摘要
提出基于紫外姿态敏感器和星间相对测量的星座组合导航方法。采用扩展卡尔曼滤波算法来对观测数据进行融合,实现对星座中各颗卫星的位置矢量和速度矢量的精确估计。以低轨区域星座为例,基于Cramer-Rao下界分析组合导航系统的性能,并通过数学仿真验证了所提方法的有效性。
An integrated navigation method for the constellation based on ultraviolet sensor and inter-satel- lite relative measurements is presented in this paper. The extended Kalman filter is designed to fuse informa- tion of these observations. Finally, the performance of integrated navigation method is analyzed based on Cramer-Rao lower bound and the simulation is carried out on a LEO regional constellation. The simulation results proved the feasibility of this method.
出处
《航天控制》
CSCD
北大核心
2013年第5期83-89,共7页
Aerospace Control
基金
国家自然科学基金(61074103)资助项目
关键词
组合导航
紫外姿态敏感器
星间相对测量
区域星座
CRAMER-RAO下界
Integrated autonomous navigation
Ultraviolet sensor
Inter-satellite relative measurements
Regional constellation
Cramer-Rao lower bound
