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Multi-Objective Robust H_{\infty } Control of Spacecraft Rendezvous

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3 Author(s)
Huijun Gao ; Space Control & Inertial Technol. Res. Center, Harbin Inst. of Technol., Harbin ; Xuebo Yang ; Peng Shi

Based on the relative motion dynamic model illustrated by C-W equations, the problem of robust Hinfin control for a class of spacecraft rendezvous systems is investigated, which contains parametric uncertainties, external disturbances and input constraints. An Hinfin state-feedback controller is designed via a Lyapunov approach, which guarantees the closed-loop system to meet the multi-objective design requirements. The existence conditions for admissible controllers are formulated in the form of linear matrix inequalities (LMIs), and the controller design is cast into a convex optimization problem subject to LMI constraints. An illustrative example is provided to show the effectiveness of the proposed control design method.

Published in:

IEEE Transactions on Control Systems Technology  (Volume:17 ,  Issue: 4 )