Nonlinear Robust Adaptive Control for Spacecraft Proximity Operations
نویسندگان
چکیده
The relative motion control for an uncertain chaser spacecraft to approach a tumbling space target is investigated in this paper. The nonlinear coupled dynamics for relative translational and rotational motions of the two spacecrafts are modeled. Based on the model, relative position and attitude controllers are designed by a unified nonlinear robust adaptive control method without using the target inertial parameter information. Asymptotic stability of the six degrees-of-freedom closed-loop system is proved. Theoretical results are demonstrated by a numerical simulation.
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