Browsing by Author "Kitavi, Dominic Makaa"

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    Aperture Maximization with Half-Wavelength Spacing, via a 2-Circle Concentric Array Geometry that is Uniform but Sparse
    (Journal of Advances in Mathematics and Computer Science, 2019-05-25) Kinyili, Musyoka; Kitavi, Dominic Makaa; Ngari, Cyrus Gitonga
    This 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.
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    Staff Profile - Dr. Dominic Makaa Kitavi
    (UoEm, 2020-09-28) Kitavi, Dominic Makaa
    Dr. D. M. Kitavi hold PhD in Statistical Signal Processing in 2017 from the Hong Kong Polytechnic University (Hong Kong), M.Sc. (cum laude) in Mathematical Sciences in 2013 from University of the Western Cape (South Africa), and B.Sc. (first-class honors) in Mathematics in 2011 from the University of Nairobi (Kenya). Research interest in Partial Differential Equations and Statistical Signal Processing.