Modelling of computational electromagnetics problems by using discrete Trigonometric Transforms matrices

Tsitsas, NL

dc.contributor.author	Tsitsas, NL	en
dc.date.accessioned	2014-03-01T02:46:53Z
dc.date.available	2014-03-01T02:46:53Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32911
dc.subject	Boundary Element Method	en
dc.subject	Computational Complexity	en
dc.subject	Computational Electromagnetics	en
dc.subject	Efficient Algorithm	en
dc.subject	Method of Auxiliary Sources	en
dc.subject	Method of Moment	en
dc.subject.other	Discretizations	en
dc.subject.other	Efficient algorithm	en
dc.subject.other	Ill-conditioned	en
dc.subject.other	Inversion techniques	en
dc.subject.other	Method of auxiliary sources	en
dc.subject.other	Numerical results	en
dc.subject.other	Time efficiencies	en
dc.subject.other	Algorithms	en
dc.subject.other	Boundary element method	en
dc.subject.other	Computational complexity	en
dc.subject.other	Computational efficiency	en
dc.subject.other	Electric fields	en
dc.subject.other	Method of moments	en
dc.subject.other	Computational electromagnetics	en
dc.title	Modelling of computational electromagnetics problems by using discrete Trigonometric Transforms matrices	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/URSI-EMTS.2010.5637376	en
heal.identifier.secondary	http://dx.doi.org/10.1109/URSI-EMTS.2010.5637376	en
heal.identifier.secondary	5637376	en
heal.publicationDate	2010	en
heal.abstract	Several problems in Computational Electromagnetics (CEM) including discretizations of scatterers and radiators with the Method of Moments, the Boundary Element Method, and the Method of Auxiliary Sources may be modelled efficiently by exploiting certain properties of block matrices associated with Discrete Trigonometric Transforms (DTT's). To this direction, in this paper we describe the implementation of certain efficient algorithms for the inversion of such block matrices, which are superior in terms of computational complexity compared to standard inversion techniques. Numerical results are presented demonstrating the CPU-time efficiency as well as the accuracy for ill-conditioned matrices, stemming from specific CEM problems. © 2010 IEEE.	en
heal.journalName	Symposium Digest - 20th URSI International Symposium on Electromagnetic Theory, EMTS 2010	en
dc.identifier.doi	10.1109/URSI-EMTS.2010.5637376	en
dc.identifier.spage	958	en
dc.identifier.epage	961	en