Study on the Composite Electromagnetic Scattering from 3D Conductor Multi-Objects above the Rough Surface

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dc.contributor.authorLiu, Ting
dc.contributor.authorZhang, Lin
dc.contributor.authorZeng, Zhi-Guo
dc.contributor.authorWei, Sheng-Jun
dc.coverage.issue2cs
dc.coverage.volume30cs
dc.date.accessioned2021-07-12T08:14:55Z
dc.date.available2021-07-12T08:14:55Z
dc.date.issued2021-06cs
dc.description.abstractThe traditional algorithm for the composite electromagnetic scattering from 3D conductor multi-objects above the rough surface has such weaknesses as slow computation speed and large memory consumption. On the basis of the fast algorithm integrated with the traditional coupling method of moment and physical optics method, this paper uses the multilevel fast multipole method (MLFMA) and fast far-field approximation (FAFFA) to accelerate the multiplication of matrix vector between the object and environment, which greatly improves the computation speed and reduces the memory consumption. This paper adopts the dual Debye sweater permittivity model simulate the real sea surface environment, establishes the coupling MoM-PO model of composite scattering from multi-objects on and above the sea surface, and obtains the composite electromagnetic scattering coefficient in virtue of the interaction between object area and rough surface area calculated by the MLFMA and FAFFA. At the same time, the changes of composite scattering coefficient along with the change of object spacing, size, incident angles, tilt angle, type and sea surface wind speed are analyzed in detail. The computation results show that the hybrid method consisting of the method of moment accelerated by MLFMA and FAFFA and physical optics method brings higher accuracy and computation efficiency (the computation time and memory consumption are 62% and 82% of the method of moment respectively).en
dc.formattextcs
dc.format.extent323-334cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2021 vol. 30, č. 2, s. 323-334. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2021.0323en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/200467
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2021/21_02_0323_0334.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectHybrid methoden
dc.subject3D multiple targetsen
dc.subjectcomposite scatteringen
dc.titleStudy on the Composite Electromagnetic Scattering from 3D Conductor Multi-Objects above the Rough Surfaceen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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