Direction of arrival estimation using Luneburg lens

M. Liang, Xiaoju Yu, Rafael Sabory-Garcia, W. Ng, M. Gehm, H. Xin
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引用次数: 13

Abstract

In this paper, a 3-D Luneburg Lens is employed for direction finding application. Using the special property of a Luneburg lens that every point on the surface of the Lens is the focal point of a plane wave incident from the opposite side, a number of detectors are mounted around the surface of the lens to estimate the direction of arrival (DOA) of a microwave signal. To demonstrate the proposed direction finding system, a Luneburg lens with five detectors mounted on its surface to receive the signal from −20° to 20° is measured at 5.6 GHz. The initial direction finding results using a correlation algorithm show that the estimated error is smaller than 2° within −15° to 15° incident angles.
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用鲁讷堡透镜估计到达方向
本文采用三维鲁讷堡透镜进行测向应用。利用鲁讷堡透镜的特殊性质,即透镜表面的每个点都是从另一侧入射的平面波的焦点,在透镜表面周围安装了许多探测器来估计微波信号的到达方向(DOA)。为了演示所提出的测向系统,在5.6 GHz的频率下测量了一个表面安装有五个探测器的Luneburg透镜,以接收−20°到20°的信号。采用相关算法的初始测向结果表明,在- 15°~ 15°入射角范围内,估计误差小于2°。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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