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dual-tree
首先将非平稳的故障振动信号进行双树复小波包分解，得
到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量
进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实
现了故障特征信息的提取。(In view of the above situation, a new fault diagnosis
method is proposed based on dual-tree complex wavelet packet transform and threshold de-noising. Firstly, the
non-stationary fault signal is decomposed into several different frequency band components through dual-tree
complex wavelet packet decomposition. Secondly, Kurtosis and the cross-correlation coefficient of each
component are obtained and compared. Due to the kurtosis reflecting the signal variations, if the kurtosis value is
bigger, the degree of the change of signal is bigger too. The correlation coefficient can reflect the proximity
between the component and the original signal at the same time, the correlation coefficient is bigger, the more
similar with the original signal. Finally, the components that have a bigger value are chosen to be de-noised by a
soft threshold and reconstructed by dual-tree complex wavelet packet transform. The noise interference was
eliminated effectively, and the effective si)
- 2014-05-28 17:02:14下载
- 积分：1
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surfacerendering
这是vtk结合MFC在一个对话框内进行面绘的代码，读入图像的格式为DICOM(vtk This is a combination of the MFC dialog within the code face painting, Reading into the image of the DICOM format)
- 2021-03-08 14:09:28下载
- 积分：1
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uploadpic
关于上传 图片的代码 上传图片的代码(关于上传 图片的代码 上传图片的代码)
- 2013-07-10 11:28:39下载
- 积分：1
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Level.Set.Methods.And.Dynamic.Implicit.Surfaces
Level Set Methods and Dynamic Implicit Surfaces - Ronald Fedkiw(Level Set Methods and Dynamic Implicit Surfaces- Ronald Fedkiw)
- 2021-02-16 12:59:47下载
- 积分：1
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RK龙格库塔计算微分方程组
使用4阶龙格库塔定理计算一阶微分方程组，方程组有3个方程(RK calculation of differential equations)
- 2018-04-13 13:01:19下载
- 积分：1
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src
说明： 基于内容的图片搜索，基于java实现，图片搜索及图像相似度计算(Content-based image retrieval)
- 2020-06-16 15:00:02下载
- 积分：1
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CEClassical
典型的LSB水印嵌入和提取算法，它是一个基本的matlab程序，可以帮助初学者入门
(typical LSB embedding and extraction algorithm, which is a basic Matlab procedures, Portal can help beginners)
- 2007-05-24 16:39:27下载
- 积分：1
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codk__list__shaking
BTC的基本方法,并且编程实现,显示,观察编码后的图像,推荐给大家(BTC basic method and programming implementation, display, observe the encoded image, recommend to everyone)
- 2017-07-31 05:03:44下载
- 积分：1
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箱型图
说明： 一个画箱型图的代码，按照里面的数据格式将数据添加进去就能画箱型图，体量小，但很实用(A drawing box diagram code, according to the data format will be able to add data to draw box diagram, small volume, but very practical)
- 2021-02-08 09:44:14下载
- 积分：1
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attackofwatermarking
说明： 通过程序介绍的一些算法,可以对信息隐藏技术实施攻击,特别是水印技术.(procedures introduced by the algorithm, the information can be hidden to attack technology, in particular watermarking technology.)
- 2006-04-18 11:58:33下载
- 积分：1
