Attitude Sampling Tracking Control For A Rigid Spacecraft Via Backstepping

This paper is concerned with the issue of attitude tracking control design for a rigid spacecraft. We first transform the attitude dynamics into a strict-feedback system by using a change of coordinates. And then, based on a continuous-time controller designed by using Backstepping technique, a multi-rate sampled-data controller is proposed to achieve the asymptotic stability of the closed-loop system. The effectiveness of the proposed approach is verified through a numerical example.