Reconstruction of Permittivity Profile of Stratified Lossy Dielectric using Newton-Kantorovich Iterative Scheme
S.G. Alexin & O.O. Drobakhin
Dnepropetrovsk National University
National Aerospace University “Kharkkiv Aviation Institute”,
Kharkiv 61085, Ukraine
Abstract
The equations specifying the general Newton-Kantorovich iterative scheme for the case of lossy stratified dielectric structures are presented. Both dispersive and non-dispersive permittivity models are considered. The improvement of the scheme assuming non-dispersive permittivity model is proposed. The advantage of modified scheme is shown by numerical experiments. The problem of reflecting interfaces localization in non-dispersive case is considered. The new approaches to the spectral analysis order choosing and the main spectral components selection are proposed and utilized in numerical experiments.
KEY WORDS: permittivity, reconstruction, iterativescheme, numerical experiment
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