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Wavelet_denoising

于 2010-06-01 发布文件大小:221KB

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下载积分: 1 下载次数: 202

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小波变换的MATLAB源程序，使用语语音增强，去除噪声效果好，算法实现简单，清晰(MATLAB source wavelet transform, using language speech enhancement, noise removal effect, algorithm is simple and clear)

文件列表：

Wavelet_denoising
.................\COMPARE.M,1905,2003-10-13
.................\compile.m,2257,2002-11-12
.................\Contents.m,688,2002-11-18
.................\daubcqf.m,3918,2002-11-12
.................\denoise.m,9132,2002-11-12
.................\ex.m,1009,2004-03-01
.................\ex1.m,409,2004-03-01
.................\find_syll.m,1583,2003-10-13
.................\HardTh.m,3117,2002-11-12
.................\htm" target=_blank>INSTALL,827,2002-11-12
.................\INSTALL_PRECOMPILED.txt,415,2003-10-13
.................\late_noise.wav,163870,2004-03-01
.................\htm" target=_blank>LICENSE,2094,2002-11-18
.................\MAIN.M,1294,2004-02-29
.................\makesig.m,7236,2002-11-12
.................\mdwt.c,2799,2002-11-12
.................\mdwt.dll,8192,2004-03-02
.................\mdwt.m,4934,2002-11-12
.................\mdwt_r.c,5826,2002-11-12
.................\midwt.c,2749,2002-11-12
.................\midwt.dll,8704,2004-03-02
.................\midwt.m,3655,2002-11-12
.................\midwt_r.c,6250,2002-11-12
.................\mirdwt.c,3196,2002-11-12
.................\mirdwt.dll,9216,2004-03-02
.................\mirdwt.m,5210,2002-11-12
.................\mirdwt_r.c,7607,2002-11-12
.................\mrdwt.c,2901,2002-11-12
.................\mrdwt.dll,8704,2004-03-02
.................\mrdwt.m,5068,2002-11-12
.................\mrdwt_r.c,7253,2002-11-12
.................\normalize.m,176,2004-02-29
.................\htm" target=_blank>README,1082,2002-11-12
.................\setopt.m,2986,2002-11-12
.................\SoftTh.m,3276,2002-11-12
.................\two_axes.m,3689,2004-03-01
.................\Wavelet_Denoise.fig,67392,2004-11-11
.................\wavelet_denoise.m,12139,2004-11-11
.................\ZERO_PAD.M,215,2003-10-13

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wvd
这是一个轴承故障分解程序，给予小波变换，小波去噪，小波重构与EMD相结合，有时频谱，边际谱，功率谱(This is a to bearing failure decomposition program given wavelet transform, wavelet denoising wavelet reconstruction combined with EMD, sometimes the spectrum, marginal spectrum, power spectrum)

2012-11-26 15:15:09下载

积分：1
cyclostationary_toolbox
循环平稳信号是一类特殊的非平稳信号，其统计特征具有随时间呈周期变化的特点。旋转机械由于周期运行方式其振动信号具有循环平稳特性，因此利用循环平稳分析方法能够提取出在平稳假设下所不能得到的隐藏故障特征信息，为有效地分离和识别旋转机械早期微弱故障特征提供可能。(The cyclostationary signal is a special type of non-stationary signal whose statistical characteristics have a periodic variation with time. Due to the cyclical operation of the rotating machinery, the vibration signal has the characteristics of cyclostationary stability. Therefore, the cyclostationary analysis method can extract the hidden fault feature information that can not be obtained under the stationary assumption, which provides the possibility to effectively separate and identify the early weak fault features of the rotating machinery.)

2018-08-06 16:36:21下载

积分：1
DWT.m
离散小波变换的简单程序，适合初学者学习，附有通用函数。(Simple procedures discrete wavelet transform, suitable for beginners to learn, with common functions.)

2014-11-01 10:59:44下载

积分：1
PCMW2D_2
移动窗口二维相关光谱方法matlab的实现，完全是自己参照公式编的哦。。移动窗口二维相关光谱是一种新的二维相关分析方法,它将移动窗口的概念和二维相关分析方法有效地结合在了一起,利用移动窗口将庞大的光谱数据按矩阵分割成若干个便于操作的子矩阵,用二维相关光谱分别处理,将得到的结果综合分析,用以光谱变量和扰动变量为坐标的等高图表现出来,从中可以非常直观地观察出光谱强度在扰动变量方向上的变化,进而找出引起光谱强度突变的特征扰动点。(Moving window two-dimensional correlation spectroscopy method matlab realization, is entirely their own formulas reference the Oh. . Moving window two-dimensional correlation spectroscopy is a new two-dimensional correlation analysis method, it will move the window concept and two-dimensional correlation analysis method is effective to combine together, using the moving window at the huge spectral data matrix is divided into a number of easy to operate a sub-matrix, respectively, using two-dimensional correlation spectroscopy process, comprehensive analysis of the results obtained for the spectral variables, and disturbance variables manifested contour map coordinates, which can visually observe the spectral intensity of the direction of the disturbance variable The change, then find mutations characteristic spectral intensity caused disturbance point.)

2021-04-10 09:48:59下载

积分：1
wavelet-transform
对含噪声信号进行小波变换；对变换得到的小波系数进行某种处理，以去除其中包含的噪声；对处理后的小波系数进行小波逆变换，得到去噪后的信号(Containing noise signal wavelet transform the wavelet transform coefficients to a treatment to remove the noise contained therein the treated wavelet inverse wavelet transform coefficients to obtain a denoised signal)

2013-10-17 11:30:13下载

积分：1
synsq_toolbox_v1
同步压缩小波变换（synchrosqueezing wavelet transform）工具箱，用于信号处理时频分析(synchrosqueezing wavelet transform toolbox for time-frequency analysis in signal processing )

2012-04-23 15:51:10下载

积分：1
zishiying50hz
由仿真结果时域和频域图可以看出，工频50Hz干扰信号很好被滤除掉，说明所设计的自适应滤波器效果较好。(It can be seen by the domain and frequency domain simulation results in Figure, the frequency 50 Hz interference signals very well be eliminated, the design of the adaptive filter is better.)

2012-04-12 15:48:44下载

积分：1
Matlabwavelet
第二代小波变换，包含常见的小波基函数和算例(The second generation wavelet transform contains the common wavelet basis functions and examples)

2017-03-28 09:59:22下载

积分：1
FlowEstimationbyQWT
使用四元数小波变换图像流估计。是对“Coherent Multiscale Image Processing using Dual-Tree Quaternion Wavelets”的实现。代码很详细。(Use quaternion wavelet transform image flow estimation. Is the " Coherent Multiscale Image Processing using Dual-Tree Quaternion Wavelets" implementation. Code is very detailed.)

2021-04-27 21:08:44下载

积分：1
denoising
该程序主要是通过小波变换来实现对心音信号的去噪处理(The program is mainly achieved by wavelet denoising of heart sound signals)

2011-11-27 09:47:43下载

积分：1

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