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基于电磁矢量传感器的MIMO天线阵列系统研究
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(完整内容请下载后查看)第34 卷第5 期
2013 年5 月
通 信 学 报
Journal on Communications
Vol.34 No. 5
May 2013
doi:10.3969/j.issn.1000-436x.2013.05.001
基于电磁矢量传感器的MIMO 天线阵列系统研究
周杰 1,2,邱琳 1,菊池久和 2
(1. 南京信息工程大学 电子与信息工程学院,江苏 南京 210044;2. 日本国立新泻大学 工学部电气电子工学科,新泻 950-2181)
摘 要:将电磁矢量传感器(EVS, electromagnetic vetor sensor)信号处理法与传统MIMO 信号处理有机地结合,建
立了基于EVS 的多天线三维信道模型。采用多重信号分类(MUSIC, multiple signal classification)算法对MIMO 的
达波信号方向(DOA, direction of arrival)进行空间谱估计,导出基于EVS 的三维空间信道解析式,阐明了EVS 信
号处理与MIMO 多径信道相关性的关系。与传统标量传感器阵列(SSA, scalar sensor array)MIMO 天线阵列比较,
EVS 阵列能获取达波信号的多维极化信息,同时具有空间域和极化信号处理能力。因此可缓解空间多径信道相关
性,使空间极化分量的相关性趋于零值,而且使MIMO 系统性能受空间结构的影响较小。理论分析和仿真结果表
明在提高MIMO 天线系统性能上,基于EVS 阵列的系统比SSA 系统具有更高的优越性。
关键词:MIMO 阵列天线;标量传感器阵列;电磁矢量传感器;空间谱估计;信道容量
中图分类号:TN911.6
文献标识码:A
文章编号:1000-436X(2013)05-0001-11
Analysis of MIMO antenna array based on
electromagnetic vector sensor
ZHOU Jie1, 2, QIU Lin1, HISAKAZU Kikuchi2
(1. College of Electronic & Information Engineering,Nanjing University of Information Science and Technology, Nanjing 210044, China;
2. Department of Electronic and Electrical Engineering,Niigata University, Niigata 950-2181, Japan)
Abstract: EVS(electromagnetic vetor sensor) signal processing method was combined with traditional MIMO signal
processing method and three-dimensional channel model of multi-antenna array was set up. The algorithm of multiple
signal classification (MUSIC) was adopted to make spatial spectrum estimation for direction of arrival (DOA) signal,
analytical expressions of three-dimensional spatial channel was derived base on EVS for MIMO receiver system and the
relationship between EVS signal processing and MIMO multipath channel correlation was clarified. To compare with tra-
ditional MIMO antenna array, EVS array possesses abilities of obtaining multidimensional polarization information,
processing spatial and polarization domain for arrival signal and degrading effects of spatial factors on MIMO channel
capacity. Theoretical analysis and simulation results indicate that EVS array provide more advantages than traditional
scalar sensor array on enhancing MIMO system performance.
Key words: MIMO antenna array; scalar sensor array; electromagnetic vector sensor; spatial spectrum estimation; chan-
nel capacity
收稿日期:2012-07-20;修回日期:2012-10-07
基金项目:国家自然科学基金资助项目(61072137);科技部公益性行业科研专项基金资助项目(GYHY200906053);江苏
省科技支撑计划(工业)基金资助项目(BE2011298);江苏省高校自然科学研究计划基金资助项目(08KJB510009);教育
部留学回国人员科研基金资助项目(教外司留20071108);江苏省六大人才高峰基金资助项目(2008-118);江苏省博士后基
金资助项目(2011-11-010986678)
Foundation Items: The National Natural Science Foundation of China (61072137); The National Department Public Benefit Re-
search Foundation (GYHY200906053); Scientific & Technological Support Project(Industry) of Jiangsu Province(BE2011298); Ji-
angsu Provincial Research Scheme of Natural Science for Higher Education Institute(08KJB510009); The Scientific Research Foun-
dation for the Returned Overseas Chinese Scholars, State Education Ministry (20071108); The Six Kinds of Jiangsu Prov-
ince(2008-118); Jiangsu Province Postdoctoral Science Foundation (2011-11-010986678)
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