Inverse scattering by perfectly electric conducting (PEC) rough surfaces: an equivalent model with line sources

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dc.authorid0000-0001-5168-4367
dc.authorid0000-0003-2966-5623
dc.contributor.authorSefer, Ahmeten_US
dc.contributor.authorYapar, Alien_US
dc.date.accessioned2022-10-26T19:08:39Z
dc.date.available2022-10-26T19:08:39Z
dc.date.issued2022
dc.departmentIşık Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering and Natural Sciences, Department of Electrical and Electronics Engineeringen_US
dc.description.abstractThis paper presents a new method for the reconstruction of the perfectly electric conducting (PEC) rough surface profiles by utilizing electromagnetic waves. The inaccessible rough surface is illuminated by a tapered plane electromagnetic wave and the scattered field data are measured on a certain number of points above the surface under test. The method for the inverse electromagnetic imaging problem is based on a special representation of the scattered field in terms of a finite number of fictitious discrete line sources located along a plane below the rough surface. The current densities of these fictitious sources are obtained through the regularized solution of an ill-posed problem. Then, it is shown that the image of the rough surface can be directly retrieved by seeking the points in the space where the tangential component of the total electric field vanishes. Alternatively, a much more rigorous iterative method based on a regularized Newton algorithm is also presented. A comprehensive numerical analysis is provided to demonstrate the feasibility of the presented approach. In this context, the quantitative successes of both approaches are interpreted by considering a very sensitive ?2-norm based error function between the actual and the reconstructed surface profiles. Regarding different scattering scenarios taken into account, the error values obtained for satisfactory reconstructions are generally in the range of 10% - 30% for both methods. It is also shown that the presented algorithms are capable of reconstructing the rough surfaces which oscillate for every ? horizontally and have a peak to peak variation 0.5? at most.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationSefer, A. & Yapar, A. (2022). Inverse scattering by perfectly electric conducting (PEC) rough surfaces: an equivalent model with line sources. IEEE Transactions on Geoscience and Remote Sensing, 60,1-9. doi:10.1109/TGRS.2022.3210657en_US
dc.identifier.doi10.1109/TGRS.2022.3210657
dc.identifier.endpage9
dc.identifier.issn0196-2892
dc.identifier.issn1558-0644
dc.identifier.scopus2-s2.0-85139509037
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/11729/5094
dc.identifier.urihttp://dx.doi.org/10.1109/TGRS.2022.3210657
dc.identifier.volume60
dc.identifier.wosWOS:000868322200003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorSefer, Ahmeten_US
dc.institutionauthorid0000-0001-5168-4367
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.relation.ispartofIEEE Transactions on Geoscience and Remote Sensingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEquivalent line sourceen_US
dc.subjectInverse electromagnetic scatteringen_US
dc.subjectNewton methoden_US
dc.subjectRough surface reconstructionen_US
dc.subjectCircular waveguidesen_US
dc.subjectElectric conductanceen_US
dc.subjectElectric fieldsen_US
dc.subjectElectric linesen_US
dc.subjectElectromagnetic wave scatteringen_US
dc.subjectInverse problemsen_US
dc.subjectNewton-Raphson methoden_US
dc.subjectSurface measurementen_US
dc.subjectSurface reconstructionen_US
dc.subjectSurface scatteringen_US
dc.subjectEquivalent lineen_US
dc.subjectInverse electromagnetic scatteringsen_US
dc.subjectLine sourcesen_US
dc.subjectNewton's methodsen_US
dc.subjectPerfectly electric conductingen_US
dc.subjectRough surfacesen_US
dc.subjectSurface profilesen_US
dc.subjectSurfaces reconstructionen_US
dc.subjectElectromagnetic wavesen_US
dc.subjectInverse scatteringen_US
dc.subjectInversionen_US
dc.subjectCompressive sensingen_US
dc.subjectReconstructionen_US
dc.titleInverse scattering by perfectly electric conducting (PEC) rough surfaces: an equivalent model with line sourcesen_US
dc.typeArticleen_US

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