中国空间科学技术

中国空间科学技术

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基于联合滤波器的高精度卫星定姿系统设计

王志胜;甄子洋;范大鹏;   

  1. 南京航空航天大学自动化学院;国防科学技术大学机电工程与自动化学院;
  • 发布日期:2009-06-25

Design of Federated Filtering Based Satellite Attitude Determination System

Wang Zhisheng~1 Zhen Ziyang~1 Fan Dapeng~2 (1 College of Automation Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016) (2 College of Mechatronics Engineering and Automation, National University of Defense Technology,Changsha 410073)   

  • Online:2009-06-25
  • Supported by:
    国家自然科学基金(60874037);; 教育部高等学校博士点科研基金(20070287050);; 中国博士后科学基金(20080441286)

被引次数

3

摘要： 设计了由陀螺、GPS姿态敏感器、红外地平仪和太阳敏感器构成的太阳同步极轨卫星姿态确定系统。提出联邦滤波器结构和算法,推导了各子系统的量测方程和姿态确定系统的误差状态方程。为规避对量测值进行非相关处理,采用减小GPS姿态敏感器输出的姿态滤波值作为系统滤波器量测值的频率的方法。仿真结果表明,采用联邦滤波器对多敏感器卫星姿态确定系统进行信息融合,具有计算量小、精度高、可靠性好等优点。

关键词: 联邦滤波器, 卫星姿态传感器, 高精度, 姿态控制, 太阳同步极轨卫星

Abstract: A sun synchronous polar satellite attitude determination system composed of gyros, GPS sensors,sun sensors and infrared horizon sensors was designed.Federated filter structure and algorithm of the attitude determination system are proposed,and then the measurement equations of all sensors and the error state equation of attitude determination system were deduced.To avoid the noncorrelation processing,the attitude filtering value which decreases the GPS sensor output was utilized as the frequency of the system measurement.Simulation results show that federated filtering based information fusion method for the multi-sensor satellite system is characterized by small computation cost,high precision and good reliability.

Key words: Federated filter, Satellite attitude sensor, High accuracy, Attitude control, Sun synchronous polar satellite