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Output Feedback Regulation of a Chain of Integrators With an Unknown Time-Varying Delay in the Input

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2 Author(s)
Ho-Lim Choi ; Dept. of Electr. Eng., Dong-A Univ., Pusan, South Korea ; Jong-Tae Lim

We consider a problem of global regulation of a chain of integrators that has an unknown time-varying delay in the input. In contrast to the previous works in the literature, the upper bound of delay is not known. Moreover, there is no given information on the time-varying rate of delay, either. Using the dynamic gain approach inspired by the method in and the control structure of together, we construct an adaptive output feedback controller to solve the considered control problem. The only requirement is that the time-varying delay is bounded.

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Automatic Control, IEEE Transactions on  (Volume:55 ,  Issue: 1 )