A multi-frequency iterative method for reconstruction of rough surfaces separating two penetrable media

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dc.authorid0000-0001-5168-4367
dc.authorid0000-0003-2966-5623
dc.authorid0000-0003-3867-5786
dc.contributor.authorSefer, Ahmeten_US
dc.contributor.authorYapar, Alien_US
dc.contributor.authorBağcı, Hakanen_US
dc.date.accessioned2025-08-22T11:05:28Z
dc.date.available2025-08-22T11:05:28Z
dc.date.issued2024-12-18
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-Electronics Engineeringen_US
dc.description.abstractA numerical scheme that uses multi-frequency Newton iterations to reconstruct a rough surface profile between two dielectric media is proposed. At each frequency sample, the scheme employs Newton iterations to solve the nonlinear inverse scattering problem. At every iteration, the Newton step is computed by solving a linear system that involves the Frechet derivative of the integral operator, which represents the scattered fields, and the difference between these fields and the measurements. This linear system is regularized using the Tikhonov method. The multi-frequency data is accounted for in a recursive manner. More specifically, the profile reconstructed at a given frequency is used as an initial guess for the iterations at the next frequency. The effectiveness of the proposed method is validated through numerical examples, which demonstrate its ability to accurately reconstruct surface profiles even in the presence of measurement noise. The results also show the superiority of the multi-frequency approach over single-frequency reconstructions, particularly in terms of handling surfaces with sharp variations.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationSefer, A., Yapar, A. & Bağcı, H. (2024). A multi-frequency iterative method for reconstruction of rough surfaces separating two penetrable media. IEEE Access, 12, 192946-192957. doi:10.1109/ACCESS.2024.3517707en_US
dc.identifier.doi10.1109/ACCESS.2024.3517707
dc.identifier.endpage192957
dc.identifier.issn2169-3536
dc.identifier.scopus2-s2.0-85212607591
dc.identifier.scopusqualityQ1
dc.identifier.startpage192946
dc.identifier.urihttps://hdl.handle.net/11729/6645
dc.identifier.urihttps://doi.org/10.1109/ACCESS.2024.3517707
dc.identifier.volume12
dc.identifier.wosWOS:001383065500033
dc.identifier.wosqualityQ2
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakWeb of Scienceen_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 Accessen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectInverse scattering problemsen_US
dc.subjectMulti-frequency algorithmen_US
dc.subjectNewton iterative methoden_US
dc.subjectRough surface reconstructionen_US
dc.subjectSurface integral equationsen_US
dc.subjectChoquet integralen_US
dc.subjectIntegral equationsen_US
dc.subjectInterpolationen_US
dc.subjectInverse problemsen_US
dc.subjectLinear systemsen_US
dc.subjectNewton-Raphson methoden_US
dc.subjectSurface analysisen_US
dc.subjectSurface reconstructionen_US
dc.subjectSurface roughnessen_US
dc.subjectFrequency algorithmsen_US
dc.subjectMulti frequencyen_US
dc.subjectNewton's iterationen_US
dc.subjectRough surfacesen_US
dc.subjectNumerical methodsen_US
dc.subjectIntegral-equation methoden_US
dc.subjectInverse-scatteringen_US
dc.subjectForward-backwarden_US
dc.subjectAlgorithmen_US
dc.subjectSimulationsen_US
dc.subjectComponentsen_US
dc.titleA multi-frequency iterative method for reconstruction of rough surfaces separating two penetrable mediaen_US
dc.typeArticleen_US
dspace.entity.typePublicationen_US

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