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Detection of Travelling Wave Transient Signal Using Wavelet Transformation Scalogram

LIN Jian, SHEN Zhi guang, YUZong w ei Microelectronic Tech. Center, ShanghaiJiaotong Univ., Shanghai200030, China  
A new approach using scalogram of w avelet transform for travelling w ave transient signal detection, under noise free condition or noise condition separately, was described. The detection is based on the detection ofthe peaks ofscalogram . The scalogram s ofthree kinds ofw avelettransform s and the selection ofparam etersw ere sim ulated. The resultshow sthatthisapproach hasgood detection effecteven underlow SNRcondition ifappropriate w aveletand param etersare selected. Com pared w ith the detecting by using wavelettransform only, this schem e has betteradapting ability and detecting ability.
【CateGory Index】: TN911.23
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