SINS/GPS/陆标组合导航在平流层飞艇中的应用  

Application of SINS/GPS/Landmark Integrated Navigation in 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,北京100080

出　　处：《中国空间科学技术》2008年第3期29-36,44,共9页Chinese Space Science and Technology

摘　　要：针对平流层飞艇的飞行特点,提出了SINS/GPS/陆标组合导航方法,给出了SINS/陆标组合导航的观测模型,并将Sage-Husa自适应滤波方法与联邦滤波相结合形成改进的自适应联邦滤波,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,同时利用改进的自适应联邦滤波可有效提高全局滤波精度。SINS/GPS/Landmark integrated navigation system was proposed according to the flight characteristic of the stratospheric airship. The observation equation of SINS /Landmark integrated navigation system was deduced and the improved Sage-Husa adaptive filtering method combined with federated filter was applied to SINS/GPS/Landmark integrated navigation system. Simulation results show that this new integrated navigation system can improve the attitude precision effectively relative to SINS/GPS integrated system and the improved adaptive federated filter can enhance the global estimation accuracy.

关 键 词：全球定位系统 组合式导航 捷联惯性导航系统 自适应联邦滤波 平流层飞艇 

分 类 号：V249.328[航空宇航科学与技术—飞行器设计] TN967.2[电子电信—信号与信息处理]