Null Broadening Robust Beamforming Based on Decomposition and Iterative Second-order Cone Programming

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dc.contributor.authorJin, Wei
dc.contributor.authorGuo, Yunzhou
dc.contributor.authorJia, Weimin
dc.contributor.authorZhao, Jianwei
dc.coverage.issue4cs
dc.coverage.volume30cs
dc.date.accessioned2021-12-13T09:46:53Z
dc.date.available2021-12-13T09:46:53Z
dc.date.issued2021-12cs
dc.description.abstractTo solve the problem that the performance of adaptive beamformer degrades severely in the presence of steering vector mismatch or non-stationary interference, a null broadening robust beamforming based on decomposition and iterative second-order cone programming (SOCP) is proposed. The width and depth of the nulls is controlled. The magnitude response constraints are applied to control the beamwidth and ripple of mainlobe, so the SV mismatch can be overcame. Due to the decomposition of the non-convex magnitude response constraints, the proposed approach can be solved by decomposition and iterative SOCP. Simulation results show that the proposed approach can effectively broaden the null width and enhance the null depth, and it is also robust against SV mismatch, especially large SV mismatch. The proposed approach is jointly robust against the SV mismatch and non-stationary interference, and is still effective in the case of low snapshot, which enhances the robustness of adaptive beamformer in complex environments.en
dc.formattextcs
dc.format.extent680-687cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2021 vol. 30, č. 4, s. 680-687. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2021.0680en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/203175
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2021/21_04_0680_0687.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectRobust adaptive beamformingen
dc.subjectnull broadeningen
dc.subjectmagnitude response constraintsen
dc.subjectsecond-order cone programmingen
dc.subjectjoint robustnessen
dc.titleNull Broadening Robust Beamforming Based on Decomposition and Iterative Second-order Cone Programmingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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