自适应阵列智能天线抗干扰性能研究  

Research on anti-jam performance of adaptive array smart antennas

作　　者：张爱民[1] 王星全[1] 

机构地区：[1]总参谋部通信训练基地,河北宣化075100

出　　处：《电子技术应用》2012年第1期94-96,共3页Application of Electronic Technique

摘　　要：分析了自适应阵列智能天线的基本原理,给出了基于复数LMS算法的自适应阵列智能天线波束形成方法,同时对该智能天线抗干扰性能进行了Matlab仿真,理论分析和仿真结果表明:自适应阵列智能天线阵能够实时地调整天线方向,使天线的主波束对准期望信号方向,零陷对准干扰方向从而抑制干扰信号,在干扰和低信噪比环境下,接收端使用智能天线可以大大降低误码率,该智能天线具有较强的抗干扰性能。The principal of adaptive array smart antennas has been analyzed in this paper, the method of beam forming based on complex LMS algorithm of the adaptive array smart antennas is given, and simulation on performance of interference suppression has been performed by Matlab. Theory analysis and simulation result show that adaptive array smart antennas has the function of controlling the direction of the array real-timely, it can make the main beam of antennas array point to the direction of the expected signal and the null point to the direction of the interfering signal. The bit error rate of receiving is significantly reduced by using the smart antenna technology under interfering and low SNR circumstance, this smart antennas has the better performance of interference suppression.

关 键 词：自适应阵列 智能天线 复数LMS算法 抗干扰 

分 类 号：TN911.7[电子电信—通信与信息系统]