A comparison of different methods for the gradient evaluation in the inverse problems of the impedance tomography
Date issued
2003
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of West Bohemia
Abstract
The standard approach for the evaluation of the gradient during the optimization process in the impedance tomography is based on the inverse of the global admittance matrix utilizing certain iterative procedure of nodal voltages. In this paper the benefit of the gradient evaluation by different position of the grounding node on the mesh are compared.
Description
Subject(s)
impedanční tomografie, inverzní problém, metoda konečných prvků, objektivní funkce, impedance tomography, inverse problem, finite element method, objective function
Citation
AMTEE ’03 : fifth international conference on Advanced Methods in the Theory of Electrical Engineering : September 10-12, 2003 [Klatovy, Czech Republic], p. 1-4.