This paper proposes a novel integrated guidance and autopilot (IGA) method for hypersonic vehicles in dive phase. The third order back-stepping L1 adaptive control is implemented to deal with the uncertainties of aerodynamics coefficients, degradation of control surface efficiency and unmatched time-varying disturbances in the nonlinear flight dynamics. Furthermore, a second order actuator dynamics is considered. Nonlinear differentiator is used to avoid directly differentiating to the control surface deflection command, and then terminal sliding mode control is designed for the actuator to track the command. Through a series of 6-DOF numerical simulations, it's indicated that the proposed method successfully cancels out the uncertainties and disturbances in hypersonic flight. The contribution of this paper lies in the application and determination of nonlinear integrated design of guidance and control system.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Integrated guidance and autopilot for hypersonic vehicles in dive phase using back-stepping L1 adaptive control


    Contributors:
    Wang, Liang (author) / Hu, Fan (author) / Zhang, Weihua (author) / Wang, Donghui (author)


    Publication date :

    2017-07-01


    Size :

    1079425 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English