Finite-time Attitude Control for Spacecraft Formation Flying System

摘要

In this paper, the finite time attitude stabilization and attitude tracking for spacecraft formation flying system with parameter uncertainty are investigated. First, based on the spacecraft formation attitude quaternion motion model, the corresponding control laws are presented to guarantee the spacecraft formation flying system attitude tracking and attitude stabilization in finite time with parameter uncertainty by using a modified terminal sliding mode surface. Second, the proof analysis by Lyapunov stability theory shows that the system can converge to stable in finite time. Finally, the simulation results demonstrate that the high performance and the better effectiveness of the control laws.