固定单站对运动辐射源的无源定位  

The Passive Location of a Moving Emitter with Fixed Single Station

作　　者：王玉虹[1] 徐铂韬[1] 

机构地区：[1]中国电子科技集团公司第54研究所,河北石家庄050081

出　　处：《无线电工程》2007年第1期53-54,共2页Radio Engineering

摘　　要：固定单站对运动辐射源的无源定位是电子战领域的一个新课题。传统方法主要是利用到达方位角(DOA)信息对辐射源进行测向交叉定位,但由于该方法对测角精度的敏感性,仅利用DOA信息会导致定位精度低、算法收敛时间长等不良后果;文章详细分析了三维运动辐射源的特点,建立了一个数学模型,并结合方位角变化率采用基于MGEKF的定位算法,进行单站定位,这种算法提高了对运动辐射源目标的定位精度。The passive location of a moving emitter with fixed single station is a new project in the field of EW. The traditional method is to use DOA （direction of arrival） information to perform direction finding and cross location for the emitter, but the method may result in bad accuracy or long convergence time. In this paper, the characteristics of three-dimensional moving emitter are analyzed in detail, and a mathematical model is established. Combined with the azimuth rate, MGEKF based location method is adopted to perform single station location. This method improves the location accuracy of a moving emitter.

关 键 词：无源定位 运动辐射源 方位角变化率 修正增益扩展卡尔曼滤波 

分 类 号：TN975[电子电信—信号与信息处理]