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Lookup NU author(s): Dr Khalid Abidi
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© Springer Science+Business Media Singapore 2015. In this study a periodic adaptive control approach is discussed for a class of nonlinear discrete-time systems with time-varying parametric uncertainties which are periodic, and the only prior knowledge is the periodicity. The adaptive controller updates the parameters and the control signal periodically in a pointwise manner over one entire period, in the sequel achieves the asymptotic tracking convergence. The result is further extended to a scenario with mixed time-varying and time-invariant parameters, and a hybrid classical and periodic adaptation law is proposed to handle the scenario more appropriately. Extension of the periodic adaptation to systems with unknown input gain, higher order dynamics, and tracking problems are also discussed.
Author(s): Abidi K, Xu J-X
Editor(s): Abidi K; Xu J-X
Publication type: Book Chapter
Publication status: Published
Book Title: Advanced Discrete-Time Control : Designs and Applications
Print publication date: 07/04/2015
Online publication date: 26/03/2015
Acceptance date: 01/01/1900
Series Title: Studies in Systems, Decision and Control
Publisher: Springer International Publishing
Place Published: Singapore
Library holdings: Search Newcastle University Library for this item