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Machinery-Diagnosis
子波分析是一种日益获得广泛应用的信号处理新技
术, 具有良好的时-频局部化特性, 尤其适用于时变及非平
稳信号。本文简述了子波函数与子波展开的基本概念, 利用
展缩子波和调和子波将信号及信号均方值进行时-频两维
分布。最后采用了三种子波分析方法对轴承故障进行诊断,
即使对现有各种方法尚难以诊断的滚动体故障, 也能获得
满意的结果, 说明子波分析的确为机械故障诊断提供了强
有力的分析手段。(Wavelet a nalysis, as a new technique of signal processing , possesses ex cellent characteristic
of time-frequency localization and is suitable for analyzing
the time-var ying or transient signals. In this paper , the basic concepts of wavelet function and
wavelet expansion are briefly introduced. The time frequency
distribution of signal and its energy are obtained by decomposition via dilating wavelet and harmanic wavelet. )
- 2012-01-02 03:56:37下载
- 积分:1
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boost_PO
说明: MATLAB SIMULINK仿真程序,基于BOOST电路的扰动观察法实现(MATLAB SIMULINK.Realization of disturbance observation method based on boost circuit)
- 2021-04-18 09:38:52下载
- 积分:1
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OFDMcode
采用Matlab仿真的OFDM链路代码,可以运行并生成性能曲线(maltab code for OFDM communication system,and performance is good)
- 2012-05-06 10:40:58下载
- 积分:1
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mlcentra
Climate Control System
- 2010-12-03 20:52:35下载
- 积分:1
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Matlabfengzhen
二阶电路的Matlab仿真,该文给出二阶电路仿真实例, 不仅给出计算结果, 并绘出仿真曲线.(Matlab simulation of second order circuit, the article gives examples of second-order circuit simulation, not only gives the results, and draw the simulation curve.)
- 2010-05-27 18:56:19下载
- 积分:1
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matlab-primer
MATLAB编程-菜鸟入门(清晰版),电子书,适合初学者(matlab primer,ebook)
- 2012-05-15 16:29:02下载
- 积分:1
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CBIR-Color-His
This file contains a summary of what you will find in each of the files that
make up your Graphic2 application.
- 2012-05-29 18:05:06下载
- 积分:1
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512wei_zheng_yu_xian_biao
关于512位的正余弦表,内有两个数组,分别存放已经算好的正余弦数(About 512 positive cosine table with two arrays were stored has been considered a good number of sine and cosine)
- 2012-09-18 16:54:37下载
- 积分:1
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802.16
the whole physical layer of wimax 802.16
- 2009-05-05 21:45:26下载
- 积分:1
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calcCircle
用于圆的拟和,很好的程序,真的不错,好的程序,好好的(Fitting for the round, a good program, really good, good program, good)
- 2010-11-20 19:40:29下载
- 积分:1