Rotation-matrix-based attitude tracking and synchronization of multiple flexible spacecraft under directed graph
Ti Chen, Jinjun Shan · 2019
The distributed attitude tracking of multiple flexible spacecraft is addressed on SO(3) under directed graph. Since only some followers know the desired attitude, a sliding model observer is introduced for each spacecraft to estimate the moving leader's information. A distributed adaptive controller is designed to drive the networked flexible spacecraft to track the leader and keep the flexible vibration bounded. Separation principle is adopted to prove the stability of the resulting closed-loop system. Finally, numerical simulations are conducted to verify the effectiveness of the proposed controller.