摘要
被动式防空雷达作为一种新体制,已引起国内外的普遍关注。当今雷达面临“四大威胁”,使得被动式探测系统成为未来雷达发展的主要方向之一,到达时差(TDOA,TimeDifferenceofArrival)定位是近年来使用日益广泛的一种无源定位技术,它具有优良的隐蔽性和探测性能。文中介绍了双曲线时差定位系统的基本组成和工作原理,该种系统基于多站的被动到达时间差去处理由目标发射出的雷达、干扰、敌我识别器、塔康询问等信号;重点分析了系统搜索、跟踪、识别等工作方式,并提出了该系统的关键技术。
As a new system,passive air defense radar is interested by all over the world. Passive detecting system would be important present radar has been facing “The Four Great Threats.” Nowadays, passive locating is mainly based on the measurement of time difference of arrival (TDOA). It has the excellent performences of concealing and detection. The basic composition and mode of operation of hyperbolic time difference positioning system are introduced;it is based on passive time difference of arrival(TDOA) multilateration technique processing air radar's,jammer's,SIF/IFF transponder's and TACAN/DME interrogator's signals emitted by targets; the system's mode of operation of searching,tracking and recognition are analyzed;and finally the system's key technologys are proposed. [
出处
《现代雷达》
CSCD
北大核心
2004年第11期5-7,11,共4页
Modern Radar
