基于正交小波变换的动态系统的故障检测

Fault Diagnosis of Dynamic Systems Based on Orthogonal Wavelet Transformations

利用正交小波变换在时—频域均有良好局部化的品质,提出了一种对动态系统故障诊断中非平稳信号进行分析与处理的方法。仿真结果表明,该方法不仅使测试结果更加精确,而且便于进行快速的故障诊断。

In virtue of well localization performance in time-frequency domain of orthogonal wavelet transformations, an analysis method of non-steady state signals in fault diagnosis of dynamic systems is introduced. Simulation resuhs shown that the methodology made not only test results more precise, but fault diagnosis more expedient.