Letters: Robust stability for neural networks with time-varying delays and linear fractional uncertainties

  • Authors:
  • Tao Li;Lei Guo;Changyin Sun

  • Affiliations:
  • The Research Institute of Automation, Southeast University, Nanjing 210096,China;The School of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100083, China;The Research Institute of Automation, Southeast University, Nanjing 210096,China

  • Venue:
  • Neurocomputing
  • Year:
  • 2007

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Abstract

The problem of robust stability for neural networks with time-varying delays and parameter uncertainties is investigated in this paper. The parameter uncertainties are described to be of linear fractional form, which include the norm bounded uncertainties as a special case. By introducing a new Lyapunov-Krasovskii functional and considering the additional useful terms when estimating the upper bound of the derivative of Lyapunov functional, new delay-dependent stability criteria are established in term of linear matrix inequality (LMI). It is shown that the obtained criteria can provide less conservative results than some existing ones. Numerical examples are given to demonstrate the applicability of the proposed approach.