The solution of large EFIE problems via preconditioned multilevel fast multipole algorithm

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buir.contributor.authorGürel, Levent
dc.citation.issueNumber11961en_US
dc.citation.volumeNumber2007en_US
dc.contributor.authorMalas, Tahiren_US
dc.contributor.authorGürel, Leventen_US
dc.coverage.spatialEdinburgh, UKen_US
dc.date.accessioned2016-02-08T11:40:11Zen_US
dc.date.available2016-02-08T11:40:11Zen_US
dc.date.issued2007en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentComputational Electromagnetics Research Center (BiLCEM)en_US
dc.descriptionDate of Conference: 11-16 November 2007en_US
dc.descriptionConference Name: 2nd European Conference on Antennas and Propagation, EuCAP 2007en_US
dc.description.abstractWe propose an effective preconditioning scheme for the iterative solution of the systems formulated by the electric- field integral equation (EFIE). EFIE is notorious for producing difficult-to-solve systems. Especially, if the target is complex and the utilized frequency is high, it becomes a challenge to solve these dense systems with even robust solvers such as full GMRES. For this purpose, we use an inner-outer solver scheme and use an approximate multilevel fast multipole algorithm for the inner solver to provide a very efficient approximation to the dense linear system matrix. We explore approximation level and inner-solver accuracy to optimize the efficiency of the inner-outer solution scheme. We report the solution of large EFIE systems of several targets to show the effectiveness of the proposed approach.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T11:40:11Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2007en
dc.identifier.doi10.1049/ic.2007.1165en_US
dc.identifier.urihttp://hdl.handle.net/11693/26943en_US
dc.language.isoEnglishen_US
dc.publisherInstitution of Engineering and Technologyen_US
dc.relation.isversionofhttps://doi.org/10.1049/ic.2007.1165en_US
dc.source.titleProceedings of the 2nd European Conference on Antennas and Propagation, EuCAP 2007en_US
dc.subjectElectric-field integral equationen_US
dc.subjectElectromagnetic scatteringen_US
dc.subjectMultilevel fast multipole algorithmen_US
dc.subjectPreconditioning of the integral equation methodsen_US
dc.subjectDense systemsen_US
dc.subjectApproximation algorithmsen_US
dc.subjectElectromagnetic wave scatteringen_US
dc.subjectIntegral equationsen_US
dc.subjectLinear systemsen_US
dc.subjectAntennasen_US
dc.titleThe solution of large EFIE problems via preconditioned multilevel fast multipole algorithmen_US
dc.typeConference Paperen_US

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