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dc.contributor.authorKinyili, Musyoka
dc.contributor.authorKitavi, Dominic M.
dc.contributor.authorNgari, Cyrus G.
dc.date.accessioned2019-06-06T12:07:06Z
dc.date.available2019-06-06T12:07:06Z
dc.date.issued2019-05
dc.identifier.citationJournal of Advances in Mathematics and Computer Science 32(3): 1-20,en_US
dc.identifier.issn2456-9968
dc.identifier.urihttp://repository.embuni.ac.ke/handle/embuni/2166
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 o ers 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 nding of the proposed array grid over a single ring array geometry termed as uniform circular array (UCA) is hereby analytically veri ed 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.language.isoenen_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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