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本文介绍二维多层平界面任意倾斜情况下计算地震模型的一种简便算法。这种方法不需经过叠代即可算出震源任意位置时的时距曲线和共中心点在任意位置时的共中心点时距曲线。也能简便地算出t_0时间剖面。其计算精度完全可以满足要求。文中还根据自已的试算经验讨论了计算射线轨迹过程中的几个限制和实现技巧。给出了计算流程和试算结果。
In this paper, a simple and convenient algorithm for calculating seismic models with arbitrary inclination of two-dimensional multilayered flat interfaces is introduced. This method does not need to be iterated to calculate the time-distance curve at any position of the source and the centroid time-distance curve when the center point is at any position. It is also easy to calculate the t_0 time profile. The calculation accuracy can meet the requirements. The paper also discusses several limitations and techniques in the calculation of ray trajectories based on their own trial experience. Given the calculation process and trial results.