A Centrosymmetric Array Comprising a Horizontal Uniform Circular Subarray and a Vertical Uniform Linear Subarray—Its Design in Reference to Its Direction-Finding Cramér

Lin, YangWong, Kainam ThomasZakayo, Ndiku Morris2022-02-082022-02-082021-06IEEE Transactions on Aerospace and Electronic Systems ( Volume: 57, Issue: 3, June 2021)DOI: 10.1109/TAES.2020.3046089http://repository.embuni.ac.ke/handle/embuni/3976abstractAzimuthal centrosymmetry in an array grid is typically associated with arrays that are circular, concentric, cylindrical, spherical, or hemispherical. However, a recently proposed alternative combines an azimuthal circular array with a linear vertical array. For this elegantly simple new array grid's use in the direction-of-arrival estimation, this article advances array-design insights to meet a given estimation-precision threshold, by examining the tradeoff between the azimuth-angle Cramér-Rao bound vis-a-vis the polar-angle Cramér-Rao bound in a proposed two-step design procedure.enSensor arraysAcoustic arraysSensorsArray signal processingMicrophone arraysData modelsManifoldsA Centrosymmetric Array Comprising a Horizontal Uniform Circular Subarray and a Vertical Uniform Linear Subarray—Its Design in Reference to Its Direction-Finding Cramér–Rao Bound.Article