一种频控阵鉴别距离欺骗目标方法的优化  

Optimization of a Method for Identifying Range Deception Target with Frequency

作　　者：严济鸿 王顺祥 居宇欢 罗珏麟 冯旭 肖景槐 YAN Jihong;WANG Shunxiang;JU Yuhuan;LUO Juelin;FENG Xu;XIAO Jinghuai(Yangtze Delta Region Institute(Quzhou),University of Electronic Science and Technology of China,Quzhou 324000,China;School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]电子科技大学长三角研究院(衢州),浙江衢州324000 [2]电子科技大学信息与通信工程学院,四川成都611731

出　　处：《雷达科学与技术》2023年第2期215-221,230,共8页Radar Science and Technology

基　　金：衢州市财政资助科研项目(No.2021D009)。

摘　　要：针对一种雷达使用频控阵模式发射信号、相控阵模式接收信号的距离欺骗目标鉴别方法存在的不足,使用了一种干扰置零方法,使频控阵发射波束主瓣对准需鉴别目标位置处时其他待鉴别目标位于频控阵发射方向图的零陷上,避免了待鉴别目标若位于频控阵发射方向图较高旁瓣上时仍能使雷达收到其反射信号从而形成干扰的问题。针对常规频控阵方向图存在的距离⁃角度耦合问题,使用遗传算法对方向图进行优化,得到了具有更高分辨率的点状波束。将点状波束和干扰置零方法应用于距离假目标鉴别。计算机仿真结果表明本文的方法具有良好的假目标鉴别效果。A jamming nulling method is studied in this paper aiming at the shortcoming of a range deception target identification method with the radar.The radar in this paper adopts the frequency diverse array transmitting mode and the phased⁃array receiving mode.When the main lobe of the transmitting beam of the frequency diverse array is aligned with the location of the target to be identified,the null is pointed to other potential targets’location.The problem that the reflected signals from other potential targets can still be received by the radar when they are located on some high sidelobes of the FDA transmitting beam pattern is solved.Aiming at the distance⁃angle coupling problem existed in the conventional frequency diverse array antenna pattern,the genetic algorithm is used to optimize the antenna pattern.A point beam with higher resolution is obtained.Meanwhile the point beam and the jamming nulling method are applied to the range deception target identification.The computer simulation results show that the proposed method has a good effect on range deception target identification.

关 键 词：频控阵 距离欺骗目标鉴别 干扰置零 方向图优化 点状波束 

分 类 号：TN958.5[电子电信—信号与信息处理]