3D ACOUSTIC PRESTACK REVERSE-TIME MIGRATION

被引：75

作者：

CHANG, WF

MCMECHAN, GA

机构：

[1] Center for Lithospheric Studies, University of Texas Texas at Dallas, Richardson, Texas, 75083-0688

来源：

GEOPHYSICAL PROSPECTING | 1990年 / 38卷 / 07期

关键词：

D O I：

10.1111/j.1365-2478.1990.tb01872.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A prestack reverse‐time migration algorithm which operates on common‐source gathers, recorded at the Earth's surface, from 3D structures, is conceived, implemented and tested. Reverse‐time extrapolation of the recorded wavefield (a boundary‐value problem), and computation of the excitation‐time imaging condition for each point in a 3D volume (an initial‐value problem), are both performed using a second‐order finite‐difference solution of the full 3D scalar wave equation. The algorithm is illustrated by processing synthetic data for a point diffractor, an oblique wedge, and the French double dome and fault model. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：737 / 755

页数：19

共 40 条

[21] A SIMPLE EXACT METHOD OF 3-D MIGRATION THEORY [J].