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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2023, Vol. 44 ›› Issue (10): 327465-327465.doi: 10.7527/S1000-6893.2022.27465

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Distributed fixed-time output-feedback attitude consensus control for multiple spacecraft with input saturation

Chuang XU, Baolin WU()   

  1. Research Center of Satellite Technology,Harbin Institute of Technology,Harbin 150001,China
  • Received:2022-05-18 Revised:2022-06-09 Accepted:2022-07-04 Online:2023-05-25 Published:2022-07-08
  • Contact: Baolin WU E-mail:wuba0001@e.ntu-edu.sg
  • Supported by:
    National Natural Science Foundation of China(61873312)

Abstract:

This paper studies the distributed fixed-time output-feedback attitude consensus control problem of multiple spacecraft with input saturation under directed graph. First, only a part of the spacecrafts can obtain the attitude and angular velocity state information of the leader. A fixed-time observer of leader’s attitude is designed to estimate leader’s attitude. Then, for the issue that spacecrafts being unable to measure their own ungular velocity, this paper proposes a fixed-time state observer to estimate the angular velocity of spacecraft in a fixed time. Based on the estimated leader’s attitude and spacecraft angular velocity, a fixed-time attitude tracking controller is proposed, and the fixed-time stability of the spacecraft attitude system is proved rigorously. Finally, some simulations are conducted, and simulation results verify the effectiveness of the proposed control scheme.

Key words: input saturation, output feedback, fixed-time control, consensus control, multiple spacecraft, spacecraft attitude control

CLC Number: