Now showing items 1-20 of 40

    • 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 ...
    • Decentralized stabilization of interconnected systems: Structural conditions 

      Yu, R.; Sezer, M. E. (1992)
      A unified framework is provided for the design of high-gain decentralized controllers for the stabilization of several classes of interconnected systems. These classes are characterized in terms of the structure of the ...
    • Decentralized stabilization: characterization of all solutions and genericity aspects 

      Ünyelioğlu, Konur Alp; Özgüler, Arif Bülent (Taylor & Francis, 1992)
      Electrical and The decentralized stabilization problem of multivariable finite-dimensional systems is considered in a fractional set-up. A new synthesis procedure for decentralized stabilizing compensators is proposed. The ...
    • Decentralized strong stabilization problem 

      Özgüler, A. B.; Ünyelioğlu, K. A. (American Automatic Control Council, 1992)
      In the decentralized strong stabilization problem for linear time-invariant finite-dimensional systems, the objective is to stabilize a given plant using a stable decentralized controller. A solvability condition for this ...
    • 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 ...
    • Dynamic boundary control of the timoshenko beam 

      Morgül, Ö. (Pergamon Press, 1992)
      We consider a clamped-free Timoshenko beam. To stabilize the beam vibrations, we propose a dynamic boundary control law applied at the free end of the beam. We prove that with the proposed control law, the beam vibrations ...
    • 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 ...
    • Evidential logical sensing using multiple sonars for the identification of target primitives in a mobile robot's environment 

      Erkmen, A.; Ayrulu, B.; Barshan, B.; Erkmen, İ. (IEEE (Institute of Electrical and Electronics Engineers), 1996)
      Physical models are used to model reflections from target primitives commonly encountered in mobile robot applications. These targets are differentiated by employing a multi-transducer pulse/echo system which relies on ...
    • Fe promoted NOx storage materials: structural properties and NOx uptake 

      Kayhan, E.; Andonova, S. M.; Şentürk, G. S.; Chusuei, C. C.; Ozensoy, E. (American Chemical Society, 2010)
      Fe promoted NOx storage materials were synthesized in the form of FeOx/BaO/Al2O3 ternary oxides with varying BaO (8 and 20 wt %) and Fe (5 and 10 wt %) contents. Synthesized NOx storage materials were investigated via TEM, ...
    • Fixed zeros of decentralized control systems 

      ÜÜnyelioglu, K. A.; Özgüner, Ü.; Özgüler, A. B. (IEEE, 2000)
      This paper considers the notion of decentralized fixed zeros for linear, time-invariant, finite-dimensional systems. For an N-channel plant that is free of unstable decentralized fixed modes, an unstable decentralized fixed ...
    • Global stabilization via local stabilizing actions 

      Özgüler, A. B. (Institute of Electrical and Electronics Engineers, 2006)
      Stabilization of a linear, time-invariant system via stabilization of its main diagonal subsytems is the underlying problem in all diagonal dominance techniques for decentralized control. In these techniques as well as all ...
    • Local convex directions for Hurwitz stable polynomials 

      Özgüler, A. B.; Saadaoui, K. (IEEE, 2002)
      A new condition for a polynomial p(s) to be a local convex direction for a Hurwitz stable polynomial q(s) is derived. The condition is in terms of polynomials associated with the even and odd parts of p(s) and q(s), and ...
    • Local pinning of networks of multi-agent systems with transmission and pinning delays 

      Lu, W.; Atay, F. M. (Institute of Electrical and Electronics Engineers, 2016)
      We study the stability of networks of multi-agent systems with local pinning strategies and two types of time delays, namely the transmission delay in the network and the pinning delay of the controllers. Sufficient ...
    • A Note on Robust Stability Bounds 

      Sezer, M. E.; Siuak, D. D. (IEEE, 1989)
      The purpose of this note is to comment on stability robustness bounds for linear systems with multiple uncertain parameters, which were obtained via Lyapunov functions. Simple examples are used to illustrate the effects ...
    • On Smith predictor-based controller design for systems with integral action and time delay 

      Tasdelen, U.; Ozbay H. (2013)
      A new Smith predictor based controller is proposed for systems with integral action and flexible modes under input-output time-delay. The design uses controller parametrization and aims to achieve a set of performance and ...
    • On stabilizing with PID controllers 

      Saadaoui, K.; Özgüler, A.B. (2007)
      In this paper we give an algorithm that determines the set of all stabilizing proportional-integral-derivative (PID) controllers that places the poles of the closed loop system in a desired stability region S. The algorithm ...
    • 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 ...
    • On the boundary control of a flexible robot arm 

      Morgül, Ö. (Institute of Electrical and Electronics Engineers, 2001)
      We consider a flexible robot arm modeled as a single flexible link clamped to a rigid body. We assume that the system performs only planar motion. For this system, we pose two control problems; namely, the orientation and ...
    • On the design of dynamic associative neural memories 

      Savran, M. E.; Morgül, Ö. (IEEE, 1994)
      We consider the design problem for a class of discrete-time and continuous-time neural networks. We obtain a characterization of all connection weights that store a given set of vectors into the network; that is, each given ...