Radar cross section (RCS) computation of impedance, perturbed-circular cylinders based on an auxiliary sources model

Avdikos, GK; Anastassiu, HT; Vouldis, AT

dc.contributor.author	Avdikos, GK	en
dc.contributor.author	Anastassiu, HT	en
dc.contributor.author	Vouldis, AT	en
dc.date.accessioned	2014-03-01T01:54:29Z
dc.date.available	2014-03-01T01:54:29Z
dc.date.issued	2005	en
dc.identifier.issn	11092742	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27412
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-24644454426&partnerID=40&md5=7a21faf80f80886ccb5c2016abbdf8c6	en
dc.subject	Electromagnetic scattering	en
dc.subject	Impedance scatterers	en
dc.subject	Method of Auxiliary Sources	en
dc.subject	Radar cross section	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Computational geometry	en
dc.subject.other	Cylinders (containers)	en
dc.subject.other	Electromagnetic wave scattering	en
dc.subject.other	Linear equations	en
dc.subject.other	Mathematical models	en
dc.subject.other	Mathematical transformations	en
dc.subject.other	Optimization	en
dc.subject.other	Perturbation techniques	en
dc.subject.other	Auxiliary sources model	en
dc.subject.other	Impedance scatterers	en
dc.subject.other	Method of auxiliary sources	en
dc.subject.other	Perturbed-circular cylinders	en
dc.subject.other	Radar cross section	en
dc.title	Radar cross section (RCS) computation of impedance, perturbed-circular cylinders based on an auxiliary sources model	en
heal.type	journalArticle	en
heal.publicationDate	2005	en
heal.abstract	An electromagnetic scattering analysis for infinite, coated conducting cylinders, with various geometrical cross sections, is performed on the basis of the Method of Auxiliary Sources (MAS), in conjunction with the Standard Impedance Boundary Condition (SIBC). A key point of the MAS accuracy and efficiency is the much-desired optimization of the auxiliary sources location. Unlike in the circular cylinder case, where this optimization can be carried out analytically, generic geometries are so far amenable only to numerical procedures. A set of cross sections, which can be considered as perturbations of the circle, are investigated, to assess the effect of gradual geometry transformation on the MAS boundary condition error and the linear system condition number. The monostatic RCS for the location of the auxiliary surface with optimum trade-off between error and condition number is plotted. The purpose of this study is the extraction of useful conclusions on the optimum location of the auxiliary sources for arbitrarily shaped impedance scatterers, and the facilitation of possible analytical optimization schemes in the future.	en
heal.journalName	WSEAS Transactions on Communications	en
dc.identifier.volume	4	en
dc.identifier.issue	11	en
dc.identifier.spage	1261	en
dc.identifier.epage	1267	en