MIMO radar: an idea whose time has come

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI:10.1109/NRC.2004.1316398

E. Fishler, A. Haimovich, Rick S. Blum, Len Cimini, D. Chizhik, R. Valenzuela

{"title":"MIMO radar: an idea whose time has come","authors":"E. Fishler, A. Haimovich, Rick S. Blum, Len Cimini, D. Chizhik, R. Valenzuela","doi":"10.1109/NRC.2004.1316398","DOIUrl":null,"url":null,"abstract":"It has recently been shown that multiple-input multiple-output (MIMO) antenna systems have the potential to improve dramatically the performance of communication systems over single antenna systems. Unlike beamforming, which presumes a high correlation between signals either transmitted or received by an array, the MIMO concept exploits the independence between signals at the array elements. In conventional radar, target scintillations are regarded as a nuisance parameter that degrades radar performance. The novelty of MIMO radar is that it takes the opposite view; namely, it capitalizes on target scintillations to improve the radar's performance. We introduce the MIMO concept for radar. The MIMO radar system under consideration consists of a transmit array with widely-spaced elements such that each views a different aspect of the target. The array at the receiver is a conventional array used for direction finding (DF). The system performance analysis is carried out in terms of the Cramer-Rao bound of the mean-square error in estimating the target direction. It is shown that MIMO radar leads to significant performance improvement in DF accuracy.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1472","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NRC.2004.1316398","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1472

Abstract

It has recently been shown that multiple-input multiple-output (MIMO) antenna systems have the potential to improve dramatically the performance of communication systems over single antenna systems. Unlike beamforming, which presumes a high correlation between signals either transmitted or received by an array, the MIMO concept exploits the independence between signals at the array elements. In conventional radar, target scintillations are regarded as a nuisance parameter that degrades radar performance. The novelty of MIMO radar is that it takes the opposite view; namely, it capitalizes on target scintillations to improve the radar's performance. We introduce the MIMO concept for radar. The MIMO radar system under consideration consists of a transmit array with widely-spaced elements such that each views a different aspect of the target. The array at the receiver is a conventional array used for direction finding (DF). The system performance analysis is carried out in terms of the Cramer-Rao bound of the mean-square error in estimating the target direction. It is shown that MIMO radar leads to significant performance improvement in DF accuracy.

查看原文本刊更多论文

MIMO雷达:一个时代已经到来的想法

最近有研究表明，与单天线系统相比，多输入多输出(MIMO)天线系统具有显著提高通信系统性能的潜力。与波束形成不同，波束形成假定阵列发射或接收的信号之间具有高度相关性，而MIMO概念利用了阵列元素上信号之间的独立性。在传统雷达中，目标闪烁被认为是影响雷达性能的有害参数。MIMO雷达的新颖之处在于它采取了相反的观点;也就是说，它利用目标闪烁来提高雷达的性能。我们介绍雷达的MIMO概念。所考虑的MIMO雷达系统由具有宽间距元件的发射阵列组成，使得每个元件都能观察目标的不同方面。接收机上的阵列是用于测向(DF)的传统阵列。根据估计目标方向时均方误差的Cramer-Rao界对系统性能进行了分析。结果表明，MIMO雷达在DF精度方面有显著的性能提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)

自引率

0.00%

发文量