摘要
基于机会辐射源的无源雷达由于其良好的隐蔽性、反隐身能力及抗干扰性,简单的系统结构,低廉的造价等优点,近年来在国内外掀起了新的研究热潮。辐射源的选择是这种无源雷达的关键技术之一。本文首先分析了各种星载辐射源的优缺点,通过对比北斗卫星定位系统与其他卫星导航定位系统,得出基于北斗的无源雷达系统的优势。然后分析了北斗卫星询问信号的最大探测距离并仿真了其单/双站模糊函数,结果表明北斗卫星更适合用于部署在我国境内的无源雷达的机会辐射源。
Interest in passive radar has risen up in resent years for the following advantages of this kind of radar,such as cover ability,anti-stealth,anti-jamming capability,simple structure,low cost and so on.Selection of the illuminator is one of the critical technologies.First,the advantages and disadvantages of varies of spaceborne illuminator was discussed,and the superiority of Beidou illuminator was attained by comparing Beidou and other GNSS.And then the detection ability and the single/bistatic ambiguity were analyzed. The result shows that Beidou satellites are more suitable as opportunity illuminators in China.
出处
《信号处理》
CSCD
北大核心
2010年第4期631-636,共6页
Journal of Signal Processing
关键词
无源雷达
星载辐射源
北斗卫星定位系统
模糊函数
passive radar
spaceborne illuminator
Beidou satellite Navigation and Position system
ambiguity function
