Regular Papers

International Journal of Control, Automation and Systems 2023; 21(2): 350-358

Published online January 30, 2023

https://doi.org/10.1007/s12555-021-0671-2

© The International Journal of Control, Automation, and Systems

Adaptive Prescribed-time Control for Coupled 6-DOF Spacecraft Formation Flying

Li Chen, Yongyan Sun, Xiaowei Shao*, Junli Chen, and Dexin Zhang

Shanghai JiaoTong University

Abstract

This paper studies the prescribed-time spacecraft formation flying problem under known and unknown external disturbance. The coupled 6-degrees-of-freedom relative kinematics and dynamics for spacecraft are modeled by using exponential coordinates of SE(3). With the help of the linear time-varying Lyapunov inequality based prescribed-time stability theorem, a novel global adaptive prescribed-time time-varying high-gain control law is designed by backstepping. It is shown that the designed controller is bounded. Numerical simulations verify the effectiveness of the proposed control method.

Keywords Adaptive control, nonlinear feedback, prescribed-time control, spacecraft formation flying, timevarying feedback.

Article

Regular Papers

International Journal of Control, Automation and Systems 2023; 21(2): 350-358

Published online February 1, 2023 https://doi.org/10.1007/s12555-021-0671-2

Copyright © The International Journal of Control, Automation, and Systems.

Adaptive Prescribed-time Control for Coupled 6-DOF Spacecraft Formation Flying

Li Chen, Yongyan Sun, Xiaowei Shao*, Junli Chen, and Dexin Zhang

Shanghai JiaoTong University

Abstract

This paper studies the prescribed-time spacecraft formation flying problem under known and unknown external disturbance. The coupled 6-degrees-of-freedom relative kinematics and dynamics for spacecraft are modeled by using exponential coordinates of SE(3). With the help of the linear time-varying Lyapunov inequality based prescribed-time stability theorem, a novel global adaptive prescribed-time time-varying high-gain control law is designed by backstepping. It is shown that the designed controller is bounded. Numerical simulations verify the effectiveness of the proposed control method.

Keywords: Adaptive control, nonlinear feedback, prescribed-time control, spacecraft formation flying, timevarying feedback.

IJCAS
May 2024

Vol. 22, No. 5, pp. 1461~1759

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