Optimum split-step Fourier one-way operators for seismic modeling and imaging in 3D VTI media

doi:10.1029/2006GL025849

	Optimum split-step Fourier one-way operators for seismic modeling and imaging in 3D VTI media
	Liu, LN; Zhang, JF
刊名	GEOPHYSICAL RESEARCH LETTERS
	2006-05-12
卷号	33 期号:9
ISSN号	0094-8276
DOI	10.1029/2006GL025849
文献子类	Article
英文摘要	One-way operators are proposed for modeling wide-angle wave propagation in 3D heterogeneous, transversely isotropic media with a vertically symmetric axis (VTI). The operators are built in the wavenumber-space domain such that the terms in the space domain and in the wavenumber domain are separable. This means that the resulting algorithm can be implemented alternately in the space and wavenumber domains using the fast Fourier transforms. The proposed one-way operators can accommodate a wide range of anisotropy rather than the weak anisotropy. An optimization scheme is used to determine the coefficients in the operators by directly matching to spatially varying, exact anisotropic phase-shift operators over a prescribed angular range of wave propagation. We demonstrate the accuracy of the one-way operators by a comparison with the two-way elastic anisotropic finite-difference modeling in the presence of severe lateral variations.
WOS关键词	TRANSVERSELY ISOTROPIC MEDIA ; GENERALIZED-SCREEN ALGORITHMS ; DEPTH MIGRATION ; EXPLICIT OPERATORS ; ANISOTROPIC MEDIA ; PHASE-SHIFT
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000237799500002
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/66608]
专题	中国科学院地质与地球物理研究所
通讯作者	Liu, LN
作者单位	Chinese Acad Sci, State Key Lab Lithosphere Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu, LN,Zhang, JF. Optimum split-step Fourier one-way operators for seismic modeling and imaging in 3D VTI media[J]. GEOPHYSICAL RESEARCH LETTERS,2006,33(9).
APA	Liu, LN,&Zhang, JF.(2006).Optimum split-step Fourier one-way operators for seismic modeling and imaging in 3D VTI media.GEOPHYSICAL RESEARCH LETTERS,33(9).
MLA	Liu, LN,et al."Optimum split-step Fourier one-way operators for seismic modeling and imaging in 3D VTI media".GEOPHYSICAL RESEARCH LETTERS 33.9(2006).