The 3D Modeling of GATEM in Fractured Random Media Based on FDTD
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Published:2021-12-30
Issue:
Volume:
Page:
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ISSN:1943-5711
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Container-title:The Applied Computational Electromagnetics Society Journal (ACES)
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language:
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Short-container-title:ACES Journal
Author:
Wu Qiong,Zhang Yuehan,Guan Shanshan,Li Dongsheng,Ji Yanju
Abstract
Grounded-source airborne time-domain electromagnetic (GATEM) method is an effective detection method of geological survey. The real geological media are rough, self-similar characteristics, and the diffusion process is anomalous diffusion. This paper primarily considers the GATEM responses of a grounded wire source in random media. Von Kármán function is used to establish three-dimensional (3D) random media model and the GATEM responses are realized based on 3D finite-difference time-domain (FDTD) method. The method is verified by homogeneous half-space model. The electromagnetic responses of random abnormal body model are analyzed, and the results show that the abnormal body can be clearly identified. The electromagnetic responses of a fractured model are analyzed, and the results show that the tilt angle of the fault can be reflected.
Publisher
River Publishers
Subject
Electrical and Electronic Engineering,Astronomy and Astrophysics
Cited by
1 articles.
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