基于外辐射源雷达系统的目标定位算法

基于外辐射源的单站无源定位系统实际相当于收发分置的双基雷达,具有反侦察、抗干扰、反隐身和防反辐射导弹等潜在优势,因此利用外辐射源信号对目标进行无源定位和跟踪是目前国际上比较热门的一个研究课题。提出了一种基于外辐射源的单站无源定位系统的目标定位算法,借助信号到达的时间差和方位信息,对空中目标进行定位,并进行算法的推导、精度的分析,通过仿真验证了此定位算法的有效性。

Arithmetic for Target Location of Monostatic Passive System Based on External Emitters

The monostatic passive location system are actually bistatic radar systems .Because of some advantages of it,such as anti-elint,electronic counter-countermeasure,detection of stealth targets and counter anti-radiation missile,presently,passive location and tracking of the target using the signal of the external emitters is a global hot problem. A new algorithm for passive localization of target by single station is put forward, based on Time Difference of Arrival (TDOA) and the Direction of Arrival (DOA) of the non-cooperative illuminators. Algorithm deduction and the accuracy analysis are provided. With the help of computer simulation,the method is proven to be effective.