A 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.
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Date
2021-06
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract
Azimuthal 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.
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abstract
Keywords
Sensor arrays, Acoustic arrays, Sensors, Array signal processing, Microphone arrays, Data models, Manifolds
Citation
IEEE Transactions on Aerospace and Electronic Systems ( Volume: 57, Issue: 3, June 2021)