Now showing items 1-17 of 17

    • Associative memory design using overlapping decompositions 

      Akar, M.; Sezer, M. E. (Pergamon Press, 2001)
      This paper discusses the use of decomposition techniques in the design of associative memories via artificial neural networks. In particular, a disjoint decomposition which allows an independent design of lower-dimensional ...
    • A controllable spin prism 

      Hakiolu, T. (IOP Institute of Physics Publishing, 2009)
      Based on Khodas et al (2004 Phys. Rev. Lett. 92 086602), we propose a device acting like a controllable prism for an incident spin. The device is a large quantum well where Rashba and Dresselhaus spin-orbit interactions ...
    • Decentralized blocking zeros and the decentralized strong stabilization problem 

      Ünyelioğlu, K. A.; Özgüler, A. B.; Özgüner, Ü. (IEEE, 1995)
      This paper is concerned with a new system theoretic concept, decentralized blocking zeros, and its applications in the design of decentralized controllers for linear time-invariant finite-dimensional systems. The concept ...
    • Decentralized control and periodic feedback 

      Khargonekar P. P.; Özgüler, A. B. (IEEE, 1994)
      The decentralized stabilization problem for linear, discretetime, periodically time-varying plants using periodic controllers is considered. The main tool used is the technique of lifting a periodic system to a time-invariant ...
    • Discrete-time LQ optimal repetitive control 

      Köroğlu, H.; Morgül, Ö. (IEEE, 1999)
      LQ optimal repetitive control is developed in single-input single-output discrete-time signal/system framework. For a given plant and a stabilizing controller, the LQ optimal repetitive control system can be obtained by ...
    • A dynamic control law for the wave equation 

      Morgül, Ö. (Elsevier, 1994)
      We consider a system described by the one-dimensional linear wave equation in a bounded domain with appropriate boundary conditions. To stabilize the system, we propose a dynamic boundary controller applied at the free end ...
    • Observer based control of chaos 

      Solak, E.; Morgul, Ö.; Ersoy, U. (IEEE, Piscataway, NJ, United States, 1997)
      In this work we consider the control of forced chaotic oscillators. To obtain any desirable behavior, the system parameters are effectively modified using state feedback. The system states used in the feedback are estimated ...
    • On algebraic properties of general proper decentralized systems 

      Yu, R.; Sezer, M. E.; Gao, W. (Elsevier, 1993)
      The new concepts of the decentralized output feedback variable polynomial, the decentralized output feedback cycle index of general proper systems, and the geometric multiplicities of decentralized fixed modes are introduced. ...
    • On Switching H ∞ Controllers for a Class of LPV Systems 

      Yan, P.; Özbay, H. (Institute of Electrical and Electronics Engineers, 2003)
      We consider switching H ∞ controllers for a class of LPV systems scheduled along a measurable parameter trajectory. The candidate controllers are selected from a given controller set according to the switching rules based ...
    • Optimal control of single-stage hybrid systems with poisson arrivals and deterministic service times 

      Gokbayrak, K.; Misirci, M. (2005)
      We tackle an optimal control problem for a single-stage hybrid system with Poisson arrivals and deterministic service times. In our setting, not only that the optimization problem is non-convex and non-differentiable, but ...
    • Robust stability of discrete-time systems under parametric perturbations 

      Karan, M.; Sezer, M. E.; Ocali, O. (IEEE, 1994-05)
      Stability robustness analysis of a system under parametric perturbations is concerned with characterizing a region in the parameter space in which the system remains stable. In this paper, two methods are presented to ...
    • Sensitivity minimization by stable controllers for a class of unstable time-delay systems 

      Gümüşsoy, S.; Özbay H. (2006)
      In this paper sensitivity minimization problem is considered for a class of unstable time delay systems. Our goal is to find a stable controller stabilizing the feedback system and giving rise to smallest H∞ norm for the ...
    • Sensitivity reduction by stable controllers for mIMO infinite dimensional systems via the tangential nevanlinna-Pick interpolation 

      Wakaiki, M.; Yamamoto, Y.; Özbay, H. (IEEE, 2014)
      We study the problem of finding a stable stabilizing controller that satisfies a desired sensitivity level for an MIMO infinite dimensional system. The systems we consider have finitely many simple transmission zeros in C ...
    • Stability of delayed feedback controllers for discrete time systems 

      Morgül ,Ö. (Institute of Electrical and Electronics Engineers Inc., 2003)
      We consider the delayed feedback control (DFC) scheme for one dimensional discrete time systems. To analyze the stability, we construct a map whose fixed points correspond to the periodic orbits of the system to be controlled. ...
    • Stabilization and disturbance rejection for the wave equation 

      Morgul Omer (IEEE, Piscataway, NJ, United States, 1994)
      We consider a system described by the one dimensional linear wave equation in a bounded domain with appropriate boundary conditions. To stabilize the system, we propose a dynamic boundary controller applied at the free end ...
    • Stable controllers for robust stabilization of systems with infinitely many unstable poles 

      Wakaiki, M.; Yamamoto, Y.; Özbay, H. (Elsevier, 2013)
      This paper studies the problem of robust stabilization by a stable controller for a linear time-invariant single-input single-output infinite dimensional system. We consider a class of plants having finitely many simple ...
    • Tangential Nevanlinna-Pick interpolation for strong stabilization of MIMO distributed parameter systems 

      Wakaiki, M.; Yamamoto, Y.; Ozbay H. (2012)
      We study the problem of finding stable controllers that stabilize a multi-input multi-output distributed parameter system while simultaneously reducing the sensitivity of the system. The plants we consider have finitely ...