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The path-following control problem is considered for a 3 degree-of-freedom underactuated surface vessel with disturbances. The Serret-Frenet coordinate and nonlinear state transformations are used to transform the system into a SISO nonlinear chained system. By using the disturbance observer to compensate the influence of external dynamic disturbance, a composite generalized predictive anti-disturbance...
The adaptive output feedback controller is proposed for nonholonomic systems with nonlinear uncertainties and external disturbances. The disturbance is as the generalized system state. An extended state observer is designed for the uncertain external disturbance in order to ensure the global asymptotical stability of the closed loop system. A novel observer / estimator is introduced for state and...
The output maneuvering problem is defined as solving the geometric and dynamic tasks. Based on the backstepping approach with vector form, a new output feedback adaptive control scheme is presented to solve an output maneuvering problem for multi-input and multi-output (MIMO) nonlinear systems with parametric uncertainty. The geometric and the dynamic tasks are solved meanwhile the global stability...
In this paper, an adaptive output feedback control strategy is presented for a class of nonholomic systems in chained form with drift nonlinearity uncertainties. The control law is developed using the systematic strategy combines the input-state-scaling technique with the so-called backstepping techniques. In particular, a dynamic output feedback controller for general case of uncertain chained system...
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