Now showing items 64-83 of 127

  • Immitance data modelling via linear interpolation techniques 

    Yarman, Bekir Sıddık Binboğa; Aksen, Ahmet; Kılınç, Ali (IEEE, 2002)
    With the advancement of the manufacturing technologies to produce new generation analog/digital communication systems, immitance data modelling has gained renewed importance in the literature. Specifically, models are ...
  • Improving semantic segmentation with generalized models of local context 

    Ateş, Hasan Fehmi; Sünetci, Sercan (Springer International Publishing AG, 2017)
    Semantic segmentation (i.e. image parsing) aims to annotate each image pixel with its corresponding semantic class label. Spatially consistent labeling of the image requires an accurate description and modeling of the local ...
  • Integration of 2D CMUT arrays with front-end electronics for volumetric ultrasound imaging 

    Wygant, Ira O.; Zhuang, Xuefeng; Yeh, David T.; Oralkan, Ömer; Ergün, Arif Şanlı; Karaman, Mustafa; Khuri-Yakub, Butrus T. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2008-02)
    For three-dimensional (3D) ultrasound imaging, connecting elements of a two-dimensional (2D) transducer array to the imaging system's front-end electronics is a challenge because of the large number of array elements and ...
  • İmge kodlaması için dalgacık paketlerinde küresel gösterim 

    Ateş, Hasan Fehmi; Tamer, Engin (IEEE, 2008)
    In this paper, we present an adaptation of the spherical coder, which has been developed for wavelet transform, to wavelet packets. This coder uses local energy as a direct measure to differentiate the spatial informatin ...
  • Joint ML timing and phase estimation in OFDM systems using the EM algorithm 

    Panayırcı, Erdal; Georghiades, Costas N. (IEEE, 2000)
    In this paper, a computationally efficient algorithm is presented for joint maximum likelihood (ML) timing and carrier phase estimation of OFDM systems employing M-PSK modulation scheme with additive Gauissian noise, based ...
  • Jointly Optimal Chunk and Power Allocation in Uplink SC-FDMA 

    Mert, Teoman; Kaya, Onur; Çırpan, Hakan Ali (IEEE, 2013-06-09)
    For a single carrier frequency division multiple access (SC-FDMA) system, we obtain the jointly optimal power and chunk allocation policies which maximize the sum rate. Our solution is applicable to both localized and ...
  • Karma CPU + FPGA Yapısı Üzerinde Tasarlanmış Bilgisayar Destekli Sperm Analizi Sistemi 

    Savkay, Osman Levent; Tavşanoglu, Vedat; Yalçın, Müştak Erhan; Cesur, Evren (IEEE, 2015-05-16)
    In this paper a Computer Assisted Semen Analysis (CASA) system designed on a hybrid CPU + FPGA hardware platform is presented. Multiple moving object tracking technique is used for spermatozoa motility analysis and an ...
  • Kernel kod-tablosu kodlaması ile sahne etiketleme 

    Ateş, Hasan Fehmi; Sünetci, Sercan (IEEE, 2017)
    Superpixel based methods have recently shown success in scene segmentation and labeling. In scene labeling, a superpixel algorithm is used first to segment the image into visually consistent small regions; then several ...
  • Kernel likelihood estimation for superpixel image parsing 

    Ateş, Hasan Fehmi; Sünetci, Sercan; Ak, Kenan E. (Springer Verlag, 2016)
    In superpixel-based image parsing, the image is first segmented into visually consistent small regions, i.e. superpixels; then superpixels are parsed into different categories. SuperParsing algorithm provides an elegant ...
  • A low loss, low voltage and high Q active inductor with multi-regulated cascade stage for RF applications 

    Momen, Hadi Ghasemzadeh; Yazgı, Metin; Köprü, Ramazan (Institute of Electrical and Electronics Engineers Inc., 2015-12-06)
    Numerous structural planning of active inductors have been proposed as of not long ago in literature which showing tuning conceivable outcomes, low chip area and offering integration facility, they constitute promising ...
  • A method for low-pass filter designing by commensurate transmission lines 

