Abstract
This paper addresses the issue of adaptive prescribed performance control for a category of uncertain nonlinear systems with fuzzy dead-zone input. Through employing the neural networks (NNs) and designing a state observer, the unknown functions and unmeasured system states are approximated, respectively. The problem of fuzzification caused from dead-zone input is handled via using the center-of-gravity theorem. Then, an integrated fuzzy controller is constructed by adopting integrated design approach. It is proved that the proposed integrated fuzzy controller can ensure that all the signals of the closed-loop system are semi-globally uniformly ultimately bounded (SGUUB) and the tracking error converges to a prescribed domain. Finally, some simulation results are shown to demonstrate feasibility of the presented method.
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