两源交叉眼与多源线阵交叉眼的干扰性能分析  

Interference Performance Analysis of Two Source Retro-Directive Cross-Eye Jamming and Multi-Source Linear Array Retro-Directive Cross-Eye Jamming

作　　者：周亮 刘永才 孟进[1] 杨浩楠 ZHOU Liang;LIU Yong-cai;MENG Jin;YANG Hao-nan(National Key Laboratory for Vessel Integrated Power System Technology,Naval University of Engineering,Wuhan,Hubei 430033,China)

机构地区：[1]海军工程大学舰船综合电力国防科技重点实验室,湖北武汉430033

出　　处：《电子学报》2021年第12期2289-2298,共10页Acta Electronica Sinica

基　　金：国家自然科学基金(No.71801220,No.62001498)。

摘　　要：交叉眼干扰是单脉冲雷达最有效的干扰方式之一,增益是衡量交叉眼干扰性能的重要指标.本文在两源反向交叉眼干扰(TRCJ,Two source Retro-directive Cross-eye Jamming)和多源线阵反向交叉眼干扰(LMRCJ,Linear array Multi-source Retro-directive Cross-eye Jamming)增益模型的基础上,以4源线阵反向交叉眼干扰为例,对相同幅值比下LMRCJ的增益最大值进行了推导,提出了LMRCJ整体相位容限计算方法,综合考虑LMRCJ不同环路之间的相位控制方式、幅相波动以及平台回波等因素,对比分析了LMRCJ和TRCJ的增益值和幅相容限.仿真结果表明:不考虑平台回波时,在相同的幅值比下,TRCJ的增益最大值不低于LMRCJ的增益最大值,且增益值高时TRCJ的相位容限比LMRCJ的相位容限更宽松;当LMRCJ和TRCJ的幅相控制能力相同且均较弱时,LMRCJ的增益值高于TRCJ的增益值;考虑平台回波时,在高干信比(JSR,Jam-to-Signal Ratio)下,LMRCJ和TRCJ的增益及相位容限规律与隔离平台回波时的一致.论文研究可以为交叉眼干扰机的工程设计提供指导.Cross eye jamming is one of the most effective jamming methods for monopulse radar,and cross eye gain is an important index to measure the performance of cross eye jamming.Based on the gain models of two source retro-direc⁃tive cross-eye jamming(TRCJ)and linear array multi-source retro-directive cross-eye jamming(LMRCJ),the maximum gain value of LMRCJ under the same amplitude ratio is deduced by taking the cross eye interference of 4-source linear array as an example,and the calculation method of overall phase tolerance of LMRCJ is proposed.Considering the phase control mode between different loops of LMRCJ,amplitude phase fluctuation and platform echo,the gain value and amplitude com⁃patibility limit of LMRCJ and TRCJ are compared and analyzed.The simulation results show that,without considering the platform echo,the maximum gain of TRCJ is not lower than that of LMRCJ under the same amplitude ratio,and the phase tolerance of TRCJ is more relaxed than that of LMRCJ when the gain is high;when the amplitude and phase control capabil⁃ities of LMRCJ and TRCJ are the same and weak,the gain of LMRCJ is higher than that of TRCJ;when considering the platform echo,the gain and phase tolerance of LMRCJ and TRCJ are consistent with those of isolating platform echo at high JSR.The paper can provide guidance for the engineering design of the cross-eye jammer.

关 键 词：单脉冲雷达 交叉眼 多源线阵 整体相位容限 干信比 

分 类 号：TN974[电子电信—信号与信息处理]