一种姿态机动辅助下的天文导航系统偏差自校准方法  

An Attitude Maneuvering Aided Self-calibration Algorithm for Celestial Autonomous Navigation System

作　　者：魏春岭[1,2] 张斌[1,2] 张春青[1,2] 

机构地区：[1]北京控制工程研究所,北京100190 [2]空间智能控制技术国家级重点实验室,北京100190

出　　处：《宇航学报》2010年第1期93-97,共5页Journal of Astronautics

摘　　要：基于成像型紫外敏感器的自主导航是一种典型的天文导航方法,其精度不仅取决于敏感器的测量噪声,而且与系统性误差的大小密切相关。针对成像型紫外地球敏感器的特点,建立了紫外敏感器测量模型。为消除系统误差对自主导航精度的影响,提出了一种姿态机动辅助下的偏差自校准导航滤波方法,并以紫外地球敏感器测量偏差为例,设计了导航滤波算法。数学仿真和半物理仿真结果表明,该方法能显著地提高自主导航精度。The ultraviolet sensor based autonomous navigation is a classical celestial navigation method, and its performance is determined by the magnitude of measurement noise and systematic errors. In order to eliminate the negative effects of systematic errors on navigation accuracy, a self-calibration navigation algorithm aided with attitude maneuvering is proposed. The simulation results and hardware-in-the-loop test show that the proposed scheme could improve the navigation accuracy remarkably.

关 键 词：自主导航 紫外敏感器 自校准滤波 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]