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The pointing accuracy of microsatellite is vulnerable to space environmental disturbances and the internal uncertainty of moment-of-inertia variation due to its smaller size and weight. The attitude control of microsatellite has been a difficult problem due to the disturbances and uncertainty, as well as the combination of control actuators. The H∞ control can guarantee the robustness stability against...
In this paper, a class of nonlinear controllers is proposed for rotational maneuvers of spacecraft with a pair of flexible appendages attached. With the application of proposed nonlinear feedback torque, dynamic equations of the flexible spacecrafts are converted into the linear parameter-varying (LPV) form. Regional pole assignment for the resultant LPV system is performed via secondary linear state...
The non-linear state space model which contains multiple perturbation parameters under ordinary max-algebra was linearized in the sense of generalized max-algebra. Based on this method, researching to the periodic stable robustness for a class of process perturbation and non-blocking control system, and the analytic expression of eigen-input and period of non-blocking feedback control system without...
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