This article addresses the velocity-free attitude control problem for rigid spacecraft with bounded external disturbances. To obtain an accurate estimate of the spacecraft's velocities and external disturbances, a semiglobal practical predefined-time extended-state observer is presented in terms of a time-dependent scaling function. Next, a continuous and nonsingular sliding mode surface is designed, and a predefined-time observer is introduced to estimate the derivative of a term in the sliding mode surface. Then, a practical predefined-time velocity-free attitude control scheme is proposed for rigid spacecraft. The developed controller can ensure that the upper limit of the resulting settling time is predefined without dependence on initial conditions or any other parameters. One further salient feature of the present control approach is that a reduced magnitude of the applied control torques is required to achieve satisfactory attitude control performance. Finally, numerical simulation examples are conducted to show the effectiveness of the derived control scheme.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Predefined-Time Extended-State Observer-Based Approach for Velocity-Free Attitude Control of Spacecraft


    Contributors:
    Ye, Dong (author) / Zou, An-Min (author) / Sun, Shengxin (author) / Xiao, Yan (author)


    Publication date :

    2023-12-01


    Size :

    1887674 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Predefined-Time Approximation-Free Attitude Constraint Control of Rigid Spacecraft

    Xie, Shuzong / Chen, Qiang / He, Xiongxiong | IEEE | 2023


    Extended State Observer Based Optimal Attitude Robust Control of Spacecraft

    Hu, Qinglei / Li, Bo / Xiao, Bing et al. | Springer Verlag | 2021


    Predefined-time attitude takeover control of spacecraft with quantized states

    Shi, Mingyue / Wu, Baolin / Xu, Chuang | SAGE Publications | 2023