Wave transforms of transient electromagnetic field in conductive earth

被引：1
|
作者：
Gretskov, G. A. [1 ]
Epov, M. I. [1 ,2 ]
Antonov, E. Yu. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, AA Trofimuk Inst Petr Geol & Geophys, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia
来源：
RUSSIAN GEOLOGY AND GEOPHYSICS | 2017年 / 58卷 / 06期
关键词：
TEM soundings; wave transform; regularization;
D O I：
10.1016/j.rgg.2016.09.031
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The study aims at finding a stable method for transformation of time-domain electromagnetic diffusion field to an electromagnetic wavefield. Two ways of transformation are considered: singular-value decomposition (SVD) and Tikhonov's regularizations. Transformation is applied to TEM responses of a conductive half-space, a conductive S film, and to a series of horizontally layered models. The wave transforms are used to plot travel-time curves and to estimate the velocity of EM field propagation. (C) 2017, V.S. Sobolev TOM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：744 / 751
页数：8
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