电子战截获LPI雷达信号优化设计研究  

Research on the EW optimal design for intercept of LPI radar signals

作　　者：韩梅 HAN Mei(Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《电子设计工程》2020年第20期20-24,共5页Electronic Design Engineering

摘　　要：为提高电子战告警接收机对LPI雷达信号的截获性能,提出了一种告警接收机灵敏度的优化设计方法。首先简单介绍了告警接收机灵敏度传统分析方法,分析指出了传统方法给出的灵敏度难以满足对LPI雷达功率管理时的信号截获要求。为克服上述问题,针对LPI雷达进行功率管理时辐射功率随距离变化的特点,理论推导了告警接收机灵敏度需求与距离的定量变化关系,从而提出了一种新的灵敏度分析方法。仿真结果表明,提出的新的灵敏度分析方法,相对于传统分析方法能更好地适应LPI雷达功率管控的情况,保证对雷达信号的稳定截获。To improve the intercept performance of EW radar warning receivers(RWR)against LPI radars,an optimal design method of the sensitivity of warning receivers is proposed.Firstly,the traditional sensitivity analysis method of warning receivers is introduced briefly,and the problem is put forward that the sensitivity given by this method cannot satisfy the need of signal intercept for LPI radars with power management.To solve this problem,the quantitative relationship between the sensitivity requirement of warning receivers and distance is deduced in theory in view of the characteristic that the radiation power of LPI radars varies with distance during power management.As a result a new sensitivity analysis method is presented.Simulation results show that,compared with the traditional analysis method,the new analysis method is more applicable to the case that RWRs oppose LPI radars with power management and can ensure stable intercept of radar signals.

关 键 词：告警接收机 LPI雷达 功率管理 灵敏度 

分 类 号：TN955[电子电信—信号与信息处理]