Now showing items 62-81 of 111

  • 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 ...
  • 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 ...
  • 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 ...
  • A new high performance CMOS active inductor 

    Köprü, Ramazan; Momen, Hadi Ghasemzadeh; Yazgı, Metin; Saatlo, Ali Naderi (IEEE, 2016)
    A new high-performance active inductor with ability to tune its self-resonance frequency and quality factor without affecting each other is presented in this letter. Using the input transistor of active inductor in cascoding ...
  • A new software tool to model measured RF-data with optimum circuit topology 

    Yarman, Bekir Sıddık Binboğa; Kılınç, Ali; Aksen, Ahmet (IEEE, 2004)
    In this paper a new S/W tool is presented to model measured RF data employing immitance interpolation techniques. This S/W tool also employs a recently developed sub-routine, which generates circuit models with least number ...
  • A new speech modeling method: SYMPES 

    Güz, Ümit; Gürkan, Hakan; Yarman, Bekir Sıddık Binboğa (IEEE, 2006)
    In this paper, the new method of speech modeling which is called SYMPES is introduced and it is compared with the commercially available methods. It is shown that for the same compression ratio or better, SYMPES yields ...
  • Non-data aided EM-based channel estimation for OFDM systems with time-varying fading channels 

    Panayırcı, Erdal; Çırpan, Hakan Ali (KLUWER ACADEMIC PUBLISHERS, 2002)
    In this paper, a computationally efficient algorithm is presented for maximum a posteriori (MAP) channel estimation for OFDM systems employing M-PSK modulation scheme with additive Gaussian noise, based on the Expectation ...
  • A Novel Algorithm for MIMO Signal Classification Using Higher-Order Cumulants 

    Muehlhaus, Michael S.; Öner, Mustafa Mengüç; Dobre, Octavia A.; Jaekel, Holger U.; Jondral, Friedrich K. (IEEE, 2013)
    Automatic modulation classification (AMC) of unknown communications signals is employed in both commercial and military applications, such as cognitive radio, spectrum surveillance, and electronic warfare. Most of the AMC ...
  • A novel biometric authentication approach using electrocardiogram signals 

    Gürkan, Hakan; Güz, Ümit; Yarman, Bekir Sıddık Binboğa (IEEE, 2013)
    In this work, we present a novel biometric authentication approach based on combination of AC/DCT features, MFCC features, and QRS beat information of the ECG signals. The proposed approach is tested on a subset of 30 ...
  • A novel fast algorithm for speech and audio coding 

    Güz, Ümit; Gürkan, Hakan; Yarman, Bekir Sıddık Binboğa (IEEE, 2007)
    In this work a new mathematical modeling approach is proposed for the representation of the speech and audio signals. This approach is based on the generation of the so called Predefined Signature Sequence (PSS) and ...