摘要
在惯导系统一般的误差动态方程和速度观测方程的基础上,建立了姿态传递对准所必需的弹、舰相对姿态误差方程和观测方程。介绍了基于动态系统可观测性矩阵奇异值分解的状态变量可观测度的分析方法。用奇异值分解的方法,对同时采用速度和姿态传递的INS对准模型,分析了系统变量的可观测性和可观测度,为对准方程的可观测性结构分解和误差估计性能的改善提供了必要的基础。
The dynamic equation of the relative attitude error between the missile and the ship has been built and the corresponding detection equation derived in the attitude transfer alignment based on the general error dynamic equation and velocity detection equation of INS. The method of analyzing the observable degree of the state variable has been introduced by means of the singular value decomposition （SVD） of the observable matrix of a dynamic system, The observable degree of the system variable has been analyzed with the SVD in the case of the external velocity and attitude applied to transfer alignment of INS, that provides a necessary basis for the observability structure decomposition and improving error estimation performance of alignment equation,
出处
《中国惯性技术学报》
EI
CSCD
2005年第6期26-30,共5页
Journal of Chinese Inertial Technology
关键词
SVD
可观测度
传递对准
姿态误差
SVD
observability degree
alignment transfer
attitude error
