Taking aim at solving the important velocity model problem in wave equation pre-stack depth migration, This paper studies the method and software of building 3d migration velocity model.
针对波动方程叠前深度偏移中重要的速度模型问题，研究了一套三维速度建模方法和软件。
This paper presents a method for calculating travel time of diffracted wave from velocity model and for making diffraction migration.
本文提出一种按速度模型计算绕射波射线旅行时和进行绕射归位的方法。
The correct migration velocity can be estimated by integrating the right percentage of the velocity model, which produces the greatest improvement.
准确的偏移速度可以通过选用正确的速度模型百分比估算出来，可使成像效果得到最显著的提高。
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