阵列雷达近场方向图误差特性分析  

Analysis of Error Characteristics of Array Radar Near-field Beampattern

作　　者：何勤 程子扬 王志航 何子述 HE Qin;CHENG Ziyang;WANG Zhihang;HE Zishu(School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]电子科技大学信息与通信工程学院,月成都611731

出　　处：《现代雷达》2022年第11期61-66,共6页Modern Radar

摘　　要：文中基于近场阵列理论模型,研究通道误差和阵元位置误差对信号空域滤波性能造成的影响。首先,基于近场天线阵列信号模型对两种误差进行建模,从统计学角度推导出了输出波束差的一阶和二阶统计量的理论上限;然后,给出蒙特卡洛实验曲线和理论上限曲线,并作对比。误差波束仿真实例验证了给出的理论上限的可行性,对工程应用有一定的指导意义。Based on the near-field array theoretical model, the effect of channel error and sensor position error on the signal’s spatial filtering performance is studied. Firstly, based on the near-field attenna array signal model, two kinds of errors are modeled, and the theoretical upper bounds of the first-order and second-order statistics of the output beam difference are derived from a statistical point of view. Then, Monte Carlo experimental curve and theoretical upper limit curve are given and compared. The simulation results of the beam with error feasibility of the theoretical upper limit, showing a certain guiding significance for engineering applications.

关 键 词：通道误差 阵元位置误差 统计特性 近场波束形成 

分 类 号：TN820[电子电信—信息与通信工程]