Electromagnetic field inversion using the Quickprop method

Author

Rekanos, Ioannis T. ; Tsiboukis, Theodoros D.

Author_Institution

Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece

Volume

33

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

1872

Lastpage

1875

Abstract

The Quickprop method for function minimization that was initially introduced to the training process of multilayer perceptrons is applied to inversion problems in electromagnetism. This method is a variation of the general gradient methods and is combined with the finite elements analysis in order to estimate the inner geometric structure of inaccessible regions via a set of electromagnetic field or potential measurements. An application to the estimation of geometrical parameters of a rectangular cross section conductor imbedded in a conductive half space region is presented. Finally the results are compared to the steepest descent method

Keywords

backpropagation; electrical engineering; electrical engineering computing; electromagnetic fields; finite element analysis; inverse problems; multilayer perceptrons; parameter estimation; Quickprop method; conductive half space region; electromagnetic field inversion; electromagnetic field measurements; electromagnetism; finite elements analysis; function minimization; general gradient methods; geometrical parameter estimation; inner geometric structure; multilayer perceptrons; potential measurements; rectangular cross section conductor; steepest descent method; training process; Arm; Convergence; Electromagnetic fields; Geometry; Minimization methods; Multi-layer neural network; Multilayer perceptrons; Neural networks; Quadratic programming; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.582648

Filename

582648