Uniform and nonuniform V‐shaped planar arrays for 2‐D direction‐of‐arrival estimation
作者： T. Filik , T. E. Tuncer
DOI: 10.1029/2008RS003949
关键词: Isotropy 、 Physics 、 Coupling effect 、 Direction of arrival 、 Telecommunications 、 Planar 、 Circular buffer 、 Acoustics 、 Azimuth 、 Robustness (computer science)
摘要: [1] In this paper, isotropic and directional uniform nonuniform V-shaped arrays are considered for azimuth elevation direction-of-arrival (DOA) angle estimation simultaneously. It is shown that the (UI V arrays) have no coupling between DOA. The design of UI investigated, closed form expressions presented parameters arrays. These allow one to find different array types. DOA performance compared with circular (UCA) correlated signals in case mutual elements. modeling error sensor positions also investigated. similar robustness position errors while better than UCA source when there coupling. Nonuniform investigated which good limited number sensors. Furthermore, a new method proposed. This based on Cramer-Rao Bound joint where effect angles taken into account. finds an optimum linear subarrays array. proposed can be used obtain significantly performance.
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