Incident angle field estimation : a one-way propagator approach

doi:10.6038/cjg20130323

IGGCAS OpenIR

	Incident angle field estimation : a one-way propagator approach
	Zhang Jian-Feng; Zhang Hui; Liu Li-Nong
	2013-03-01
发表期刊	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN	0001-5733
卷号	56 期号:3 页码:953-960
文章类型	Article
摘要	We present a robust method to estimate the incident angle field based on the one-way propagator. The employment of monochromatic wave field is to reduce the extrapolation time dramatically and ensure the generation of the incident angle field in the whole imaging space. This incident angle field estimation method has high computational efficiency and can be applied in getting angle gather in one-way wave equation depth migration scheme. Comparison with depth migration, the cost of incident angle field estimation can be omitted. The proposed algorithm is free of smoothness of velocity model and hence can avoid large incident angle variation with small velocity perturbation compared to the traditional ray tracing or travel-time gradient picking method. This means the proposed angle field estimation method is more suitable for real velocity model and match well with the one-way wave equation prestack depth migration scheme. Computation of incident angle fields of the 2-D, 3-D layered and complicated structured models show the high computational efficiency, stability and precision of the proposed algorithm.
关键词	One-way wave equation Incident angle Angle gather
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.6038/cjg20130323
关键词[WOS]	COMMON-IMAGE GATHERS ; MIGRATION ; DOMAIN
收录类别	SCI
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000317169200023
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.iggcas.ac.cn/handle/132A11/86761
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang Jian-Feng
作者单位	Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhang Jian-Feng,Zhang Hui,Liu Li-Nong. Incident angle field estimation : a one-way propagator approach[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2013,56(3):953-960.
APA	Zhang Jian-Feng,Zhang Hui,&Liu Li-Nong.(2013).Incident angle field estimation : a one-way propagator approach.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,56(3),953-960.
MLA	Zhang Jian-Feng,et al."Incident angle field estimation : a one-way propagator approach".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 56.3(2013):953-960.