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A robust adaptive control strategy was developed to force an underactuated surface vessel to follow a reference path, despite the presence of uncertain parameters and unstructured uncertainties including exogenous disturbances and measurement noise. The reference path can be a curve or a straight line. The proposed controller was designed by using Lyapunov’s direct method and sliding mode control...
The parametric non-strict-feedback and unmatched uncertainty of surface ship straight-line tracking control was considered. With the help of Lyapunov stability theory, considering the characteristics of the rudder system, a novel adaptive stepping algorithm is proposed, which could guarantee the closed-loop system to be uniformly ultimately bounded. The result of simulations present the validity and...
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