低截获雷达抗分选信号设计技术研究综述

Review on Anti-sorting Signal Design Technology of Low Probability Intercept Radar

雷达是获取战场态势的关键装备,极易遭受电子攻击。低截获雷达能从根本上提高雷达电子防御能力,是当前雷达研究热点,其重点之一是抗分选信号设计。首先阐述了低截获雷达的概念,然后介绍了低截获雷达的应用需求,说明了低截获雷达抗分选信号设计的必要性和紧迫性。梳理了近年来低截获雷达抗分选信号设计的方法,重点分析了信号组合、信号参数调制、基于脉冲重复周期(Pulse Repetition Interval,PRI)、优化算法四种抗分选信号设计方法。最后展望了抗分选信号设计技术的发展方向。

Radar is the key equipment to obtain battlefield situation.However,it is vulnerable to electronic attack.Low probability intercept(LPI)radar can fundamentally improve radar electronic defense capability.Therefore,LPI radar is an important field of radar research,which focuses on the design of anti-sorting signal.Firstly,the concept of LPI radar is described.Secondly,the application requirements of LPI radar are introduced.And the necessity and urgency of anti-sorting signal design for LPI radar is clarified.Thirdly,the methods of anti-sorting signal design of LPI radar in recent years are reviewed,with focus on four anti-sorting signal design methods,including signal combination,signal parameter modulation,pulse repetition interval(PRI)-based,and optimization algorithm.Finally,the development direction of anti-sorting signal design technology is prospected.