Yazar "Işık University, Faculty of Engineering, Department of Electrical-Electronics Engineering" için listeleme
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Analysis of Nonlinear Dynamics of Neural Networks
Arık, Sabri; Park, Juhyun; Huang, Tingwen; Oliveira, José J (Hindawi Publishing Corporation, 2013)[No abstract available] -
Analysis of self noise in a clock recovery systems with a high-order nonlinearity
Panayırcı, Erdal (Bogazici University Bebek, 1999)This paper presents a new technique to compute efficiently the I and Q spectra, and the I - Q cross-spectrum of the self noise appearing at the output of the zero-memory, high order nonlinear device employed in a clock ... -
Analysis of self noise in a clock recovery systems with a high-order nonlinearity
Panayırcı, Erdal (IEEE, 1998)This paper presents a new technique to compute efficiently the I and Q spectra, and the I - Q cross-spectrum of the self noise appearing at the output of the zero-memory, high order nonlinear device employed in a clock ... -
Analysis of self-noise in a clock recovery system with a high-order nonlinearity
Panayırcı, Erdal (IEEE-INST Electrical Electronics Engineers Inc, 2003-11)This correspondence presents a new technique to compute efficiently the spectra of the in-phase (I) and quadrature (Q) components as well as the cross-spectrum of the in-phase and quadrature (I-Q) components of self-noise ... -
An analysis of stability of a class of neutral-type neural networks with discrete time delays
Orman, Zeynep; Arık, Sabri (Hindawi Publishing Corporation, 2013)The problem of existence, uniqueness, and global asymptotic stability is considered for the class of neutral-type neural network model with discrete time delays. By employing a suitable Lyapunov functional and using the ... -
An analysis of stability of uncertain neural networks with multiple time delays
Faydasıçok, Özlem; Arık, Sabri (Pergamon-Elsevier Science Ltd, 2013-09)This paper deals with the problem of robust stability of neural networks with multiple time delays with the class of unbounded and nondecreasing activation functions. By constructing a suitable Lyapunov functional and ... -
An analysis of the mortgage account as a discrete-time LTI system
Tavşanoğlu, Ahmet Vedat (IEEE, 2014)This paper presents a comprehensive mathematical analysis of the mortgage account with the aim of intentionally setting up a non-physical example for the teaching of discrete-time LTI systems in the courses signals and ... -
An annular CMUT array beamforming system for high-frequency side looking IVUS imaging
Satır, Sarp; Gürün, Gökçe; Zahorian, Jaime S.; Karaman, Mustafa; Hasler, Paul E.; Değertekin, Fahrettin Levent (2010)A CMUT annular array system for Side-Looking Intravascular Ultrasound (SL-IVUS) with fixed transmit and dynamic receive focusing capabilities has been developed. The system was experimentally characterized and validated ... -
Annular CMUT arrays for side looking intravascular ultrasound imaging
Zahorian, Jaime; Güldiken, Rasim Oytun; Gürün, Gökçe; Qureshi, Muhammad Shakeel; Balantekin, Müjdat; Değertekin, Fahrettin Levent; Carlier, Stephane; Şişman, Alper; Karaman, Mustafa (IEEE, 2007)Although side looking intravascular ultrasound (SL-IVUS) imaging systems using single element piezoelectric transducers set the resolution standard in the assessment of the extent of coronary artery disease, improvements ... -
Annular-ring CMUT arrays for forward-looking IVUS: Transducer characterization and imaging
Değertekin, Fahrettin Levent; Güldiken, Rasim Oytun; Karaman, Mustafa (IEEE, 2006-02)In this study, a 64-element, 1.15-mm diameter annular-ring capacitive micromachined ultrasonic transducer (CMUT) array was characterized and used for forward-looking intravascular ultrasound (IVUS) imaging tests. The array ... -
