Analyzing Scale Characteristics of Random-Uniform Medium by Wavelet Transform

Abstract

Abstract:

To study scale characteristics of heterogeneities in complex heterogeneous medium, this paper constructed random and uniform media models. Scale characteristics of three kinds of seismic waves, namely direct wave, scattered wave and reflected wave, in random and uniform media were studied and analyzed by wavelet transform. The results showed that three kinds of seismic waves behaved different scale characteristics, and direct wave behaved large scale characteristic, and scattered wave was second, and reflected wave behaved small scale characteristic. With lateral autocorrelation length of model parameter becoming larger, optional scale of direct wave had a trend of decrease, and optional scale of scattered wave and reflected wave had a trend of increase. Therefore, the research of this paper offered a reference to analyze scale characteristics of heterogeneities and seismic wave in seismic section by wavelet transform.

Key words: wavelet transform, random medium, autocorrelation length, optional scale

CLC Number:

P631

LI Can-Ping, LIU Xue-Wei, ZHAO Gui-Yan. Analyzing Scale Characteristics of Random-Uniform Medium by Wavelet Transform[J]. Geoscience, 2010, 24(2): 392-396.

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