干扰波达角快速变化下自适应阵列天线抗干扰效能评估  

Anti-Interference Effectiveness Evaluation of Adaptive Array Antenna Under Rapid Change of Jamming Arrival Angle

作　　者：肖诗靖 李斌[1] 王青 XIAO Shijing;LI Bin;WANG Qing(National Key Lab of Science and Technology on Vessel Integrated Power System,Naval University of Engineering,Wuhan 430000,China)

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,武汉430000

出　　处：《电子信息对抗技术》2023年第4期13-17,共5页Electronic Information Warfare Technology

摘　　要：电子系统抗干扰效能评估是进行作战指挥部署的重要前提,对应用阵列天线的电子系统,其难点在于如何量化阵列天线抗干扰效能的强弱并确定抗干扰的有效区与失效区。对干扰方程进行修正,推导了干扰波达角快速变化时阵列天线的干扰方程。提出了一种干扰波达角高速变化场景下的自适应阵列抗干扰效能评估方法,用于区分阵列天线接收机的抗干扰有效区与失效区。仿真结果表明,不同于干扰波达角静止的理想环境,自适应阵列天线的抗干扰效能因干扰移出自适应波束的零陷而急剧恶化。提出的方法量化了阵列天线接收机抗干扰有效区与失效区的范围,有效评估了阵列天线的抗干扰效能,有利于保障战场信息的实时互联互通。Anti-jamming effectiveness evaluation of electronic systems is an important prerequisite for combat command deployment.For electronic systems applying array antennas,the difficulty lies in how to quantify the strength of the anti-jamming effectiveness of array antennas and determine the effective and failure zones of anti-jamming.The interference equation is modified.The interference equation of array antenna is derived when the angle of arrival of interference wave changes rapidly.An evaluation method of adaptive array anti-jamming effectiveness under the scenario of high-speed change of interference angle of arrival is proposed,which is used to distinguish the effective zone and the failure zone of the anti-jamming of the array antenna.The simulation results show that,different from the ideal environment where the interference angle of arrival is stationary,the anti-interference effectiveness of the adaptive array deteriorates sharply due to the interference moving out of the null of the adaptive beam.The method quantifies the range of the effective and failure zones of the array antenna and effectively evaluates the anti-interference effectiveness of the array,which strongly guarantees the real-time interconnection of battlefield information.

关 键 词：抗干扰效能评估 阵列波束形成 干扰压制系数 干扰方程 干扰压制距离 

分 类 号：TN973.3[电子电信—信号与信息处理]