Radar antenna selection for direction-of-arrival estimations

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buir.contributor.authorAtalik, Arda
buir.contributor.authorYılmaz, Mustafa
buir.contributor.authorArıkan, Orhan
buir.contributor.orcidAtalik, Arda|0000-0003-3439-7838
buir.contributor.orcidArıkan, Orhan|0000-0002-3698-8888
dc.citation.epage6en_US
dc.citation.spage1en_US
dc.contributor.authorAtalik, Arda
dc.contributor.authorYılmaz, Mustafa
dc.contributor.authorArıkan, Orhan
dc.coverage.spatialAtlanta, GA, USAen_US
dc.date.accessioned2022-01-31T06:49:23Z
dc.date.available2022-01-31T06:49:23Z
dc.date.issued2021-06-18
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionConference Name: 2021 IEEE Radar Conference (RadarConf21)en_US
dc.descriptionDate of Conference: 7-14 May 2021en_US
dc.description.abstractMulti-antenna radars exhibit positively correlated detection performance with the number of elements utilized. The feasibility of refining antenna arrays to reduce cost of operation with only marginal loss of performance has attracted significant attention as utilizing a large number of elements may be prohibitively costly in terms of computation and power. Under cognitive radar paradigm, the goal is to choose an optimal or near optimal subset of elements from an antenna array of pre-specified geometry while meeting certain performance and cost criteria. In this work, we present optimization based selection methods for certain array geometries to select the best K element sub-array in terms of Cramér-Rao lower bound (CRB) on direction-of- arrival (DoA) estimations. Our results indicate that it is possible to reduce K up to a certain point without significant reduction in DoA estimation performance. The maximum possible reduction in K depends on the operating signal-to-noise ratio (SNR) and how much performance loss is tolerated. Thus, once the operating SNR is known, it is possible to utilize fewer array elements with slight decrease in performance.en_US
dc.identifier.doi10.1109/RadarConf2147009.2021.9455268en_US
dc.identifier.eisbn978-1-7281-7609-3
dc.identifier.eissn2375-5318
dc.identifier.isbn978-1-7281-7610-9
dc.identifier.issn1097-5659
dc.identifier.urihttp://hdl.handle.net/11693/76897
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttps://dx.doi.org/10.1109/RadarConf2147009.2021.9455268en_US
dc.source.titleIEEE National Conference on Radar
dc.subjectAntenna selectionen_US
dc.subjectCognitive radaren_US
dc.subjectDirection-of arrival estimationsen_US
dc.titleRadar antenna selection for direction-of-arrival estimationsen_US
dc.typeConference Paperen_US
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