    Köprü, Ramazan; Momen, Hadi Ghasemzadeh (IEEE, 2016)
    It is well known that the complex Richards-Plane is a transformed domain of Laplace-Plane which is obtained under a tangent hyperbolic mapping. Network functions generated in terms of Richards's frequency are periodic in ...
  • Microwave amplifier design for mobile communication via immittance data modelling 

    Kılınç, Ali; Pınarbaşı, Hacı; Yarman, Bekir Sıddık Binboğa; Aksen, Ahmet (IEEE, 2003)
    In this paper, a practical broadband microwave amplifier design algorithm based on immittance data modelling is presented. In the course of design, first, the optimum input and output terminations for the active device are ...
  • MIMO sinyalleri için uzay-zaman blok kodu klasifikasyonu 

    Öner, Mustafa Mengüç; Turan, Merve; Çırpan, Hakan Ali (IEEE, 2014-04-26)
    Signal identification techniques developed for the purpose of blind and noncooperative identification of the transmission parameters of unknown communication signals have been employed both in military and civilian ...
  • Mixed element wideband microwave amplifier design via simplified real frequency technique 

    Kılınç, Sedat; Köprü, Ramazan; Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (IEEE Computer Society, 2014-12-12)
    In this study, we illustrate the design and implementation of a wideband microwave small-signal amplifier composed of mixed elements. The design is based on Simplified Real Frequency Technique (SRFT). A design of low power ...
  • MOS only oscillator using adder and subtractor circuits 

    Yıldız, Merih; Göknar, Cem; Minaei, Shahram (IEEE, 2015-11-26)
    In this paper an NMOS based sinusoidal oscillator is presented. The circuit is constructed with voltage-mode (VM) NMOS-based analog adder and subtractor circuits which respectively perform V-1+V-2 and V-1-V-2 operations ...
  • Multiband and concurrent matching network design via brune sections 

    Yıldız, Serkan; Aksen, Ahmet; Binboğa Yarman, Bekir Sıddık (IEEE, 2017)
    A general multiband matching network design methodology for complex load impedance terminations is presented. In the proposed approach, Real Frequency Techniques (RFT) are used to define and optimize the multiband matching ...
  • Multiband matching network design via transformation based real frequency approach 

    Yıldız, Serkan; Aksen, Ahmet; Yarman, Bekir Sıddık Binboǧa (IEEE, 2016)
    In this paper, a new method is presented for multiband matching network design. Low pass to band pass (LP-BP) frequency transformation is incorporated with the parametric Real Frequency Technique (RFT) for creating multiband ...
  • Mülteci barınaklarının uydu görüntülerinden çoklu-sınıflı çizge-kesme bölütleme ve gölge bilgisi kullanılarak otomatik sezimi 

    Ateş, Hasan Fehmi; Kahraman, Fatih; Kucur Ergünay, Şerife Seda (IEEE, 2014-04-23)
    This paper adresses the automated detection and enumeration of the dwellings/tents within the refugee camp areas using satellite and aerial images. The fact that dwellings inside the refugee camps correspond to very small, ...
  • A new algorithm for joint time and phase synchronization in OFDM systems 

    Panayırcı, Erdal (IEEE, 2000)
    In this paper, a computationally efficient algorithm is presented for joint maximum likelihood (ML) timing and carrier phase synchronization of OFDM systems employing M-PSK modulation scheme with additive Gaussian noise, ...
  • A New Block Markov Coding Strategy for Pairwise and Collective Cooperation in the Three User MAC 

    Edemen, Çağatay; Kaya, Onur (IEEE, 2013)
    For a three user cooperative multiple access channel (MAC), we propose a new block Markov superposition encoding strategy, which enables all three users to cooperate collectively as well as in pairs. We obtain the resulting ...