Error estimation and optimization of the method of auxiliary sources (MAS) for scattering from a dielectric circular cylinder

Anastassiu, HT; Kaklamani, DI

dc.contributor.author	Anastassiu, HT	en
dc.contributor.author	Kaklamani, DI	en
dc.date.accessioned	2014-03-01T01:20:24Z
dc.date.available	2014-03-01T01:20:24Z
dc.date.issued	2004	en
dc.identifier.issn	0048-6604	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15910
dc.subject	Cylinder	en
dc.subject	Method of auxiliary sources	en
dc.subject	Optimization	en
dc.subject.classification	Geochemistry & Geophysics	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.classification	Meteorology & Atmospheric Sciences	en
dc.subject.classification	Remote Sensing	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Cylinders (shapes)	en
dc.subject.other	Dielectric materials	en
dc.subject.other	Error analysis	en
dc.subject.other	Estimation	en
dc.subject.other	Matrix algebra	en
dc.subject.other	Measurement errors	en
dc.subject.other	Optimization	en
dc.subject.other	Permittivity	en
dc.subject.other	Problem solving	en
dc.subject.other	Dielectric circular cylinders	en
dc.subject.other	Error estimation	en
dc.subject.other	Matrix inversion	en
dc.subject.other	Method of auxiliary sources (MAS)	en
dc.subject.other	Electromagnetic wave scattering	en
dc.title	Error estimation and optimization of the method of auxiliary sources (MAS) for scattering from a dielectric circular cylinder	en
heal.type	journalArticle	en
heal.identifier.primary	10.1029/2004RS003028	en
heal.identifier.secondary	http://dx.doi.org/10.1029/2004RS003028	en
heal.identifier.secondary	RS5015	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	This article presents a rigorous error estimation of the method of auxiliary sources (MAS) when applied to the solution of the electromagnetic scattering problem involving dielectric objects. The geometry investigated herein is a circular, dielectric cylinder of infinite length. The MAS matrix is inverted analytically, via advanced eigenvalue analysis, and an exact expression for the boundary condition error owing to discretization is derived. Furthermore, an analytical formula for the condition number of the linear system is also extracted, explaining the irregular behavior of the computational error resulting from numerical matrix inversion. Also, the effects of the dielectric parameters on the error are fully investigated. Finally, the optimal location of the auxiliary sources is determined on the grounds of error minimization.	en
heal.publisher	AMER GEOPHYSICAL UNION	en
heal.journalName	Radio Science	en
dc.identifier.doi	10.1029/2004RS003028	en
dc.identifier.isi	ISI:000224884500001	en
dc.identifier.volume	39	en
dc.identifier.issue	5	en
dc.identifier.spage	RS5015	en
dc.identifier.epage	1-RS5015-10	en