对SAR卫星天线旁瓣信号侦察研究  

Study on SAR Antenna Side Lobe Reconnaissance

作　　者：曲卫 [1] 吴彦鸿 [2] 贾鑫 [2] 

机构地区：[1]装备指挥技术学院,研究生部,北京,101416 [2]装备指挥技术学院,测量控制系,北京,101416

出　　处：《装备指挥技术学院学报》2004年第2期103-107,共5页Journal of the Academy of Equipment Command & Technology

基　　金：国家高技术发展计划项目

摘　　要：对合成孔径雷达(synthetic aperture radar,SAR)卫星旁瓣侦察和跟踪的目的是:为地面对SAR的干扰系统提供SAR卫星过顶的预警,引导地面干扰天线对准SAR卫星,提高干扰系统的效能.针对SAR卫星天线的工作特点,重点研究了SAR卫星天线旁瓣增益变化的范围及趋势,推导了对SAR卫星旁瓣进行侦察的侦察方程;建立了SAR卫星过顶的场景模型,仿真分析中利用了真实SAR卫星的天线参数及轨道参数,计算了天线跟踪角速度、SAR卫星在侦察天线处的功率密度等参数随时间变化的关系;分析了对SAR卫星旁瓣信号进行侦察跟踪的若干问题,为地面侦察跟踪系统各指标的研制提供参考.The purpose of reconnaissance and tracking of SAR(synthetic aperture radar)side lobe is to provide SAR overhead prewarning for ground SAR jamming system and to steer ground interference antenna aiming at SAR, so as to enhance the effectiveness of jamming system. Relative to the characteristic of SAR satellite antenna, the paper makes an emphases research on SAR satellite antenna side lobe gain variational scope and its tendency, reconnaissance equation for SAR side lobe reconnaissance is deduced. A scene model is established for SAR overheading. Real SAR antenna parameters and orbit parameters are used in the simulation analyses. Antenna tracking angular velocity and power density of SAR on the reconnaissance antennae is calculated. Some problems are analysed for SAR side lobe signal reconnaissance and tracking which providing reference for development of ground reconnaissance tracking system.

关 键 词：合成孔径雷达 旁瓣侦察 跟踪 SAR 卫星天线 信号侦察 

分 类 号：TN958[电子电信—信号与信息处理]