Spacecraft on-orbit inspection provides a prerequisite for the subsequent autonomous proximity operations. To fulfill the mission, robust constrained control algorithms for relative position tracking and attitude adjustment should be employed to handle the nonlinear coupled dynamics, system constraints, and external disturbances. In this paper, a robust nonlinear model predictive control (NMPC) scheme with prescribed performance based on a fixed-time neural network disturbance observer is proposed. Predefined tracking performance requirements are achieved, and, meanwhile, safety and stability are guaranteed. By exploiting the prescribed performance control technique, the proposed NMPC structure is capable of establishing a quantitative relationship between design parameters and certain prespecified performance values. Moreover, the proposed fixed-time neural network disturbance observer shows superiority in the disturbance estimations due to the property of universal approximation and fixed-time convergence. To illustrate the capabilities of our algorithm, comparison simulation tests concerning with prescribed performance and disturbance estimating are presented. Selection of tuning parameters is discussed, and computational load of the proposed algorithm is profiled.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Disturbance Observer-Based Prescribed Performance Predictive Control for Spacecraft On-Orbit Inspection


    Contributors:
    Fu, Jiangliang (author) / Chen, Li (author) / Zhang, Dexin (author) / Zhang, Jun (author) / Shao, Xiaowei (author)

    Published in:

    Publication date :

    2022-10-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English







    Innovative Nonlinear Predictive Control of Spacecraft Improved by Disturbance Observer (AAS 07-396)

    Claveau, F. / deLafontaine, J. / American Astronautical Society et al. | British Library Conference Proceedings | 2008


    Disturbance Observer-Based Constrained Attitude Control for Flexible Spacecraft

    Golestani, Mehdi / Zhang, Weidong / Yang, Yunxiang et al. | IEEE | 2023