Sliding mode high-gain observers for a class of uncertain nonlinear systems

Kalyana C. Veluvolu, Dongik Lee

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

A robust high-gain observer for state and unknown input estimations for a special class of single-output nonlinear systems is developed in this article. Ensuring the observability of the unknown input with respect to the output, the disturbance can be estimated from the sliding surface. In the sliding mode, the convergence of the estimation error dynamics is proven similar to the analysis of high-gain observers.

Original languageEnglish
Pages (from-to)329-334
Number of pages6
JournalApplied Mathematics Letters
Volume24
Issue number3
DOIs
StatePublished - Mar 2011

Keywords

  • High-gain observers
  • Lyapunov equations
  • Nonlinear observers
  • Sliding modes

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