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Based on the additive-state-decomposition (ASD) dynamic inversion design, a proportional-integral controller is designed to stabilize a class of multi-input multi-output (MIMO) systems subject to nonparametric time-varying uncertainties with respect to both state and input. By ASD and a new definition of output, the considered uncertain system is transformed into a first-order system, in which all...
In this paper, the tracking control problem is investigated for a class of uncertain single-input single-output (SISO) linear time-invariant (LTI) systems. In a practical control system, uncertainties include parametric uncertainties, unmodeled dynamics, time delay and disturbances, which are too many and complicated to observe or know. By taking this into account, a new tracking controller design...
Periodic signal tracking is certainly easier than general signal tracking. This has been manifested for linear time-invariant systems by applying theories of repetitive control. However, because of the lack of corresponding theories, the difficulties in designing repetitive controllers for both periodic signal tracking and general signal tracking in nonlinear systems are similar or the same. In view...
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