Architecture of a fully pipelined real-time cellular neural network emulatort
Yıldız, Nerhun; Cesur, Evren; Kayaer, Kamer; Tavşanoğlu, Ahmet Vedat; Alpay, Murathan (IEEE-INST Electrical Electronics Engineers Inc, 2015-01)In this paper, architecture of a Real-Time Cellular Neural Network (CNN) Processor (RTCNNP-v2) is given and the implementation results are discussed. The proposed architecture has a fully pipelined structure, capable of ... -
Battle damage assessment based on self-similarity and contextual modeling of buildings in dense urban areas
Ateş, Hasan Fehmi; İmamoğlu, Mümin; Kahraman, Fatih (IEEE, 2016)Assessment of battle damages is significant both for tactical planning and for after-war relief efforts. In this study damaged buildings are detected using self-similarity descriptor in pre- and post-war satellite images. ... -
Beamforming and hardware design for a multichannel front-end integrated circuit for real-time 3D catheter-based ultrasonic imaging
Wygant, Ira O.; Karaman, Mustafa; Oralkan, Ömer; Khuri-Yakub, Butrus Thomas (SPIE-Int Soc Optical Engineering, 2006)We are working on integrating front-end electronics with the ultrasound transducer array for real-time 3D ultrasound imaging systems. We achieve this integration by flip-chip bonding a two-dimensional transducer array to ... -
Biometric identification using fingertip electrocardiogram signals
Güven, Gökhan; Gürkan, Hakan; Güz, Ümit (Springer London Ltd, 2018-07)In this research work, we present a newly fingertip electrocardiogram (ECG) data acquisition device capable of recording the lead-1 ECG signal through the right- and left-hand thumb fingers. The proposed device is ... -
Bir otomatik hedef tanıma algoritmasının geliştirilmesi
Aldemir, Erdoğan; Yıldız, Nerhun; Tavşanoğlu, Ahmet Vedat (IEEE, 2013-04-24)Bu bildiri kapsamında bir Otomatik Hedef Tanıma (OHT) sistemi ele alınarak geliştirilmiş ve geliştirilen sistemin Matlab benzetimleri bildiride sunulmuştur. İkinci olarak OHT sistemlerinde kullanılan ve literatürde sıkça ... -
A bit-serial sum of absolute difference accelerator for variable block size motion estimation of H.264
Fatemi, Mohammad Reza Hosseiny; Ateş, Hasan Fehmi; Salleh, Rosli Bin (IEEE, 2009)Bit-serial architectures offer a number of attractive features over their bit-parallel counterparts such as smaller area cost, lower density interconnection, a reduced number of pins, higher clock frequency, simpler routing ... -
Blind channel estimation for space-time coding systems with Baum-Welch algorithm
Çırpan, Hakan Ali; Panayırcı, Erdal (IEEE, 2002)In recent years, space-time coding is proposed to provide significant capacity gains over the traditional communication systems in fading wireless channels. In this paper, we consider the problem of blind estimation of the ... -
Broadband and multiband doherty amplifiers
Grebennikov, Andrei; Kumar, Narendra; Yarman, Bekir Sıddık Binboğa (CRC Press Taylor & Francis Group, 2016)[No abstract available] -
Broadband matching of PA-To-PCB interconnection for X-band wireless power transfer
Köprü, Ramazan (Institute of Electrical and Electronics Engineers Inc., 2019-08)Design and simulation of a microwave wideband microstrip unit element bandpass matching network is presented, potential use might be a broadband WPT (microwave wireless power transfer) application in X-band frequencies ... -
A broadband microwave amplifier design by means of immittance based data modelling tool
Kılınç, Ali; Pınarbaşı, Hacı; Şengül, Metin; Yarman, Bekir Sıddık Binboğa (IEEE, 2002)In this paper a practical broadband microwave amplifier design algorithm is introduced utilizing the immittance data-modelling tool. In the course of design, first, the optimum input and output terminations for the active ...