Now showing items 1-18 of 18

    • Approximations in compensator design: a duality 

      Özgüler, A. B.; Gündeş, A. N. (The Institution of Engineering and Technology (IET), 2002)
      In classical controller design, poles fat to the left of dominant poles are sometimes ignored. Similarly, in some proportional-integral compensation techniques, the controller zero is placed close to the origin and design ...
    • 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 ...
    • Effect of rf pumping frequency and rf input power on the flux to voltage transfer function of rf-SQUIDs 

      Akram, R.; Eker, T.; Bozbey, A.; Fardmanesh, M.; Schubert J.; Banzet, M. (2007)
      We present the results on the correlation between the flux to voltage transfer function, Vspp, of the rf-SQUID and the rf-bias frequency as well as rf-bias power. Measurements were performed for different SQUID gradiometer ...
    • Exact expression and tight bound on pairwise error probability for performance analysis of turbo codes over Nakagami-m fading channels 

      Ali, S. A.; Kambo, N. S.; İnce, E. A. (IEEE, 2007)
      This letter presents derivation for an exact and efficient expression on pairwise error probability over fully interleaved Nakagami-m fading channels under ideal channel state information at the decoder. As an outcome, ...
    • An exponential stability result for the wave equation 

      Morgül, Ö. (Elsevier, 2002)
      We consider a system described by the one-dimensional linear wave equation in a bounded domain with appropriate boundary conditions. To stabilize this system, we propose a dynamic boundary controller applied at the free ...
    • Improving AWE accuracy using multipoint Pade approximation 

      Celik, M.; Ocali, O.; Tan, M. A.; Atalar, Abdullah (IEEE, 1994)
      A new method is proposed for dominant pole-zero analysis of large linear circuits containing both lumped and distributed elements. This method is based on a multipoint Pade approximation. It finds a reduced order s-domain ...
    • Independent estimation of input and measurement delays for a hybrid vertical spring-mass-damper via harmonic transfer functions 

      Uyamk I.; Ankarali, M.M.; Cowan, N.J.; Saranli, U.; Morgül Ö.; Özbay H. (IFAC Secretariat, 2015)
      System identification of rhythmic locomotor systems is challenging due to the time-varying nature of their dynamics. Even though important aspects of these systems can be captured via explicit mechanics-based models, it ...
    • Modeling of subsonic cavity flows by neural networks 

      Efe, M.Ö.; Debiasi, M.; Özbay H.; Samimy, M. (2004)
      Influencing the behavior of a flow field is a core issue as its improvement can yield significant increase of the efficiency and performance of fluidic systems. On the other hand, the tools of classical control systems ...
    • 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 stabilization and stability robustness against small delays of some damped wave equations 

      Morgül, O. (IEEE, 1995)
      In this note we consider a system which can be modeled by two different one-dimensional damped wave equations in a bounded domain, both parameterized by a nonnegative damping constant. We assume that the system is fixed ...
    • Pole-zero computation in microwave circuits using multipoint Padé approximation 

      Celik, M.; Ocali, O.; Tan, M. A.; Atalar, Abdullah (Institute of Electrical and Electronics Engineers, 1995-01)
      A new method is proposed for dominant pole- zero (or pole-residue) analysis of large linear microwave circuits containing both lumped and distributed elements. The method is based on a multipoint Padé approximation. It ...
    • Robust LQ control for harmonic reference/disturbance signals 

      Köroǧlu, H.; Morgül, Ö (Institute of Electrical and Electronics Engineers, 2000)
      Linear Quadratic (LQ) controller design is considered for continuous-time systems with harmonic signals of known frequencies and it is shown that the design is reducible to an interpolation problem. All LQ optimal loops ...
    • Robust stabilization of the wave equation against small delays 

      Morgül, Ö. (Institute of Electrical and Electronics Engineers, 1994)
      In this paper we consider a system which can be modeled by (undamped) wave equation in a bounded domain. We assume that the system is fixed at one end and is controlled by a boundary controller at the other end. We also ...
    • Stabilization and disturbance rejection for the beam equation 

      Morgül, Ö. (IEEE, 2001)
      We consider a system described by the Euler-Bernoulli beam equation. For stabilization, we propose a dynamic boundary controller applied at the free end of the system. The transfer function of the controller is a marginally ...
    • Stabilization and disturbance rejection for the beam equation 

      Morgül, Ö. (IEEE, Orlando, FL, USA, 2001)
      We consider a system described by the Euler-Bernoulli beam equation in a bounded domain with appropriate boundary conditions. To stabilize the system, we propose a dynamic boundary controller applied at the free end of the ...
    • Stabilization and disturbance rejection for the wave equation 

      Morgül, Ö. (Institute of Electrical and Electronics Engineers, 1998-01)
      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 ...
    • 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 ...
    • A wideband and a Wide-Beamwidth acoustic transducer design for underwater acoustic communications 

      Elmasli, I. C.; Köymen, H. (IEEE, 2007)
      This paper is concerned with the design of an efficient, wideband and a wide-beamwidth resonant acoustic transducer for high frequency use. The general transducer structure which has two back-to-back quarter wave thick 1-3 ...