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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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matlab--fangbo
方波信号生成程序,可对方波信号的复制和频率进行设置,输出信号准确稳定(to creat a square wave )
- 2017-04-20 17:11:38下载
- 积分:1
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PMSM_HF
基于高频注入法的永磁同步电机无速度传感器控制(Sensorless control of permanent magnet synchronous motor based on high frequency injection)
- 2021-03-05 16:39:31下载
- 积分:1
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4进制PSK仿真子程序
说明: 4进制PSK仿真子程序,子程序计算4进制PSK调制的误码率(four band PSK simulation subroutine, the four band calculation subroutine PSK modulation BER)
- 2005-11-16 10:17:28下载
- 积分:1
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simulink2
有关 matlab 的行业的书籍 可以做下参考(Books about matlab industry can make a reference)
- 2013-09-21 19:45:43下载
- 积分:1
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matlab-PLS-TOOBOX
matlab 工具箱 很好的工具箱,只要能找到相应的程序就可以了(matlab pls strong helpful good well it is so good as to use this matlab pls)
- 2010-09-11 10:48:00下载
- 积分:1
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action
how to decide the priority of broadcast, unicast transmission and receptioin?
- 2010-11-07 02:23:46下载
- 积分:1
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cpm
cpm连续相位调制系统的matlab仿真程序,全面。(cpm continuous phase modulation system matlab simulation program, comprehensive.)
- 2020-09-29 18:57:44下载
- 积分:1
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susanedgedetection
说明: 基于susan算法的图像边缘检测,内有主函数,和2个子函数,可出图。(Susan algorithm based on edge detection, within the main function, and 2 sub-functions, can be a map.)
- 2011-04-11 16:38:25下载
- 积分:1
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Slanguage
老师给的中文版S函数编写规则,中文哦,很有用的s资料(Teachers to the Chinese version of the S function written rules, Chinese Oh, s very useful information)
- 2010-05-14 23:09:33下载
- 积分:1