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This paper presents adaptive asymptotic tracking control of a class of uncertain strict-feedback discrete-time nonlinear systems subjected to parametric and nonparametric model uncertainties with unknown periodic time delay. Using states information in the past instant to compensate for non-parametric uncertainties at the current instant, constructive adaptive control is developed based on predicted...
In this paper, a general adaptive control design aiming at asymptotic tracking is developed for NARMA (nonlinear auto-regressive moving average) systems with periodic time-varying parameters and periodic unknown time delays in the nonlinear uncertainties. Various challenging issues like periodic varying parameters, periodic time delay and even nonlinear nonparametric uncertainty are addressed in this...
In this paper, adaptive control aiming at asymptotic tracking is investigated for a class of NARMA (nonlinear autoregressive moving average) systems with periodic time-varying parameters, unknown time delay and nonparametric nonlinear uncertainties. A time-varying dead zone with diminishing threshold is designed in the parameter estimator to deal with both parametric and nonparametric uncertainties...
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