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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2020, Vol. 41 ›› Issue (11): 623857-623857.doi: 10.7527/S1000-6893.2020.23857

• Special Topic of Guidance and Control Technology for Aerospace Vehicles • Previous Articles     Next Articles

Prescribed performance filter backstepping control of hypersonic vehicle with full state constraints

LI Yaping1, WANG Fang1, ZHOU Chao2   

  1. 1. School of Science, Yanshan University, Qinhuangdao 066004, China;
    2. Ocean College, Hebei Agricultural University, Qinhuangdao 066003, China
  • Received:2020-01-31 Revised:2020-03-03 Online:2020-11-15 Published:2020-06-24
  • Supported by:
    National Natural Science Foundation of China(61503323); Natural Science Foundation of Hebei Province(F2020203105,F2017203130)

Abstract: A prescribed performance backstepping control strategy based on a fixed time disturbance observer is designed for a hypersonic vehicle with uncertain aerodynamic parameters and full state constraints. Firstly, the barrier Lyapunov function is introduced into every step of the backstepping control to guarantee that the system states meet the preset constraints. Secondly, a fixed-time disturbance observer is designed to estimate the lumped uncertainty. Meanwhile, a novel first-order filter is developed to avoid the problem of "explosion of terms" inherent in traditional backstepping control. In the framework of the Lyapunov stability theory, it is proved that the tracking error is bounded and that all states satisfy the constraint requirements. Finally, the effectiveness of the control strategy is verified through compared simulation.

Key words: hypersonic vehicles, prescribed performance control, state constraints, barrier Lyapunov functions, fixed-time disturbance observers

CLC Number: