基于小波变换的信号突变检测方法

Wavelet-transformation-based Checking Method for the Sudden Changes in Signals

奇异点为信号中常见的现象，也往往是信号所反映的物理过程的重点，通过检测奇异点，能更好把握物理过程中的突变和非常规但影响很大的因素，对设备进行监控和维护时，分析信号的突变点，能确定可能的故障因素。小波变换提供了一种检测奇异点的有效方法。

：The derivation of gaussion function can be used as mother-wavelet．It provides some efficient methods to check the singularity． This paper discusses the principles of checking interrupting and jumping points and impulse signals with wavelet-transform and gives some instances．