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