• Controller Synthesis with Guaranteed Closed-Loop Phase Constraints 

      Haddad, Wassim M.; Chellaboina, Vijay Sekhar; Gholami, Behnood (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2007-12)
      In this paper, we present an analysis and synthesis framework for guaranteeing that the phase of a single-input, single-output closed-loop transfer function is contained in the interval [-alpha, alpha] for a given alpha>0 ...
    • H₂ Suboptimal Estimation and Control for Nonnegative Dynamical Systems 

      Haddad, Wassim M.; Chellaboina, Vijay Sekhar; Gholami, Behnood (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2007-07)
      Linear matrix inequalities provide a powerful design framework for linear control problems. In this paper, we use linear matrix inequalities to develop H₂ (sub)optimal estimators and controllers for nonnegative dynamical ...