Mathematical Classification of Magnetotelluric Inversion Methods
详细信息
- 责任者：Han Bo (Institute of Geophysics and Geomatics ; China University of Geosciences (Wuhan) ; Wuhan 430074 ; China) ; Hu Xiangyun
- 刊名：Oil Geophysical Prospecting
- 出版年：2012
- 卷期：47(1)
- 关键词：大地电磁法 ; magnetotelluric methods
- 页码：p.177-187
- 图表：2 illus., 2 tables, 81 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
During the past five decades,significant progress has been made in magnetotelluric(MT) method.Particularly the inversion techniques have been transformed from 1D into 2D,or even 3D.Nowadays there are numerous MT inversion methods,most of which belong to linearized,iterated approaches that make use of the gradient of the objective function,and almost all of these methods adopt strategies based on the same theory to handle the general ill-posedness of the inverse problem.This paper briefly introduces the basic idea of MT inversion,which is known as regularization theory.It then makes a mathematical classification of several main inversion methods according to the numerical optimization algorithms they employed so that the clear relationship among them can be acquired.In addition,their main merits and drawbacks are compared with each other.Finally,trends for MT inversion are considered.
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