The Research of Real-Time Estimation Method on Tether Parameters for Tethered Satellite
Most existing control methods of tethered satellite system were established on the knowing of tether parameters, but how to get the parameters needs to be solved. In this paper, a real-time estimator is developed to get the parameters. Firstly, we analyze the shortcomings resulting from directly solving the system equations to get tether parameters. Secondly, the equations are simplified and the corresponding problems are thoroughly investigated. And lastly, combing the measurements of a three-axis tether tensiometer with the information of attitude sensor, we use the Extended Kalman Filter to estimate the parameters in real time. The proposed estimator not only reduces the complexity of system model, but also improves the parameters precision. Simulation results verify the validity of this method.
He Yong Liang Bin Xu WenFu Li Cheng
H. Yong is with Harbin Institute of Technology Shenzhen Graduate School,CO 518055 China Harbin Institute of Technology Shenzhen Graduate School,CO 518055 China Institute of Space Intelligent System,Harbin,CO 150001 China
国际会议
2009 IEEE International Conference on Information and Automation(2009年 IEEE信息与自动化国际学术会议)
珠海、澳门
英文
148-153
2009-06-22（万方平台首次上网日期，不代表论文的发表时间）