Spherical Formation Tracking Control of Spacecraft Flying Under Directed Communication Topology and External Disturbance
Rui Yu, Yang‐Yang Chen, Faxiang Zhang · 2020
This paper addresses the formation tracking control problem for spacecrafts flying spherically with certain formation. Compared to existing works that deal with bidirectional communication topology and disturbance-free scenarios, this paper proposes a brand-new formation tracking control protocol with directed network and unknown external disturbance with a known upperbound. Moreover, spacecraft flying model is introduced to the system dynamics. The formation tracking law of spacecraft is designed, and the uniform ultimate boundedness is proven through Lyapunov functions as well. To avoid the "explosion of terms" caused by time derivative, the dynamic surface control (DSC) technology is employed to the designing procedure of control input. Numerical simulation results are presented to demonstrate the effectiveness of the proposed scheme.