论文部分内容阅读
地震勘探中平面波分解技术在地震资料处理与反演领域均得以广泛应用,通过正演算法模拟平面波记录有助于理解和检验平面波分解的效果和精度.本文给出一种用以模拟复杂介质中平面波的数值算法,考虑了振幅随入射角度的变化.与前人研究的平面波模拟算法相比,该算法基于波动方程的单程波解法,不但适用于横向非均匀介质,在地层倾角水平条件下还能够准确模拟振幅随入射角关系.通过Marmousi模型的计算实例,证明了本文方法的可行性.
In the seismic exploration, the plane wave decomposition technique is widely used in both the seismic data processing and the inversion, and the simulation and simulation of the plane wave recording by the forward algorithm will help to understand and test the effect and accuracy of the plane wave decomposition.In this paper, Compared with the plane wave simulation algorithm studied in the past, this algorithm is based on the one-way wave solution of the wave equation, which is not only suitable for horizontal inhomogeneous media, but also in the condition of the dip angle Which can exactly simulate the relationship between amplitude and angle of incidence.The feasibility of this method is proved by the calculation example of Marmousi model.