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

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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

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