本文是波场计算中的混合方法(Shtivelman,1984)的继续。此方法结合解析技术和数值技术,基于波的散射和波的传播过程的分解。本文对此作了研究和改进,尤其是将它推广到散射体之上为非均匀介质情况(假设非均一性微弱即散射效应可以被忽略)时,可用较简单及更合适的形式表示。文中举了几个例子,说明本方法在二维声波模拟问题上的应用。 This article is a continuation of the hybrid approach in wavefield calculations (Shtivelman, 1984). This method combines analytical and numerical techniques based on wave scattering and the decomposition of wave propagation. In this paper, we study and improve it, especially when it is generalized to scatterers as inhomogeneous media (assuming that the inhomogeneity is weak, that is, the scattering effect can be neglected), which can be expressed in a simpler and more suitable form. A few examples are given to illustrate the application of this method to two-dimensional acoustic simulations.