Calibration of directional mutual coupling for antenna arrays

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dc.contributor.authorElbir, Ahmet Musab
dc.date.accessioned2020-04-30T22:40:26Z
dc.date.available2020-04-30T22:40:26Z
dc.date.issued2017
dc.departmentDÜ, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.descriptionElbir, Ahmet M./0000-0003-4060-3781en_US
dc.descriptionWOS: 000409151900012en_US
dc.description.abstractMutual coupling (MC) is one of the major error sources in array signal processing. The previous methods mostly assume that the MC is direction-independent and it is modeled by a single MC matrix. However, this is not valid in a practical scenario where the effect of MC differs for the source signals incoming from different directions. In this paper, calibration of directional MC is considered for direction-of-arrival (DOA) estimation problem. An alternating and sectorized parameter estimation (ASPE) algorithm is proposed where the estimates of the source DOA angles and the MC coefficients corresponding to each source direction are found iteratively. A unified approach is introduced so that the proposed algorithm can effectively work for different array geometries regardless of the array geometry and the corresponding MC matrix model. The performance of the proposed method is evaluated by several experiments and it is compared with the conventional calibration techniques as well as the Cramer-Rao lower Bound which is derived for the considered problem. It is shown that the proposed method effectively finds the unknown source and coupling parameters and it has superior performance as compared to the conventional calibration techniques. (C) 2017 Elsevier Inc. All rights reserved.en_US
dc.identifier.doi10.1016/j.dsp.2017.06.021en_US
dc.identifier.endpage126en_US
dc.identifier.issn1051-2004
dc.identifier.issn1095-4333
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage117en_US
dc.identifier.urihttps://doi.org/10.1016/j.dsp.2017.06.021
dc.identifier.urihttps://hdl.handle.net/20.500.12684/2982
dc.identifier.volume69en_US
dc.identifier.wosWOS:000409151900012en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAcademic Press Inc Elsevier Scienceen_US
dc.relation.ispartofDigital Signal Processingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectArray calibrationen_US
dc.subjectDOA estimationen_US
dc.subjectDirectional mutual couplingen_US
dc.subjectDirection-dependenten_US
dc.subjectArbitrary arraysen_US
dc.titleCalibration of directional mutual coupling for antenna arraysen_US
dc.typeArticleen_US

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