Robust control system design for sampled-data feedback systems

  • Shinji Hara
  • Pierre T. Kabamba
Conference paper
Part of the Lecture Notes in Control and Information Sciences book series (LNCIS, volume 183)


In this paper, we consider an optimization problem for sampled data control systems in the sense of the L 2 induced norm of the linear operator with continuous-time inputs and outputs. The problem is a worst case design and a counterpart of the H -optimization problem for purely continuous-time or discrete-time systems. Hence, it can be applied to the robust controller design taking account of the intersample behavior for sampled-data feedback systems. We show that the optimization problem for a 4-block generalized continuous-time plant with a digital controller can be solved with a γ-iteration on a certain discrete-time 4-block plant which depends on γ. The computation algorithm with three exponentiations is also derived.


Attenuation Level Digital Controller Sample Data System Robust Controller Design Sample Data Control System 
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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • Shinji Hara
    • 1
  • Pierre T. Kabamba
    • 2
  1. 1.Dept. of Control EngineeringTokyo Institute of TechnologyTokyoJapan
  2. 2.Aerospace Engineering Dept.The University of MichiganAnn ArborUSA

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