Fast numerical modeling of multitransmitter electromagnetic data using multigrid quasi-linear approximation

被引：18

作者：

Ueda, Takumi ^{[1
]}

Zhdanov, Michael S. ^{[1
]}

机构：

[1] Univ Utah, Geol & Geophys Dept, Salt Lake City, UT 84112 USA

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2006年 / 44卷 / 06期

关键词：

electromagnetic (EM); multigrid approach; multitransmitter modeling; quasilinear (QL) approximation;

D O I：

10.1109/TGRS.2006.864386

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Multitransmitter electromagnetic (EM) surveys are widely used in remote-sensing and geophysical exploration. The interpretation of the multitransmitter geophysical data requires numerous three-dimensional (3-D) modelings of the responses of the receivers for different geoelectrical models of complex geological formations. In this paper, we introduce a fast method for 3-D modeling of EM data, based on a modified version of quasilinear approximation, which uses a multigrid approach. This method significantly speeds up the modeling of multitransmitter-multireceiver surveys. The developed algorithm has been applied for the interpretation of marine controlled-source electromagnetic (MCSEM) data. We have tested our new method using synthetic problems and for the simulation of MCSEM data for a geoelectrical model of a Gemini salt body.

引用

页码：1428 / 1434

页数：7

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