Composite tracking control for a class of uncertain nonlinear control systems with uncertain deadzone nonlinearities

In this paper, the tracking problem for a class of uncertain nonlinear control systems with uncertain deadzone nonlinearities is considered. A composite tracking control is proposed such that the states of the feedback-controlled system track the desired trajectories with any pre-specified convergence rate. Meanwhile, an estimate of the tracking time is derived for such systems. A numerical example is also given to illustrate our main result.