One-step extrapolation method for reverse time migration

doi:10.1190/1.3123476

CSpace

	One-step extrapolation method for reverse time migration
	Zhang, Yu 1; Zhang, Guanquan 2
	2009-07-01
发表期刊	GEOPHYSICS
ISSN	0016-8033
卷号	74 期号:4 页码:A29-A33
摘要	We have proposed a new method, a one-step extrapolation algorithm, to solve the acoustic wave equation. By introducing a square-root operator, the two-way wave equation can be formulated as a first-order partial differential equation in time, which is similar to the one-way wave equation. To solve the new wave equation, we used a stable explicit extrapolation method in the time direction and handled lateral velocity variations in the space and wavenumber domains. Unlike the conventional explicit finite-difference schemes, the new method does not suffer from numerical instability or numerical dispersion problems. It can be used to design cost-effective and high-quality reverse time migration or modeling code.
关键词	extrapolation geophysical signal processing inverse problems seismic waves seismology wave equations
DOI	10.1190/1.3123476
语种	英语
资助项目	Chinese Natural Science Foundation[10431030]
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000267599500001
出版者	SOC EXPLORATION GEOPHYSICISTS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/8480
专题	中国科学院数学与系统科学研究院
通讯作者	Zhang, Yu
作者单位	1.CGGVeritas, Houston, TX USA 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yu,Zhang, Guanquan. One-step extrapolation method for reverse time migration[J]. GEOPHYSICS,2009,74(4):A29-A33.
APA	Zhang, Yu,&Zhang, Guanquan.(2009).One-step extrapolation method for reverse time migration.GEOPHYSICS,74(4),A29-A33.
MLA	Zhang, Yu,et al."One-step extrapolation method for reverse time migration".GEOPHYSICS 74.4(2009):A29-A33.