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dualtreewavelettransform

于 2006-06-13 发布文件大小:72KB

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代码说明：

双树复小波变换的源代码，可用于一维信号与二维图像的变换(double-tree Complex Wavelet transform the source code can be used in one-dimensional and two-dimensional image signal transformation)

文件列表：

双树复小波
..........\dtcwt_toolbox4_3
..........\................\antonini.mat
..........\................\cimage5.m
..........\................\coldfilt.m
..........\................\coldwtfilt.m
..........\................\colfilter.m
..........\................\colifilt.m
..........\................\coliwtfilt.m
..........\................\draw.m
..........\................\drawcirc.m
..........\................\dtwaveifm.m
..........\................\dtwaveifm2.m
..........\................\dtwavexfm.m
..........\................\dtwavexfm2.m
..........\................\legall.mat
..........\................\lenna.mat
..........\................\near_sym_a.mat
..........\................\near_sym_b.mat
..........\................\qshift_06.mat
..........\................\qshift_32.mat
..........\................\qshift_a.mat
..........\................\qshift_b.mat
..........\................\qshift_c.mat
..........\................\qshift_d.mat
..........\................\README.TXT
..........\................\reflect.m
..........\................\setfig.m
..........\................\SETTITLE.M
..........\................\shiftmovie.m
..........\................\shift_test_1D.m
..........\................\shift_test_2D.m
..........\................\waveifm.m
..........\................\waveifm2.m
..........\................\wavexfm.m
..........\................\wavexfm2.m

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wavelet_denoise
小波变换，小波去噪，包含多种去噪方法，模极大值，自适应，阈值去噪(Wavelet transform, wavelet denoising, including multiple Denoising, modulus maxima, adaptive thresholding)

2013-09-05 15:07:32下载

积分：1
zsb
用于折射波处理时的to、θ函数法求界面深度，浅层地震(Used for refraction wave in processing, θ function method to ask interface depth, shallow earthquake)

2020-12-20 10:59:10下载

积分：1
mallat
小波谱分析mallat算法经典程序希望对大家的学习有帮助(The small spectral analysis of the classical program of the mallat algorithms hope that everyone' s learning)

2012-06-29 14:12:46下载

积分：1
61
说明：提出了一种结合SVD的小波变换方法，对其在外弹道测量数据中的野值剔除进行了研究。对观测数据进行小波分解，将小波分解后的近似分量和细节分量组合实现相空间重构，作为SVD方法的输入观测矩阵，根据奇异熵增量准则，对奇异值进行筛选，根据SVD逆变换重构原信号。这一方法克服了Hankel矩阵相空间构建方法数据端点失真问题。以小波分解后分量重构的相空间可以满足正交性，进一步提高了SVD进行数据降噪和野值检测的精度。仿真数据和试验数据处理结果证明了这一方法的有效性。(Proposed a method of combining the SVD wavelet transform its outer ballistic measurement data in excluding outliers were studied. Observational data on wavelet decomposition, wavelet decomposition of the approximate combined component and detail component to achieve the phase space reconstruction, as the input observation matrix SVD method, based on singular entropy increment standards, singular value filter, according to the inverse transform heavy SVD structure of the original signal. This approach overcomes the Hankel matrix phase space construction method data endpoint distortion. Wavelet decomposition component of reconstruction phase space satisfy orthogonality, to further improve the SVD for data noise reduction and outlier detection accuracy. Simulation data and experimental data processing results prove the effectiveness of this approach.)

2013-06-02 11:10:21下载

积分：1
wavelet
利用小波分析原理对某信号进行分解与重构，并可提取指定层数上的高、低频信号。(A signal is decomposed and reconstructed by using wavelet analysis principle, and high and low frequency signals can be extracted from the specified number of layers.)

2018-06-09 20:37:34下载

积分：1
3900001
本文研究的是利用奇异性指数实现对设备状态监视和故障预警功能。首先用LabVIEW 采集传感器电信号，然后对采集到的电信号进行小波变换得到信号包络奇异点的奇异性指数，即设备运行状态的特征值(In this research project, we use LabVIEW to do wavelet-transformation to the signal collected by sensors in order to get singularity index from the singular points of the particular signal’s envelope. Through comparing this eigenvalue to the figures in a standard database, we can know the functional status of the instruments. Not only the diagnoses are continuously displayed, but alarms about signs of dysfunction will also be raised in a proper way. In other words, both the supervision of the instrument and warning of dysfunction can be achieved)

2012-01-31 16:35:56下载

积分：1
zcxb
基于小波变换的包络分析用于轴承故障诊断的源代码(Bearing envelope analysis)

2012-07-20 11:14:18下载

积分：1
watermarking
使用了Arnold置乱算法，实现了基于小波变换的数字图像水印(Arnold used the scrambling algorithm based on wavelet transform of digital image watermarking)

2009-06-05 10:38:49下载

积分：1
YuPing_IP99_1
Multiscale Curvature-Based Shape Representation Using B-Spline Wavelets

2009-05-15 21:30:27下载

积分：1
xiaobobianhuanjiancehuibo
本程序是在labview中利用小波变换理论检测回波(This procedure is in the use of wavelet transform theory labview echo detection)

2011-09-04 11:12:47下载

积分：1

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