Abstract：Non-coherent disturbances are often treated as "noise"in high-resolution seismic data,which actually partially resulted from inhomogeneity of medium in a small-scale,that made one can make inversion of inhomogeneity of medium in small scale in statistical meaning (for instance,spatial autocorrelation function, average anomalous scale and stanBard deviation etc.).By using staggered finite-difference grads forward modeling for wave equation,the paper modeled seismic propagation in 2-D viscoelastic random medium and self-shooting and self-receiving records;studied characteristics of wavefield，arrival travel-time in maximum amplitude and amplitude attenuation in viscoelastic random medium and gained some conclusions. It is showed by forward modeling that the complex characteristics of wavefield such as scattering wave，amplitude attenuation，traveltime disturbance and seismic tails etc. existed in seismic records associated with viscoelastic random medium model;the scattering form of wave strongly depends on statistical characters of medium such asautpcorrelation，variance and absorption coefficient;the variation of autocorrelation length in medium has a little influence on amplitude of wavefront.
奚先, 姚姚. 二维黏弹性随机介质中的波场特征[J]. 石油地球物理勘探, 2004, 39(4): 381-387.
Xi Xian, Yao Yao. Characteristics of wavefield in 2-D viscoeiastic random medium. OGP, 2004, 39(4): 381-387.
