 , Db7 = _ Portc.4 , E = Portd.2 , Rs = Portd.3 Config Lcd = 16 * 2 Config Timer1 = Counter , Edge = Rising Ddrb.1 = 0 : Portb.1 = 1 PULL UP RESISTOR ACTIVATED Config Timer0 = Timer , Prescale = 1024 Enable Counter1 Enable Interrupts Enable Timer0 Enable Timer1 On Ovf1 Pulsecount On Ovf0 Ovf0occures Dim A As Long , I As Long , B As Byte B = 0 Cls Start Timer0 Do Loop End end program Ovf0occures: Incr I If I > 30 Then Stop Timer0 Cls : Home A = B * 65536 A = A + Counter1 Lcd FREQ IS : A HZ B = 0 I = 0 : Counter1 = 0 Start Timer0 End If Return Pulsecount: Incr B Counter1 = 0 Return-$regfile = M8DEF.dat internal crystal 8000000 Config Lcdpin = Pin , Db4 = Portc.1 , Db5 = Portc.2 , Db6 = Portc.3 , Db7 = _ Portc.4 , E = Portd.2 , Rs = Portd.3 Config Lcd = 16 * 2 Config Timer1 = Counter , Edge = Rising Ddrb.1 = 0 : Portb.1 = 1 PULL UP RESISTOR ACTIVATED Config Timer0 = Timer , Prescale = 1024 Enable Counter1 Enable Interrupts Enable Timer0 Enable Timer1 On Ovf1 Pulsecount On Ovf0 Ovf0occures Dim A As Long , I As Long , B As Byte B = 0 Cls Start Timer0 Do Loop End end program Ovf0occures: Incr I If I > 30 Then Stop Timer0 Cls : Home A = B * 65536 A = A + Counter1 Lcd FREQ IS : A HZ B = 0 I = 0 : Counter1 = 0 Start Timer0 End If Return Pulsecount: Incr B Counter1 = 0 Return
Platform: | Size: 9216 | Author: mojgan | Hits:

[Wavelet] xiaoboPc

Description: 小波变换已应用到工程的各个方面，但一般只是应用MATLAB的小波工具包来编程，有时需要自己编程实现，故这里给出了DB4小波变换的C实现-Wavelet transform has been applied to all aspects of the project, but generally only apply MATLAB wavelet toolkit for programming, sometimes need their own programming, so here is a DB4 wavelet transform C implementation
Platform: | Size: 381952 | Author: mihuanlianqu | Hits:

[DSP program] db4xiaobojiangzao

Description: 采用db4小波对是与信号进行降噪处理，实际效果良好-Using DB4 wavelet denoising is processing and signal, the actual effect is good
Platform: | Size: 300032 | Author: 李宏宇 | Hits:

[Software Engineering] cc

Description: 在小波的分解过程中，每一次的小波分解得到的近似信号会比上一层次的信号更加光滑，而被抑制的细节系数则存在于每一层中。所以可以将一个含噪信号进行第5层分解，并有选择的抑制部分细节系数就可以达到信号降噪的目的。试验中采用‘db4’小波对信号进行分解。-In the process of wavelet decomposition, every wavelet decomposition to get the approximate signals will be more smooth than on a level of signal, and inhibited detail coefficients exist in each layer. So a noise signal can be 5 layers of decomposition, and selectively inhibit some detail coefficients can achieve the goal of signal noise reduction. Trials of the signal by db3 wavelet decomposition.
Platform: | Size: 1024 | Author: 德尼 | Hits:

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