小波包分析在故障特征提取与识别中的应用

The application of wavelet packet analysis in the fault feature extraction and recognition

对观测信号进行小波包分析,从而提取故障信息,建立能够表征系统特征的状态向量,用模式识别的方法对系统进行故障检测与定位,实现系统的故障诊断。

Using wavelet packet to analysis the observed signal,so as to extract fault information,and established the state vector to represent the characteristics of the system.With the method of pattern recognition to ascertain system fault detection and localization,and accomplished the system fault diagnosis.