Distributed Adaptive Attitude Control for Networked Underactuated Flexible Spacecraft

This paper studies the distributed adaptive control of a team of underactuated flexible spacecraft under a leader-follower architecture with the measurements of the rigid bodies only. By treating the flexible spacecraft as an underactuated Lagrange system, an adaptive control strategy is proposed with the feedback of the generalized coordinates, velocities, and accelerations of the rigid bodies. Then, an extended state observer is introduced to design a distributed adaptive controller without the measurement of the generalized accelerations.