Browsing by Subject "Positive real functions"

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    • Article  

      Design of strictly positive real systems using constant output feedback 

      Huang, C. -H; Ioannou, Petros A.; Maroulas, J.; Safonov, M. G. (1999)
      In this paper, the authors present a linear matrix inequality (LMI) approach to the strictly positive real (SPR) synthesis problem: find an output feedback K such that the closed-loop system T(s) is SPR. The authors establish ...
    • Article  

      Strictly Positive Real Matrices and the Lefschetz-Kalman-Yakubovich Lemma 

      Tao, G.; Ioannou, Petros A. (1988)
      In this note we give necessary and sufficient conditions in the frequency domain for rational matrices to be strictly positive real. Based on this result, the matrix form of the Lefschetz-Kalman-Yakubovich lemma is proved, ...