Robust controller design of uncertain discrete time-delay systems with input saturation and disturbances

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Original languageEnglish
Article number6166422
Pages (from-to)2604-2609
Journal / PublicationIEEE Transactions on Automatic Control
Issue number10
Publication statusPublished - 2012


This technical note deals with the problem of robust controller design of uncertain discrete time-delay systems subject to control input saturation and bounded external disturbances. A sufficient condition is obtained, which guarantees the existence of state feedback controllers and an admissible initial condition domain such that the resulting closed-loop system is uniformly exponentially convergent to a ball with certain exponential decay rate for every initial condition emanating from the admissible domain. An iterative linear matrix inequality relaxation scheme can be used to construct desired state feedback controllers. A simulation example is provided to demonstrate the effectiveness of the proposed method. © 1963-2012 IEEE.

Research Area(s)

  • Bounded disturbances, discrete systems, input saturation, robust control, state feedback, time-varying delays