Dual-Quaternion-Based Sampled-Data Pose Tracking Control of Spacecraft

This paper focus on the nonlinear sampled-data tracking problem of spacecraft. The integrated model of the pose tracking based on dual quaternion is firstly obtained. Then, the Euler-approximation model is applied to obtain the discrete-time model. Further, a nonlinear sampled-data controller based on dual quaternion discrete-time model is proposed so the tracking error between the pose trajectory of spacecraft and desired trajectory asymptotically converge to zero.