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Finite-Time Extended State Observer-Based Fixed-Time Attitude Control for Hypersonic Vehicles

Author

Listed:
  • Jiaqi Zhao

    (School of Aerospace Science and Technology, Xidian University, Xi’an 710071, China)

  • Dongzhu Feng

    (School of Aerospace Science and Technology, Xidian University, Xi’an 710071, China)

  • Jiashan Cui

    (School of Aerospace Science and Technology, Xidian University, Xi’an 710071, China)

  • Xin Wang

    (School of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China)

Abstract

A finite-time extended, state-observer-based, fixed-time backstepping control algorithm was designed for hypersonic flight vehicles. To enhance the robustness of the controller, two novel finite-time extended state observers were introduced to compensate for the negative effects of lumped disturbances such as uncertainties and external disturbances. Two hyperbolic sine tracking differentiators were used to approximate the derivatives of the virtual control signals and guidance commands, thereby alleviating the computational burden associated with traditional backstepping control. Furthermore, a fixed-time backstepping attitude controller was used to guarantee that the tracking errors converged to a small neighbor of the origin in fixed time. According to the simulation results, the proposed controller outperformed a fixed-time sliding mode disturbance, observer-based, finite-time backstepping controller in terms of the tracking precision and convergence rate. Moreover, the proposed controller was noted to be robust in simulations involving lumped disturbances.

Suggested Citation

  • Jiaqi Zhao & Dongzhu Feng & Jiashan Cui & Xin Wang, 2022. "Finite-Time Extended State Observer-Based Fixed-Time Attitude Control for Hypersonic Vehicles," Mathematics, MDPI, vol. 10(17), pages 1-22, September.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:17:p:3162-:d:905256
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    References listed on IDEAS

    as
    1. Shili Tan & Humin Lei & Pengfei Wang, 2018. "Constrained Adaptive Neural Control for Air-Breathing Hypersonic Vehicles without Backstepping," Mathematical Problems in Engineering, Hindawi, vol. 2018, pages 1-13, August.
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    Cited by:

    1. Daiming Liu & Changwan Min & Jiashan Cui & Fei Li & Dongzhu Feng & Pei Dai, 2023. "Finite-Time Super Twisting Disturbance Observer-Based Backstepping Control for Body-Flap Hypersonic Vehicle," Mathematics, MDPI, vol. 11(11), pages 1-14, May.
    2. Mingfei Zhao & Yunlong Hu & Jia Song, 2022. "Improved Fractional-Order Extended State Observer-Based Hypersonic Vehicle Active Disturbance Rejection Control," Mathematics, MDPI, vol. 10(23), pages 1-17, November.

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