Now showing items 1-10 of 66

    • Channel estimation for OFDM-IM systems 

      Acar, Yusuf; Aldırmaz Çolak, sultan; Başar, Ertuğrul (2019)
      Orthogonal frequency division multiplexing with index modulation (OFDM-IM) has been recently proposed to increase the spectral efficiency and improve the error performance of multicarrier communication systems. However, ...
    • High performance OFDM with index modulation 

      Acar, Yusuf; Cooklev, Todor (2019-02)
      Orthogonal frequency division multiplexing (OFDM) with index modulation (OFDM-IM), which has been recently proposed as an alternative waveform to classical OFDM, generally achieves lower bit error rate compared to classical ...
    • Incu-Stream 1.0: An Open-Hardware Live-Cell Imaging System Based on Inverted Bright-Field Microscopy and Automated Mechanical Scanning for Real-Time and Long-Term Imaging of Microplates in Incubator 

      GÜRKAN, GÜRAY; Gürkan, Koray (2019)
      Microplate (i.e. microwell plate) is a flat plate that has a specific number of wells to be used as small test tubes in cell-culture studies. In most of the low-budget mammalian cell study laboratories, highly skilled ...
    • Analysis of linear lung models based on state-space models 

      Saatçi, Esra; Saatçi, Ertuğrul; Akan, Aydın (Elsevier Ireland Ltd., 2020-01)
      Background and Objectives: Linear parametric respiratory system models have been used in the model-based analysis of the respiratory system. Although there are studies exploring the physiological correctness and fitting ...
    • Texture Analysis Based Iris Recognition 

      Gürkan, Güray; Akan, Aydın (2006-01)
      In this paper, we present a new method for personal identification, based on iris patterns. The method composed of iris image acquisition, image preprocessing, feature extraction and finally decision stages. Normalized ...
    • A novel EOG-based wireless rapid communication device for people with motor neuron diseases 

      Uşaklı, Ali Bülent; Gürkan, Serkan; Gürkan, Güray (Taylor and Francis Online, 2018-11-22)
      In this study, a new electrooculography (EOG) based system that provides efficient communication for people suffered from motor neuron diseases is presented. The system consists of two distinct devices. The first device ...
    • Adaptive dual-mode OFDM with index modulation 

      Aldırmaz Çolak, Sultan; Acar, Yusuf; Başar, Ertuğrul (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2018-10)
      With the integration of the index modulation concept, the popular OFDM has gained an appealing new dimension. However, OFDM with index modulation (OFDM-IM) causes a decrease in data rate for higher order modulations due ...
    • Fuzzy logic based control of switched reluctance motor to reduce torque ripple 

      Derdiyok, A.; İnanç, N.; Özbulur, Veysel; Pastacı, Halit; Bilgiç, Mehmet Oruç (IEEE, 1997)
      This paper presents torque ripple reduction of a switched reluctance motor (SRM) by using a fuzzy speed controller. For this purpose, current control is applied with a fuzzy speed controller. The fuzzy controller adjusts ...
    • Improving performance of switched reluctance motor by fuzzy logic controller 

      Derdiyok, A.; Inanc, N.; Özbulur, Veysel; Bilgiç, Mehmet Oruç (1999-04)
      This paper presents torque ripple minimization of a switched reluctance motor (SRM) by using a fuzzy controller, The nonlinear model of the SRM and the mathematical model of the converter circuit are driven. The motor used ...
    • Power converters as natural gyrators 

      Ehsani, Mehrdad; Husain, Iqbal; Bilgiç, Mehmet Oruç (IEEE, 1993-12)
      The authors investigate the open-loop gyrator behavior of a class of DC-DC converters that are characterized by double bridges. If the switching frequency of the double bridge converter is high enough with respect to its ...