平流层飞艇的组合导航研究  

Study of Integrated Navigation for Stratospheric Airship

作　　者：刘彤[1] 李智斌[1] 

机构地区：[1]北京控制工程研究所,北京100190

出　　处：《航天控制》2008年第5期26-31,共6页Aerospace Control

摘　　要：针对平流层飞艇的飞行特点,提出SINS/GPS/陆标组合导航方法,给出SINS/陆标组合导航的观测模型,并将状态与偏差分离的估计算法与联邦滤波相结合,应用于SINS/GPS/陆标组合导航系统。数学仿真结果表明:新组合导航系统相对于SINS/GPS组合导航系统可以有效改善平台误差角的估计精度,同时,提出的简化状态与偏差分离联邦滤波算法能在保持滤波精度基本不变的前提下减少计算量。A SINS/GPS/Landmark integrated navigation system is proposed according to the flight characteristic of stratospheric airships. The observation equation of the SINS/ GPS/Landmark integrated navigation system is deduced and the federated filter combined with a separate-bias estimation algorithm is applied to the system. Simulation results show that this new integrated navigation system can improve the estimation accuracy for platform error angles effectively relative to the SINS/GPS integrated system and the improved federated filter can reduce the computation greatly.

关 键 词：平流层飞艇 陆标 组合导航 偏差分离估计 

分 类 号：V274[航空宇航科学与技术—飞行器设计] V249.328