Interpretation of the robust stability conditions appearing in adaptive control

  • R. Ortega
  • I. Landau
Session 2 Stability I
Part of the Lecture Notes in Control and Information Sciences book series (LNCIS, volume 62)


Some recent results on robust stability of direct discrete time adaptive controllers are analyzed through simple examples. The simultaneous existence of reduced order modelling and bounded output disturbances which is the rule and not the exception in practice, is shown to lead the estimator to a tradeoff between disturbance rejection and performance (in the sense of model following).


Adaptive Control Robust Stability Reduce Order Modelling Adaptive Controller Root Locus 
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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • R. Ortega
    • 1
  • I. Landau
    • 1
  1. 1.Greco (69) Systèmes Adaptatifs (C.N.R.S.) et Laboratoire d'Automatique de Grenoble E.N.S.I.E.G.Saint-Martin-d'Hères

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