Journal of Systems Engineering and Electronics ›› 2017, Vol. 28 ›› Issue (6): 1174-1185.doi: 10.21629/JSEE.2017.06.15

• CONTROL THEORY AND APPLICATION • Previous Articles     Next Articles

Finite-time attitude tracking control for spacecraft without angular velocity measurements#br#

Li Yuan, Guangfu Ma, Chuanjiang Li*, and Boyan Jiang   

  1. Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Online:2017-12-27 Published:2017-12-27

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Abstract:

The output feedback control for spacecraft attitude tracking system is investigated in this study. It is assumed that angular velocity measurements are not available for feedback control. A technique named adding power integrator (API) is adopted to estimate the pseudo-angular-velocity. Then we design a finite-time attitude control law, which only utilizes the relative attitude information. The stability analyses of the feedback system are proved as well, which shows the attitude tracking errors will converge into a region of zero even the external disturbances exist. The simulation results illustrate the high precision and robust attitude control performance of the proposed control strategy. 

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