我们对各向同性、随机速度变化仅在正向出现波散的常密度介质中传播的时间调和标量波场作了理论分析,提出了一种简单、稳健的方法,它将平均波振幅的对数与波振幅对数的平均相结合起来,分离了波散衰减和吸收效应。用有限差分法模拟了具有佛克特体流变学特征的二维随机介质中波的传播,说明波场变化的演变情况,并证明分离程序在较宽的地震反射 We make a theoretical analysis of time-invariant scalar wavefield propagating in isotropic and stochastic velocities that propagate only in the medium of constant density in which forward waves appear, and propose a simple and robust method that combines the average Combining the numbers with the average logarithm of the wave amplitude separates the wave attenuation and absorption effects. The finite difference method was used to simulate the wave propagation in a two-dimensional random medium with Folkert’s rheological characteristics, to illustrate the evolution of the wave field and to demonstrate that the separation procedure can be applied to a wide range of seismic reflections