干扰环境下组网雷达定位性能分析  

Location Performance of Radar Network in Jamming Environment

作　　者：朱宇[1] 罗景青[1] 陈正中 

机构地区：[1]电子工程学院,安徽合肥230037

出　　处：《现代防御技术》2013年第5期112-118,共7页Modern Defence Technology

摘　　要：针对单/多干扰机同时对组网雷达中的全部或部分雷达进行干扰的情况,在分析干扰对雷达测量精度影响的基础上,从定位精度的克拉美-罗界(CRB)定义出发,建立了基于最大似然估计的组网雷达定位精度通用计算模型,该模型适用于网内雷达无源和有源2种工作模式。通过仿真定量分析了不同的干扰情况下组网雷达的定位性能,仿真结果表明所构建模型和方法的有效性。Single or muhi-jammers can be used to disturb all or part of radars in the radar network. Aiming at this issue, the change of the radar＇ s measurement precision in jamming environment is stud- ied. According to the definition of Cramer-Rao bound （CRB） of location precision, mathematical model of the location precision about radar network is established on the basis of maximum likelihood estimator, and the mathematical model is applied to radar＇ s active and passive work pattern. The jamming effect is simulated and studied quantitatively. The simulations reveal that this mathematical model is effective and feasible.

关 键 词：组网雷达 定位精度 最大似然估计 克拉美-罗界 

分 类 号：TN959[电子电信—信号与信息处理] TN972[电子电信—信息与通信工程]