Aperture Maximization with Half-Wavelength Spacing, via a 2-Circle Concentric Array Geometry that is Uniform but Sparse

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dc.contributor.authorKinyili, Musyoka
dc.contributor.authorKitavi, Dominic Makaa
dc.contributor.authorNgari, Cyrus Gitonga
dc.date.accessioned2022-02-04T10:56:59Z
dc.date.available2022-02-04T10:56:59Z
dc.date.issued2019-05-25
dc.descriptionArticleen_US
dc.description.abstractThis paper proposes a new sensor-array geometry (the 2-circle concentric array geometry), that maximizes the array’s spatial aperture mainly for bivariate azimuth-polar resolution of direction-of-arrival estimation problem. The proposed geometry provides almost invariant azimuth angle coverage and offers the advantage of full rotational symmetry (circular invariance) while maintaining an inter-sensor spacing of only an half wavelength (for non-ambiguity with respect to the Cartesian direction cosines). A better-accurate performance in direction finding of the proposed array grid over a single ring array geometry termed as uniform circular array (UCA) is hereby analytically verified via Cram´er-Rao bound analysis. Further, the authors demonstrate that the proposed sensor-array geometry has better estimation accuracy than a single ring array.en_US
dc.identifier.citation32(3): 1-20, 2019; Article no.JAMCS.47041en_US
dc.identifier.uriDOI: 10.9734/JAMCS/2019/v32i330148
dc.identifier.urihttp://repository.embuni.ac.ke/handle/embuni/3961
dc.language.isoenen_US
dc.publisherJournal of Advances in Mathematics and Computer Scienceen_US
dc.subjectAntenna arraysen_US
dc.subjectArray signal processingen_US
dc.subjectDirection-of-arrival estimationen_US
dc.subjectParameter estimationen_US
dc.subjectPlanar circular arraysen_US
dc.titleAperture Maximization with Half-Wavelength Spacing, via a 2-Circle Concentric Array Geometry that is Uniform but Sparseen_US
dc.typeArticleen_US
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