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天线互耦和激励对MIMO-OFDM系统抗干扰性能的影响

The Influence of Antenna Coupling and Excitation of Anti-jamming Performance in MIMO-OFDM Systems
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摘要 在简介MIMO-OFDM系统基本原理的基础上,讨论天线单元的耦合和激励对MIMO-OFDM系统抗干扰性能的影响。采用MVDR波束形成算法,通过仿真例子可以看出,当天线单元实际存在互耦和激励误差时天线的抗干扰性能较理想情况会有所下降,表明要充分保持MIMO-OFDM的抗干扰性能需要考虑互耦效应和激励误差。 Anti - jamming performance in MIMO - OFDM system is investigated when mutual coupling and excitation errors exist. MVDR algorithm is adopted in the simulation. An example is given in the paper and it is shown from the simulation that when antenna coupling and excitation errors exist, the anti- jamming performance will descend comparing the ideal environment. So the antenna coupling and excitation errors should be considered to improve the system performance.
作者 赵福玲 吕善伟 余琴 党群
机构地区 北京航空航天大学电子信息工程学院
出处 《宇航计测技术》 CSCD 2006年第1期12-15,共4页 Journal of Astronautic Metrology and Measurement
基金 国家自然科学基金资助课题(No.60271012)
关键词 ^+多输入多输出正交频分复用 耦合 激励 抗干扰 ＋ MIMO- OFDM Coupling Excitation Anti - jamming
分类号 TN914 [电子电信—通信与信息系统]
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宇航计测技术
2006年 第1期

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