登录
首页 » matlab » Machinery-Diagnosis

Machinery-Diagnosis

于 2012-01-02 发布 文件大小:132KB
0 67
下载积分: 1 下载次数: 11

代码说明:

  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. )

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • C16
    array stack 学习代码,帮助大家学习(array stack study code)
    2014-09-24 14:35:07下载
    积分:1
  • mass_uni_toolbox
    The Mass Univariate ERP Toolbox is a freely available set of MATLAB functions for performing mass univariate analyses of event-related potentials (ERPs), a noninvasive measure of neural activity popular in cognitive neuroscience. A mass univariate analysis is the analysis of a massive number of simultaneously measured dependent variables via the performance of univariate hypothesis tests (e.g., t-tests). Savvy corrections for multiple comparisons are applied to make spurious findings unlikely while still retaining a useful degree of statistical power. The advantages of mass univariate analyses include: reduced need for a priori defined time windows/regions of interest, discovery of unexpected effects even when a priori time windows/regions of interest are available, and greater spatial and temporal resolution than conventional mean time window analyses.
    2013-05-04 23:25:24下载
    积分:1
  • linpack_Z
    奇异值分解;奇异值分解;奇异值分解;奇异值分解;奇异值分解;(Singular Value Decomposition Singular Value Decomposition Singular Value Decomposition Singular Value Decomposition Singular Value Decomposition Singular Value Decomposition)
    2011-12-25 16:21:23下载
    积分:1
  • classify_nn
    This little package contains a Parzen Neural Network classifier that can classify data between N classes in D dimensions. The classifier is really fast and simple to learn
    2015-03-28 23:51:49下载
    积分:1
  • Particle-Swarm-Optimization
    粒子群算法的Matlab程序实现。不仅提供了源程序,还附带有详细的例子。对于初学者有极大的帮助。(PSO algorithm Matlab programming. Not only provides a source, also comes with detailed examples. There are a great help for beginners.)
    2014-09-03 10:56:11下载
    积分:1
  • ball
    matlab小球沿曲线运动的动画程序,作为一个学习matlab图形界面和动画制作的例程,对理解matlab相关编程很有帮助。(movement along the curve ball matlab animation program, as a learning matlab graphical interface and animation routines, useful for understanding the matlab-related programming.)
    2011-10-24 19:28:29下载
    积分:1
  • matlab
    This rar file contains some matlab programs and simulation results(generation of on off,isdn,video,data traffic)..
    2011-11-28 02:24:44下载
    积分:1
  • simpson
    Simpson’s Rule Intgral
    2014-01-05 22:57:42下载
    积分:1
  • PIDSystem
    This m-file is written in MATLAB. It instroduces a simple method to create a PID controller
    2010-09-09 15:45:06下载
    积分:1
  • containerforecast_stepwisefit
    使用stepwise方法选择因变量的基于AR模型的时间序列预测程序(This alogrithm can select the predictors using step-wise policy and forecast the time series based on AR model.)
    2012-04-19 18:57:08下载
    积分:1
  • 696522资源总数
  • 104027会员总数
  • 45今日下载