Memory-efficient multilevel physical optics algorithm for fast computation of scattering from three-dimensional complex targets

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buir.contributor.authorGürel, Levent
dc.citation.epage30en_US
dc.citation.spage26en_US
dc.contributor.authorManyas, Alpen_US
dc.contributor.authorGürel, Leventen_US
dc.coverage.spatialİzmir, Turkeyen_US
dc.date.accessioned2016-02-08T11:41:31Z
dc.date.available2016-02-08T11:41:31Z
dc.date.issued2007en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentComputational Electromagnetics Research Center (BiLCEM)en_US
dc.descriptionDate of Conference: 30-31 August 2007en_US
dc.descriptionConference Name: Computational Electromagnetics Workshop, IEEE 2007en_US
dc.description.abstractMultilevel physical optics (MLPO) algorithm provides a speed-up for computing the physical-optics integral over complex bodies for a range of aspect angles and frequencies. On the other hand, when computation of the RCS pattern as a function of θ, φ, and frequency is desired, the O N3 memory complexity of the algorithm may prevent the solution of electrically large problems. In this paper, we propose an improved version of the MLPO algorithm, for which the memory complexity is reduced to O N2 log N . The algorithm is based on the aggregation of only some portion of the scattering patterns at each aggregation step. This way, memory growth in each step is prevented, and a significant amount of saving is achieved.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T11:41:31Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2007en
dc.identifier.doi10.1109/CEM.2007.4387646en_US
dc.identifier.urihttp://hdl.handle.net/11693/26996
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/CEM.2007.4387646en_US
dc.source.titleProceedings of the Computational Electromagnetics Workshop, IEEE 2007en_US
dc.subjectAircraften_US
dc.subjectBoolean functionsen_US
dc.subjectElectromagnetismen_US
dc.subjectFunction evaluationen_US
dc.subjectMagnetismen_US
dc.subjectOpticsen_US
dc.subjectAspect anglesen_US
dc.subjectComplex bodiesen_US
dc.subjectComplex targetsen_US
dc.subjectComputational electromagnetics (CEM)en_US
dc.subjectFast computationsen_US
dc.subjectSpeed upsen_US
dc.subjectThree dimensional (3D)en_US
dc.subjectPhysical opticsen_US
dc.titleMemory-efficient multilevel physical optics algorithm for fast computation of scattering from three-dimensional complex targetsen_US
dc.typeConference Paperen_US

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