郑威,庄剑,刘金权.基于小波包和S变换的电火花机床用电负荷信号处理[J].电测与仪表,2016,53(15):. Zheng Wei,Zhuang Jian,Liu Jinquan.Signal processing on the electricity load of EDM based on wavelet packet and S-transform[J].Electrical Measurement & Instrumentation,2016,53(15):.
基于小波包和S变换的电火花机床用电负荷信号处理
Signal processing on the electricity load of EDM based on wavelet packet and S-transform
ABSTRACT:The load of electro discharge machining (EDM) is one of typical pulsed power loads, in order to study the de-noise processing of the electricity load characteristics of EDM by choosing various wavelet basis function and threshold value ,and the paper proposes a new approach to detect and classify power quality disturbances by combining with the S-transform. The method can improve the accuracy of signal extraction and resistances to noise.