Iterative dip-steering median filter

doi:10.1016/j.jappgeo.2017.05.012

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	Iterative dip-steering median filter
	Huo, Shoudong 1,2; Zhu, Weihong 3; Shi, Taikun 1,2
刊名	JOURNAL OF APPLIED GEOPHYSICS
	2017-09-01
卷号	144 页码:151-156
关键词	Noise attenuation Median filter Fourier-radial transform Dominant dip
ISSN号	0926-9851
DOI	10.1016/j.jappgeo.2017.05.012
文献子类	Article
英文摘要	Seismic data are always contaminated with high noise components, which present processing challenges especially for signal preservation and its true amplitude response. This paper deals with an extension of the conventional median filter, which is widely used in random noise attenuation. It is known that the standard median filter works well with laterally aligned coherent events but cannot handle steep events, especially events with conflicting dips. In this paper, an iterative dip-steering median filter is proposed for the attenuation of random noise in the presence of multiple dips. The filter first identifies the dominant dips inside an optimized processing window by a Fourier-radial transform in the frequency-wavenumber domain. The optimum size of the processing window depends on the intensity of random noise that needs to be attenuated and the amount of signal to be preserved. It then applies median filter along the dominant dip and retains the signals. Iterations are adopted to process the residual signals along the remaining dominant dips in a descending sequence, until all signals have been retained. The method is tested by both synthetic and field data gathers and also compared with the commonly used f-k least squares de-noising and f-x deconvolution. (C) 2017 Elsevier B.V. All rights reserved.
WOS研究方向	Geology ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000408781800016
资助机构	National Natural Science Foundation of China(41574134) ; National Natural Science Foundation of China(41574134) ; Chinese Academy of Science ; Chinese Academy of Science ; National Natural Science Foundation of China(41574134) ; National Natural Science Foundation of China(41574134) ; Chinese Academy of Science ; Chinese Academy of Science ; National Natural Science Foundation of China(41574134) ; National Natural Science Foundation of China(41574134) ; Chinese Academy of Science ; Chinese Academy of Science ; National Natural Science Foundation of China(41574134) ; National Natural Science Foundation of China(41574134) ; Chinese Academy of Science ; Chinese Academy of Science
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/61882]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Shi, Taikun
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 3.Saudi Arabian Oil Co, Dhahran 31311, Saudi Arabia
推荐引用方式 GB/T 7714	Huo, Shoudong,Zhu, Weihong,Shi, Taikun. Iterative dip-steering median filter[J]. JOURNAL OF APPLIED GEOPHYSICS,2017,144:151-156.
APA	Huo, Shoudong,Zhu, Weihong,&Shi, Taikun.(2017).Iterative dip-steering median filter.JOURNAL OF APPLIED GEOPHYSICS,144,151-156.
MLA	Huo, Shoudong,et al."Iterative dip-steering median filter".JOURNAL OF APPLIED GEOPHYSICS 144(2017):151-156.