Now showing items 1-20 of 89

    • 3-Phase Induction Motor Drive with PWM Modulator Using a 8-Bit Low Cost Micrcontroller 

      Küçükgüzel, E.; Bilgiç, Mehmet Oruç (2004)
      This paper describes a study on a well studied subject, driving 3-phase induction motor. But the hardware used for the study is different than the conventional 16-bit microcontrollers or DSPs. The aim of the project is to ...
    • A CNN based rotation invariant fingerprint recognition system 

      Çelik Mayadağlı, Tuba; Saatçı, Ertuğrul; Rifat, Edizkan (Istanbul Unıv, Fac Engineering, Elektrik-Elektronik Mühendisliği Bölümü, Avcılar Kampüsü, İstanbul, 34320, Turkey, 2017)
      This paper presents a Cellular Neural Networks (CNN) based rotation invariant fingerprint recognition system by keeping the hardware implementability in mind. Core point was used as a reference point and detection of the ...
    • A New Method for Doppler Centroid Estimation Based on Block Processing 

      Kartal, Mesut; Tunçay, Pelin (IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2013)
      Doppler centroid frequency is an important parameter for Synthetic Aperture Radar signal processing, which is used to design a proper matched filter in azimuth domain. Doppler centroid is estimated from the received data. ...
    • 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 ...
    • A synchronous frequency multiplier using phase-locked loop 

      Bilgiç, Mehmet Oruç (Taylor and Francis Online, 1982)
      A useful technique to multiply the frequency of an input square wave by n times without losing synchronization with an original waveform is proposed. A circuit which implements this technique for f = 50 Hz and n = 12 is ...
    • Accreditation for academic quality 

      Şenel, Seçil; Yalçın, Dilek (Int Scientific Conference SGEM, 14, Kilment Ohridsky BLVD, Sofia, 1797, Bulgaria, 2008)
      As it is well-known, the latest trend in academia has been the rapid growth of online or distance learning courses. Globalization makes mobility easy and possible. That is why a graduate has the opportunity to find not ...
    • 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 ...
    • Adjective Check List and Psychological Stress: Evidence From Turkey 

      Erkoç, Tuba; Kurt, Doğuş; Bayramoğlu, Oya; Yıldırım, Halil; Yıldırım, Osman (Int Scientific Conference SGEM, 14, Kilment Ohridsky BLVD, Sofia, 1797, Bulgaria, 2008)
      It is called stress when an individual begins to act different physically and mentally as a result of the fact that he or she is affected by the environment lie or she lived and worked in. To block or balance the process ...
    • Aircraft sensor fault detection based on unknown input observers 

      Çetin, Ömer; Kıyak, Emre; Kahvecioğlu, Ayşe (Emerald Group Publishing Limited, Howard House, Wagon Lane, Bingley Bd16 1Wa, W Yorkshire, England, 2008)
      Purpose - The purpose of this paper is to generate residuals which can be used to detect fault and isolate on a vertical takeoff and landing (VIOL) aircraft dynamic model. Design/methodology/approach - In the proposed ...
    • Amiyotrofik Lateral Skleroz Hastaları için Göz Kırpma Esaslı Yeni Bir Kolay İletişim Cihazı: EyePad® 

      Gürkan, Serkan; Gürkan, Güray; Uşaklı, Ali Bülent (2012)
      Bu bildiride, istemli göz kırpma hareketi sonucu oluşan elektrookülogram ve elektromiyogram sinyalleri ve özgün olarak tasarlanan sanal klavye (EyePad® ) vasıtası ile kontrol edilebilen ve amiyotrofik lateral skleroz ...
    • An Arduino UNO application: GPS guided unmanned ground vehicle 

      Bozik, Tugay; Gürkan, Güray (IEEE, 345 E 47Th St, New York, Ny 10017 USA, 2017)
      This paper presents an application of Arduino UNO to GPS guided unmanned vehicle. The four-wheeled small scale (55 cm x 25 cm) vehicle is capable of moving forward, rotating and consists of a GPS sensor, a magnetometer, a ...
    • An FPGA implementation of 2-D CNN Gabor-type filter 

      Saatçı, Ertuğrul; Cesur, Evren; Tavşanoğlu, Vedat; Kale, İzzet (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2007)
      A field programmable gate array (FPGA) implementation of the Gabor-type filter is presented. The implementation uses the forward Euler approximation with optimal step size to solve the CNN cell-state equation. The FPGA is ...
    • Analysis of brain connectivity changes after propofol injection by generalized partial directed coherence 

      Gürkan, Güray; Akan, Aydın; Özkan Seyhan, Tülay (Academic Press Inc Elsevier Science, 525 B St, Ste 1900, San Diego, Ca 92101-4495 Usa, 2014)
      In this paper we present a method for the analysis of multichannel EEG by using Generalized Partial Directed Coherence (gPDC) to extract cortical connectivity changes under anesthesia. 15 channel EEG data were recorded ...
    • Analysis of inductor-converter bridge by means of state-space averaging technique (superconducting magnet energy storage) 

      Bilgiç, Mehmet Oruç; Ehsani, M. (1988)
      The time-averaged behavior of an inductor-converter bridge (ICB) circuit has been analyzed using a state-space averaging technique. The application of the state-space averaging technique to the ICB circuit analysis is ...
    • Analysis of Single Flying Capacitor Converter by the State-Space Averaging Technique 

      Bilgiç, Mehmet Oruç; Ehsani, M. (IEEE, 1988)
      The single flying capacitor converter (SFCC) is a two-quadrant power supply for energy storage and transfer system. It has applications in nuclear research and pulsed power systems in which superconductive coils are used ...
    • Application of Stockwell Coherence To Prediction Of Alertness Under Anaesthesia 

      Gürkan, Güray; Akan, Aydın; Demiralp, Tamer (Brno Univ Technology Vut Press, Purkynova 118, Brno 61200, Czech Republic, 2010)
      In this paper, we represent an application of Stockwell Coherence to scalp EEG signals under anesthesia. By the analysis of overlapping, stationary data segments, we obtained the time-varying Stockwell coherence, which ...
    • Application of Stockwell Coherence To Prediction Of Alertness Under Anaesthesia 

      Gürkan, Güray; Akan, Aydın; Demiralp, Tamer (2010)
      In this paper, we represent an application of Stockwell Coherence to scalp EEG signals under anesthesia. By the analysis of overlapping, stationary data segments, we obtained the time-varying Stockwell coherence, which ...
    • Bandpass sampling of multiband signals by using geometric approach 

      Saatçı, Esra; Saatçı, Ertuğrul; Akan, Aydın (IEEE, 345 E 47th St, New York, Ny 10017 USA, 2017)
      This paper presents a simple and fast approach to f nd a minimum sampling frequency for multi-band signals. Instead of neighbor and boundary conditions, constraints on the sampling frequency were derived by using the ...
    • Bayesian Compressive Sensing for Ultra-Wideband Channel Models 

      Özgör, Mehmet; Erküçük, Serhat; Çırpan, Hakan Ali (Ieee, 345 E 47Th St, New York, Ny 10017 Usa, 2012-07-03)
      Considering the sparse structure of ultra-wideband (UWB) channels, compressive sensing (CS) is suitable for UWB channel estimation. Among various implementations of CS, the inclusion of Bayesian framework has shown potential ...