Performance Evaluation of Wideband Microwave Direction-of-Arrival Estimation Using Luneburg Lens

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2017-07-06 DOI:10.1109/LAWP.2017.2723895

Xiaoju Yu;Min Liang;Hao Xin

引用次数: 7

Abstract

In this letter, a wideband passive direction-finding (DF) system utilizing Luneburg lens is investigated. A number of detectors are placed uniformly on the surface of the equatorial plane of the Luneburg lens. Based on the received signal amplitude distribution at the detectors, the direction of arrival (DoA) is estimated using the correlation method. The root mean square errors (RMSEs) of the DoA estimation are calculated for various lens sizes, signal-to-noise ratios, and number of detectors within the frequency band from 9 to 11 GHz. To examine the proposed DF system performance, the Cramér-Rao bound on the RMSEs of the DoA estimation is derived and compared to the simulated RMSEs using the correlation method.

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利用Luneburg透镜进行宽带微波到达方向估计的性能评估

本文研究了一种利用吕讷堡透镜的宽带无源测向系统。许多探测器均匀地放置在吕讷堡透镜赤道平面的表面上。基于检测器处的接收信号幅度分布，使用相关方法来估计到达方向（DoA）。DoA估计的均方根误差（RMSE）是针对9至11GHz频带内的各种透镜尺寸、信噪比和检测器数量计算的。为了检验所提出的测向系统性能，推导了DoA估计的RMSE上的Cramér-Rao界，并将其与使用相关方法模拟的RMSE进行了比较。

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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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.