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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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h
说明: 该程序主要处理大数吃小数的方法处理,反正你试一试就知道怎么样了。(The program mainly deal with large numbers fractional approach to eating, anyway you try to know how the.)
- 2010-09-11 23:53:23下载
- 积分:1
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GA
说明: Genetic Algorithm for two variable
- 2009-05-22 16:44:24下载
- 积分:1
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Untitled
灰色模型源代码 可直接运行改程序进行预测分析(Gray model source code can be run directly)
- 2013-03-21 09:27:22下载
- 积分:1
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Capture
converting colors from rgb to hsi in matlab
- 2013-10-22 01:30:14下载
- 积分:1
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OFDM-MATLAB-仿真程序
matlab实现对ofdm系统的整体仿真,适合初学ofdm的人员(Matlab implementation of the overall simulation of the OFDM system, suitable for the beginners of OFDM)
- 2017-12-04 08:12:59下载
- 积分:1
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ISS
Code source of Model AR+Burg spectrum for detect inter scatterer spacing used Ultrasound of liver
- 2010-12-29 06:36:22下载
- 积分:1
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makeYbus
说明: 潮流计算,电力系统潮流计算。从已知节点数据计算牛顿潮流(Power flow, power system flow calculation. Newton calculated from the known trend of the data node)
- 2021-03-06 21:29:31下载
- 积分:1
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UKF
无迹卡尔曼滤波代码,matalb程序代码(Without the unscented Kalman filter code, matalb, program code)
- 2020-12-13 22:39:15下载
- 积分:1
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109_stastny
Feature Extraction from EEG
- 2013-12-29 02:10:36下载
- 积分:1