基于小波包的瞬变信号的提取

Feature signal extraction based on wavelet packet

瞬变信号是低压系统中主要的干扰源之一,对系统的危害非常大。因此,必须对它进行提取和分类,了解它的特征。本文提出了基于小波包分解的提取特征信号的方法。采用该方法可以将干扰源的特征信号从检测信号中提取出来,从而对干扰源进行分类。实验证明了该方法的有效性。

Transient signal is one of the main electromagnetic interference source in low\|voltage system, and it is very dangerous to the system and the device. In order to suppress this over\|voltage, it must be distinguished and classified. This paper proposes a wavelet\|based technique to perform a feature extraction from the disturbance signal and a classification of the extraction features in order to identify the possible cause of the disturbance. And an example was given to show the validity of the proposed technique.