A True Amplitude Split-Step Fourier Pre-Stack Depth Migration Based on One-Way Wave Equation
详细信息
- 责任者：Xie Jianjian (Key Lab. of Earth Exploration and Information Technology ; Ministry of Education ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Wang Xuben
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2011
- 卷期：33(1)
- 关键词：叠前深度偏移 ; prestack depth migration
- 页码：p.36-39
- 图表：5 illus., 12 refs.
- 分类号：1600
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
In this paper, the authors take the combination of the true amplitude one-way wave equation with split-step Fourier (SSF) operator, which includes the advantages of the amplitude preservation method and sub-step Fourier method. Therefore it has the advangates of calculation, accounting for less memory, the significant amplitude deviation after the Fourier Finite Difference Migration method. It has the advantage of high precision imaging with dynamic characteristics of seismic waves compared with the widely used split-step finite difference pre-stack depth migration. The authors successfully carried out the ture amplitude split-step Fourier pre-stack depth migration based on the Marmousi model and achieve a good imaging result.
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