Qualitative analysis of MTEM response using instantaneous attributes

doi:10.1016/j.jappgeo.2017.07.014

	Qualitative analysis of MTEM response using instantaneous attributes
	Fayemi, Olalekan 1,2; Di, Qingyun 1
刊名	JOURNAL OF APPLIED GEOPHYSICS
	2017-11-01
卷号	146 页码:37-45
关键词	Mtem Instantaneous Attributes Polynomial Phase Difference Center Finite Difference Fdtd
ISSN号	0926-9851
DOI	10.1016/j.jappgeo.2017.07.014
文献子类	Article
英文摘要	This paper introduces new technique for qualitative analysis of multi-transient electromagnetic (MTEM) earth impulse response over complex geological structures. Instantaneous phase and frequency attributes were used in place of the conventional common offset section for improved qualitative interpretation of MTEM data by obtaining more detailed information from the earth impulse response. The instantaneous attributes were used to describe the lateral variation in subsurface resistivity arid the visible geological structure with respect to given offsets. Instantaneous phase attribute was obtained by converting the impulse response into a complex form using the Hilbert transform. Conversely, the polynomial phase difference (PPD) estimator was favored over the center finite difference (CFD) approximation method in calculating the instantaneous frequency attribute because it is computationally efficient and has the ability to give a smooth variation of the instantaneous frequency over a common offset section. The observed results from the instantaneous attributes were in good agreement with both the subsurface model used and the apparent resistivity section obtained from the MTEM earth impulse response. Hence, this study confirms the capability of both instantaneous phase and frequency attributes as highly effective tools for MTEM qualitative analysis. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	GROUND-PENETRATING RADAR ; FREQUENCY
WOS研究方向	Geology ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000416188800004
资助机构	R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; Third World Association of Sciences (TWAS) ; Third World Association of Sciences (TWAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; Third World Association of Sciences (TWAS) ; Third World Association of Sciences (TWAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; Third World Association of Sciences (TWAS) ; Third World Association of Sciences (TWAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; R&D of Key Instruments and Technologies for Deep Resources Prospecting (the National R&D Projects for Key Scientific Instruments)(ZDYZ2012-1-05-04) ; Third World Association of Sciences (TWAS) ; Third World Association of Sciences (TWAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82126]
专题	中国科学院地质与地球物理研究所
通讯作者	Fayemi, Olalekan
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Fayemi, Olalekan,Di, Qingyun. Qualitative analysis of MTEM response using instantaneous attributes[J]. JOURNAL OF APPLIED GEOPHYSICS,2017,146:37-45.
APA	Fayemi, Olalekan,&Di, Qingyun.(2017).Qualitative analysis of MTEM response using instantaneous attributes.JOURNAL OF APPLIED GEOPHYSICS,146,37-45.
MLA	Fayemi, Olalekan,et al."Qualitative analysis of MTEM response using instantaneous attributes".JOURNAL OF APPLIED GEOPHYSICS 146(2017):37-45.