Joint Estimation of Direction and Polarization for Partially Polarized Signals Using Tri-polarized Nested Array

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dc.contributor.authorPan, Yujian
dc.contributor.authorGao, Xiaoxin
dc.contributor.authorXu, Xin
dc.coverage.issue1cs
dc.coverage.volume31cs
dc.date.accessioned2022-04-29T07:44:21Z
dc.date.available2022-04-29T07:44:21Z
dc.date.issued2022-04cs
dc.description.abstractUsing the dual-polarized array for underdetermined estimation of partially polarized (PP) signal parameters can lead to limited signal-to-ratio (SNR) and biased reconstruction of the coherency matrix. In this paper, a new non-iterative method is proposed with the tri-polarized nested array. With the sub-covariance addition, the power of different polarized components of a signal can be completely accumulated, which improves the SNR. Besides, it is proven that with the optimized tri-polarized nested array, noise variance estimation without iterations becomes possible in the underdetermined case, which is critical for unbiased coherency matrix reconstruction. The subspace-based method is adopted to estimate the direction-of-arrival (DOA), and the polarization parameters can be obtained based on the reconstructed coherency matrices. The proposed method is validated by numerical experiments and compared with other representative methods. It has relatively high accuracy and is about one order of magnitude faster than its competitor.en
dc.formattextcs
dc.format.extent104-113cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2022 vol. 31, č. 1, s. 104-113. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2022.0104en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/204138
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2022/22_01_0104_0113.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectDirection-of-arrival estimationen
dc.subjectnested arrayen
dc.subjectpolarization estimationen
dc.subjectpartially polarized signalen
dc.subjecttri-polarized sensoren
dc.titleJoint Estimation of Direction and Polarization for Partially Polarized Signals Using Tri-polarized Nested Arrayen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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