Computer control under time-varying sampling period: An LMI gridding approach

  • Authors:
  • Antonio Sala

  • Affiliations:
  • Department of Systems Engineering and Control - DISA, Universidad Politécnica de Valencia, Camino de Vera, 14, E-46022 Valencia, Spain

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2005

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Abstract

This paper addresses computer control under time-varying sampling period and delayed actuation. The proposed approach uses time-varying observers and state-feedback controllers designed by means of linear matrix inequalities (LMI) and quadratic Lyapunov functions. The use of non-stationary Kalman filters is also discussed. A separation principle applies in some cases. A DC motor control setup shows the applicability of the approach in a real implementation.