Finite-time attitude tracking control for spacecraft based on backstepping method with input saturation.

Authors

Yanmin Ren, Aijia Xing

Published in

PloS one. Volume 20. Issue 6. Pages e0326150. Epub Jun 18, 2025.

Abstract

In this paper, the finite-time attitude tracking control problem for spacecraft based on the backstepping method is addressed. Firstly, a finite-time controller is designed, which can provide robustness for external disturbance by employing an improved adaptation law. Secondly, a novel finite-time controller with input saturation is proposed by introducing the hyperbolic function and auxiliary system to guarantee the control torques below a predetermined value. The above two controllers are continuous, thus, they are chattering-free. Finally, simulation results are presented to illustrate the effectiveness of the control strategies.

PMID:
40532031
Bibliographic data and abstract were imported from PubMed on 19 Jun 2025.

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