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wavelet

于 2011-04-15 发布 文件大小:60KB
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代码说明:

说明:  用于求取小波包变换后小波系数的熵值,对初学者很有帮助(Used to obtain the wavelet coefficients after wavelet packet entropy, helpful for beginners)

文件列表:

wavelet

.......\waveletentropy.m,899,2011-04-15
.......\小波.txt,843,2009-03-16

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    实现连续小波变换,对信号进行频谱分析。精度很高(continuous wavelet transform)
    2015-10-16 21:58:51下载
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  • xianbofilter
    设计陷波滤波器,建立原始信号,对其采样,将采样信号通过滤波器进行滤波(Design trapped wave filter, establish the original signal, the sampling, will sampling signal through the filter to filter)
    2012-05-13 10:08:42下载
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  • xiaobobao
    利用小波包变换对信号进行分解及重构,对于初学者是一个很好的学习材料。(Wavelet packet transform signal decomposition and reconstruction, is a good learning materials for beginners.)
    2013-03-04 09:37:52下载
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    2018-03-05 14:32:13下载
    积分:1
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    在labview中进行小波分析程序设计,内容最全、最好的文件,参照本文件可以直接一步步编写小波分析程序,适合初学者。(The labview wavelet analysis program design, the most comprehensive, best file reference in this document can step directly Step preparation of a wavelet analysis program for beginners.)
    2012-02-08 09:10:43下载
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    Fast wavelet transforms and numerical algorithms 1
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    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.)
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