{"title":"Performance Evaluation of Wideband Microwave Direction-of-Arrival Estimation Using Luneburg Lens","authors":"Xiaoju Yu;Min Liang;Hao Xin","doi":"10.1109/LAWP.2017.2723895","DOIUrl":null,"url":null,"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.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"16 ","pages":"2453-2456"},"PeriodicalIF":3.7000,"publicationDate":"2017-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/LAWP.2017.2723895","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Wireless Propagation Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/7970098/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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.
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.
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