摘要
针对空间信息对抗中的侦察卫星变轨和对地面"静默"等特点,本文提出了一种基于UT(UnscentedTransform)变换的UKF(UnscentedKalmanFiltering)滤波跟踪方法,实现了单个侦察卫星仅仅测量角度对辐射卫星的轨道的无源跟踪和定位,经过计算机仿真表明,仅仅利用单个卫星对卫星只测角定位是可能的,且在测角精度较高时,该方法的轨道跟踪精度可达1公里以内。
To the features such as dogleg and silence of reconnaissance satellite in space counter measures,a tracking algorithm,called Unscented Kalman Filtering(UKF),which based on Unscented Transform(UT) is put forward.It trealizes passive tracking and locating the orbit of satellite by bearings.Computer simulation indicated that it is possible to track satellite by single satellite using bearings-only measurement.Tracking error of orbit position could be less than 1 Km when the precision of bearings measurement is high.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2005年第2期196-200,共5页
Journal of Astronautics
关键词
无源定位
卫星
只测角
卡尔曼滤波
Passive location
Satellite
Bearings-only
Kalman filtering
