Two-Stage Identification Method for Attitude-Control Models of On-Orbit Satellites  

作　　者：耿立辉 萧德云 王乾 张涛 宋靖雁 

机构地区：[1]Department of Automation,Tsinghua University

出　　处：《Tsinghua Science and Technology》2010年第3期319-324,共6页清华大学学报（自然科学版（英文版）

摘　　要：A two-stage identification method was developed for attitude-control models of on-orbit satellites for accurate attitude control. The attitude-control models are based on a generalized attitude model （GAM） and its corresponding noise model （NM）. These are both low order models which are able to characterize the main satellite dynamics and the corresponding noise. These low-order attitude-control models facilitate improved controller design and state estimation. This identification approach uses two open-loop identification processes, with higher order auxiliary models used in the estimation for filtering and with the filtered signals used to identify the low order GAM and NM. An identification experiment with a micro-satellite simulator was used to verify the effectiveness of the two-stage identification method.A two-stage identification method was developed for attitude-control models of on-orbit satellites for accurate attitude control. The attitude-control models are based on a generalized attitude model （GAM） and its corresponding noise model （NM）. These are both low order models which are able to characterize the main satellite dynamics and the corresponding noise. These low-order attitude-control models facilitate improved controller design and state estimation. This identification approach uses two open-loop identification processes, with higher order auxiliary models used in the estimation for filtering and with the filtered signals used to identify the low order GAM and NM. An identification experiment with a micro-satellite simulator was used to verify the effectiveness of the two-stage identification method.

关 键 词：on-orbit satellites generalized attitude model two-stage identification method micro-satellite simulator 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]