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q4
说明: 提出了一种基于复解析小波变换的相位诊断齿轮故障的方法。复解析小波变换将Hilbert变换与小波分析紧密结合在一起,具有自适应分析能力。利用复解析小波变换得到齿轮振动信号的相位,其功率谱图上可提取调制边频带结构来识别故障模式。试验结果表明这种方法可有效应用于齿轮局部故障诊断中。(A new method using the phase based on complex analytical wavelet transform for fault diagnosis of gears was proposed. The phase of vibration signals of gears is got by complex analytical wavelet transform, which combines Hilbert transform with wavelet transform tightly and possesses adaptive analysis ability. By making spectrum analysis of the phase, the sideband structure in power spectrum can be protruded, and the fault pattern can be identified. Experimental results show that the proposed method is effective in local defect detection of gears.)
- 2012-02-02 15:25:22下载
- 积分:1
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fjxhfj
实现db6小波提升变换,对信号进行5层分解和重构。另外被屏蔽的部分为离散小波变换。(Enhance the realization of wavelet transform db6, 5 layers of signal decomposition and reconstruction. In addition to being part of shielding DWT.)
- 2009-06-08 16:58:58下载
- 积分:1
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小波变换源码
说明: 带有多种小波基的小波变换程序,可用于图象识别,信号突变检测。(with multiple small Porgy wavelet transform procedures can be used to image recognition, signal mutation detection.)
- 2006-01-04 14:14:32下载
- 积分:1
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jpegtool_matlab
关于利用离散余弦变换DCT的jpeg压缩的matlab源程序,简单实用,也有注释,很好读。(on the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes have a good time.)
- 2006-07-06 19:10:39下载
- 积分:1
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Shearletimagefusion
shearlet图像融合的源代码,速度很快,做毕业设计的可以参考(shearlet fusion source code, very fast, do graduate design can refer to)
- 2012-06-14 20:45:32下载
- 积分:1
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waveletanalysis
利用全局去噪和分层去噪实现信号的小波去噪,实现成功(Implementation of wavelet denoising, global denoising and level-dependent denoising)
- 2010-11-19 17:18:33下载
- 积分:1
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EMD_EEMD_VMD
说明: 可用于信号的EMD、EEMD、VMD分解,里面都加了自己的注释,通俗易懂(It can be used for signal EMD, EEMD, VMD decomposition. Because the algorithm adds its own annotations, it's easy to understand)
- 2017-07-08 09:20:13下载
- 积分:1
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wavelet
说明: matlab 小波分析源码 小波去噪 仿真分析(matlab source wavelet analysis wavelet denoising simulation analysis)
- 2008-11-21 22:31:07下载
- 积分:1
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wnn
说明: 这是一个用小波神经网络进行非线性函数逼近的例子,拟合效果非常好,保证能运行!有详细注释!我是参考《青岛海洋大学学报》 2001年第1期 一种基于BP算法学习的小波神经网络编写的,大家可以针对原文更好的理解我的程序!(This is a wavelet neural network with nonlinear function approximation example of fitting results is very good, guaranteed to run! Detailed Notes! I refer to Journal of Ocean University of Qingdao,2001 ,“a learning algorithm based on BP wavelet neural network ”, you will understand me better for program!)
- 2010-03-18 22:13:54下载
- 积分:1
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waveform275khz
275hz正弦波激励程序,用于模拟波的激发,适用于导波及其他方面,matlab程序(275hz sine wave incentive program for the simulation of wave excitation applied to guide spread to other aspects, matlab program)
- 2012-10-23 10:19:17下载
- 积分:1