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《Progress In Geophysics》 2005-01
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The wave field characteristics in 2-D elastic random media

XI Xian 1, 2 , YAO Yao 2 (1. Mathematics Department, Huazhong University of Science & Technology, Wuhan 430074,China; 2. Geophysical Department, China University of Geosciences, Wuhan 430074, China)  
This paper, through the staggered-mesh finite difference simulations of the wave equations, simulated the propagation of the seismic wave and the relevant zero offset time record in the 2-D elastic random medium models. We divide up the theoretic recording sections into three different time sectors, separately calculated and extracted the statistical characteristics of the sections in the different time sectors. Exercised the Orthogonal Experimental Design and analyses technique, of the five statistic characteristics of the intermixed random media model (autocorrelation length, roughness factor, standard deviation of fluctuation, longitudinal wave's background velocity, and longitudinal transverse wave's velocity ratio) and their corresponding interactions, we allsidedly researched their relationships with each different wave field characteristic, and gained several conclusions.
【CateGory Index】: P315.31
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