ON-ORBIT CALIBRATION BASED ON SECOND-ORDER NONLINEAR FILTERING
This paper presents a real-time on-orbit calibration algorithm for gyros and star sensor with second-order nonlinear filtering to meet the high accuracy of satellite three-axis attitude determination. A model of gyros misalignment, scale factor error and drift is constructed by considering the error sources during satellite attitude measure. Compared with the other calibration algorithms, this algorithm provides more attitude information for satellite attitude determination and correction and makes sure the long-term on-orbit working precision of attitude sensors. Finally, a simulation is carried out with the data from the on-orbit satellite TS-1 of Harbin Institute of Technology (HIT). The results are identical with the actual results and indicate the availability and feasibility of the on-orbit calibration algorithm.
On-orbit calibration Gyro Star sensor Satellite attitude
HUI LI ZHAO-WEI SUN XUE-QIN CHEN YUN-HAI GENG
Research Center of Satellite Technology, Harbin Institute of Technology P.O.Box 3013, No.2 Yikunag Street,Nangang District, Harbin, China, 150080
国际会议
2008 International Conference on Machine Learning and Cybernetics(2008机器学习与控制论国际会议)
昆明
英文
2970-2975
2008-07-12（万方平台首次上网日期，不代表论文的发表时间）