基于纯方位量测的三维运动目标可观测性研究  

Observability of Three-dimensional Moving Targets Based on Bearings Only Measurements

作　　者：熊茂涛[1,2] 张勇[1,2,3] 吴钦章[1] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209 [2]中国科学院研究生院,北京100039 [3]重庆工商大学,重庆400067

出　　处：《现代防御技术》2009年第4期30-34,共5页Modern Defence Technology

基　　金：中国科学院"西部之光"人才培养计划基金资助课题(2007414)

摘　　要：通过建立纯方位量测系统的状态方程和测量方程,利用伪线性化方法,将非线性测量方程转换成线性形式,再利用奇异矩阵的性质,获得一种基于可观测性定义和特征值分解法相结合的定量确定纯方位量测系统可观测性的方法,得出可观测的充要条件。此项成果对于分析运动目标跟踪的机动策略具有重要意义,可推广到对多种运动目标的三维被动跟踪研究中。The state equation and measurement equation of bearings only measurements system are founded. With the method of Pseudo linear, the nonlinear measurement equation is transformed as linear framework. The observability criterion based on the observability definition and the eigenvalue decomposition solution is acquired. A necessary and sufficient condition of the system deduces from the criterion. The results are important to maneuvering strategy of moving target and can be extended to three-dimensional passive tracking of various moving targets.

关 键 词：目标运动分析 纯方位量测 伪线性化 可观测性 格拉姆矩阵 

分 类 号：V557.5[航空宇航科学与技术—人机与环境工程]