Now showing items 1-16 of 16

    • An audio watermarking algorithm via zero assigned filter banks 

      Yücel, Zeynep; Özgüler, A. Bülent (IEEE, 2005)
      In order to identify the owner and distributor of digital data, a watermarking scheme for audio files is proposed in frequency domain. The scheme satisfies the imperceptibility and persistence requirements and is robust ...
    • Conewise linear systems: a characterization of transitive cones in 3D-space 

      Özgüler, A. Bülent; Zakwan, Muhammad (The European Control Association (EUCA), 2019-06)
      A spatial (3D) piecewise linear system with multiple modes having conewise state spaces is considered. A single mode in this system is called transitive from one (respectively, two) of its borders if every trajectory that ...
    • Decentralized strong stabilization problem 

      Özgüler, A. Bülent; Ünyelioğlu, Konur A. (IEEE, 1992-06)
      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 ...
    • Detection of epileptic indicators on clinical subbands of EEG 

      Yücel, Zeynep; Özgüler, A. Bülent (IEEE, 2008-08)
      Symptoms of epilepsy, which is characterized by abnormal brain electrical activity, can be observed on electroencephalography (EEG) signal. This paper employs models of chaotic measures on standard clinical subbands of EEG ...
    • A Differential game model of opinion dynamics: Accord and discord as nash equilibria 

      Niazi, Muhammad Umar B.; Özgüler, A. Bülent (Birkhauser, 2020-03)
      This paper presents a noncooperative differential (dynamic) game model of opinion dynamics with open-loop information structure. In this game, the agents’ motives are shaped by their expectations of the nature of others’ ...
    • EEG işareti üzerinde sara ataklarının ve sara belirtisi işaretlerin bulunması 

      Yücel, Zeynep; Özgüler, A. Bülent (2008-04)
      Symptoms of epilepsy, which is characterized by abnormal brain electrical activity, can be observed on electroencephalography (EEG) signal. This paper employs models of chaotic measures of EEG and aims to help detection ...
    • Field of values of matrix polytopes 

      Özgüler, A. Bülent; Saadaoui, Karim (Anadolu Üniversitesi, 2000)
      The tool of field of values (also known as the classical numerical range) is used to recover most results available in the literature and to obtain some new one s concerning Hurwitz and Schur stability of matrix polytopes. ...
    • HMM Based behavior recognition of laboratory animals 

      Sandıkçı, S; Duygulu, Pınar; Özgüler, A. Bülent (ICPR, 2012)
      In pharmacological experiments, a popular method to discover the effects of psychotherapeutic drugs is to monitor behaviors of laboratory mice subjected to drugs by cameras. Automating behavior analysis of laboratory ...
    • An image watermarking algorithm via Zero Assigned Filter Banks 

      Yücel, Zeyep; Özgüler, A. Bülent (IEEE, 2005-12)
      In this paper a new method for digital image watermarking based on Zero Assigned Filter Banks and Embedded Zero Tree Wavelet (EZW) algorithm is presented. An image is partitioned into 128 × 128 subblocks and each block is ...
    • On stabilizing with PID controllers 

      Saadaoui, K.; Özgüler, A. Bülent (IEEE, 2007-06)
      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 ...
    • PI and low-order controllers for two-channel decentralized systems 

      Gündeş, A.N.; Özgüler, A. Bülent (IEEE, 2003-06)
      A systematic design method is proposed for simple loworder decentralized controllers in the cascaded form of proportional-integral and first-order blocks. The plant is linear, time-invariant and has two channels, ...
    • PID controller synthesis for a class of unstable MIMO plants with I/O delays 

      Gündeş, A. N.; Özbay, Hitay; Özgüler, A. Bülent (Elsevier, 2006-07)
      Conditions are presented for closed-loop stabilizability of linear time-invariant (LTI) multi-input, multi-output (MIMO) plants with I/O delays (time delays in the input and/or output channels) using PID (Proportional + ...
    • Plant Order Reduction for Controller Design 

      Özgüler, A. Bülent; Gündeş, A. N. (IEEE, 2003-06)
      Two dual methods of plant order reduction for controller design are proposed for linear, time-invariant, multi-input multi-output systems. The model reduction methods are tailored towards closed-loop stability and performance ...
    • Program outcomes: the core of program accreditation 

      Özgüler, A. Bülent; Erçil, M. Y.; Payzın, A. E.; Platin, B. E. (Higher Education Academy * Engineering Subject Centre, 2013-11)
    • Swarming behavior as Nash equilibrium 

      Özgüler, A. Bülent; Yıldız, Aykut (Elsevier, 2012-09)
      The question of whether swarms can form as a result of a non-cooperative game played by individuals is shown here to have an affirmative answer. A dynamic game played by N agents in one-dimensional motion is introduced and ...
    • Tracking and regulation control of a 2-DOF robot arm with unbalance 

      Güler, Samet; Özgüler, A. Bülent (IEEE, 2012-08)
      Servomechanism synthesis for a two degree-of-freedom robot arm assembled on a vessel and affected from sea disturbances is considered. Dynamic equations of the robot arm with unbalance and of an approximate base disturbance ...