wave equation migration

In this technical report, we review the recent development of true amplitude one-way wave equation migration and summarize the migrated amplitude performance from different one-way wave equations.

本报告综述了近年来发展起来的真振幅单程波方程偏移理论，对各种基于单程波方程的偏移振幅作出了系统的分析介绍。

The paper also gives the prospect of wave equation migration.

对波动方程偏移成像发展趋势进行展望.

Its essential is that the continuation of 3 D migration wave equation is performed twice in τ( or ζ) direction using a half step respectively.

该方法是将三维偏移方程在τ（或ζ）方向分两步分别以二分之一步长进行延拓。

Prestack depth migration based on wave equation using time-shift imaging condition

时移成像条件下的波动方程叠前深度偏移

Its key techniques include datum correction through upward and downward continuations of wave field, velocity model modification of imaging points based on common imaging gather in depth domain, and migration anti-alias filter through interpolation of migration data before and after application of imaging condition equation.

此方法包括波场向上和向下延拓进行基准面校正、基于深度域共成像道集的成像点速度模型修正技术和应用成像条件前后作偏移数据内插的偏移反假频技术等核心技术。