Model uncertainties and external disturbances present significant challenges for controlling fixed-wing unmanned aerial vehicles (UAVs). An adaptive smooth second-order time-varying nonsingular fast terminal sliding mode control method is proposed in this paper for attitude and airspeed control of fixed-wing UAVs with model uncertainties and external disturbances. This control method does not require information about the bounds of disturbances and can avoid overestimation of the control gains. A radial basis function neural network observer is designed to mitigate the influence caused by sudden disturbances. The convergence of the attitude and airspeed controllers is proven by using the Lyapunov stability theory. Simulation results demonstrate the effectiveness of the proposed method for controlling a six-degrees-of-freedom fixed-wing UAV.


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    Title :

    An Augmented Sliding Mode Control for Fixed-Wing UAVs with External Disturbances and Model Uncertainties


    Contributors:
    Yu Pan (author) / Ni Li (author) / Wanyong Zou (author) / Ban Wang (author) / Kaibo Wang (author) / Xiaojun Tang (author) / Shuhui Bu (author) / Ling Qin (author)


    Publication date :

    2023




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




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