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Başlık için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

Başlık için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

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  • Transmittance for Dense Wavelength Division Multiplexing system in non-Kolmogorov turbulence 
    Ata, Yalçın; Baykal, Yahya; Gerçekçioğlu, Hamza (2012)
    Transmittance for a Dense Wavelength Division Multiplexing (DWDM) system operating in non-Kolmogorov medium is evaluated. MODTRAN (MODerate resolution atmospheric TRANsmission) is also used to include the absorption and ...
  • Transmittance of partially coherent cosh-Gaussian, cos-Gaussian and annular beams in turbulence 
    Eyyuboğlu, Halil T.; Baykal, Yahya (Elsevier Science BV, 2007-10-01)
    Average relative power transmittance is evaluated, by incorporating atmospheric turbulence, for partially coherent cosh-Gaussian, cos-Gaussian, Gaussian and annular beams. For all the collimated versions of these beams, ...
  • Turbo product codes based on convolutional codes 
    Gazi, Orhan; Yılmaz, Ali Özgür (Electronics Telecommunications Research Inst, 2006-08)
    In this article, we introduce a new class of product codesbased on convolutional codes, called convolutional product codes. The structure of product codes enables parallel decoding, which can significantly increase decoder ...
  • Turbulence distance of radial Gaussian Schell-model array beams 
    Li, X.; Ji, Xiaoling; Eyyuboğlu, Halil T.; Baykal, Yahya (Springer, 2010-02)
    The effect of turbulence on the spreading of radial Gaussian Schell-model (GSM) array beams is studied quantitatively by examining the mean-squared beam width. The analytical expression for the turbulence distance z (T) ...
  • Turbulence effect on transmittance of atmospheric optics telecommunication system using dense wavelength division multiplexing 
    Ata, Yalçın; Baykal, Yahya (Taylor&Francis Ltd, 2011)
    The effect of atmospheric turbulence on atmospheric optics telecommunication links employing dense wavelength division multiplexing (DWDM) systems is examined. For this purpose, transmittance obtained by using the MODTRAN ...
  • Türbülanslı ortamda yayılan super Lorentz-Gauss laser demetleri için ber analizi 
    Gökçe, Muhsin Caner; Sarı, Filiz; Özek, Faruk (Gazi Univ, Fac Engineering Architecture, 2013-12)
    Çalışmada, türbülanslı ortamda yayılan super Lorentz-Gauss laser demetlerinin yatay iletim uzaklıklarındaki BER - SNR değişimi hesaplandı. BER hesaplamalarında kullanılan pırıldama indisleri, genişletilmiş HuygensFresnel ...
  • Twist phase-induced reduction in scintillation of a partially coherent beam in turbulent atmosphere 
    Wang, Fei; Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2012-01-15)
    The scintillation index of a Gaussian Schell-model beam with twist phase (i.e., twisted GSM beam) in weak turbulent atmosphere is formulated with the help of a tensor method. Variations of the scintillation index of a ...
  • Typical Sequences and Data Compression 
    Gazi, Orhan (2018)
    In this chapter, we will first provide information about typical sequences the introduce the data compression subject. In fact, the data compression subject is a direct consequence of the typical sequences. For this reason, ...
  • Understanding digital signal processing 
    Gazi, Orhan (2018)
  • Uniform asymptotic theory for the edge diffraction of cylindrical waves 
    Umul, Yusuf Ziya (INST Engineering Technology, 2017-12-10)
    The uniform asymptotic theory of diffraction is reintroduced in terms of the Fresnel cylinder function for the diffraction problems of cylindrical waves. The transition function of the above theory, which compensates the ...
  • Uniform boundary diffraction wave theory of Rubinowicz 
    Umul, Yusuf Ziya (Optical Soc Amer, 2010-07)
    Rubinowicz introduced a uniform asymptotic evaluation of the boundary diffraction wave at the transition region [Ann. Phys. (Leipzig) 378, 339 (1924)]. The uniform theory of Rubinowicz is generalized for the improved ...
  • Uniform line integral representation of edge-diffracted fields 
    Umul, Yusuf Ziya (Optical Soc Amer, 2008-01)
    A uniform line integral representation is derived for edge-diffracted fields by using the modified theory of physical optics and uniform asymptotic evaluation methods. The method is applied to the problem of diffraction ...
  • Uniform theory for the diffraction of evanescent plane waves: publisher's note 
    Umul, Yusuf Ziya (Optical Soc Amer, 2007-09)
    A uniform diffracted field is obtained in terms of Fresnel functions with complex argument by subtracting the unit step function from the Fresnel integral. The method is applied to the problem of diffraction of inhomogeneous ...
  • Uniform theory of the boundary diffraction wave 
    Umul, Yusuf Ziya (Elsevier, 2009-04)
    A uniform version of the potential function of the Maggi–Rubinowicz boundary diffraction wave theory is obtained by using the large argument expansion of the Fresnel integral. The derived function is obtained for the problem ...
  • Uniform version of the modified theory of physical optics based boundary diffraction wave theory 
    Umul, Yusuf Ziya (Taylor&Francis Inc, 2008)
    The potential function of the modified theory of physical optics based boundary diffraction wave theory is made uniform by using the principles of the uniform theory of diffraction. The line integration of this new function ...
  • Use of matrix pade approximation in the analysis of ırregularly shaped patch antennas with multiport network model 
    Şener, Göker; Alatan, Lale; Kuzuoğlu, Mustafa (IEEE, 2009)
    A new procedure for implementing the multiport network model for analyzing two-dimensional microwave circuits is proposed. The proposal procedure leads to more efficient evaluation of impedance matrices than the procedure ...
  • Video fire detection - Review 
    Çetin, A. Enis; Dimitropoulos, Kosmas; Gouverneur, Benedict; Grammalidis, Nikos; Günay, Osman; Habiboğlu, Y. Hakan; Töreyin, Behçet Uğur; Verstockt, Steven (Academic Press Inc Elsevier Science, 2013-12)
    This is a review article describing the recent developments in Video based Fire Detection (VFD). Video surveillance cameras and computer vision methods are widely used in many security applications. It is also possible to ...
  • Voronoi Boundary Visibility for Efficient Path Planning 
    Al-Dahhan, Mohammed Rabeea Hashim; Schmidt, Klaus Werner (2020)
    The subject of this paper is the computation of paths for mobile robots that navigate from a start position to a goal position in environments with static obstacles. Specifically, we focus on paths that are represented by ...
  • Wave diffraction by a conductive half-plane between two different media 
    Umul, Yusuf Ziya (Elsevier GMBH, 2019)
    The scattering of waves by a conductive half-screen, which reflects some portion of the incident energy and transmits the remaining part, between two media with different electromagnetic properties is investigated. First ...
  • Wave diffraction by a half-plane for grazing incidence 
    Umul, Yusuf Ziya (Elsevier GMBH, 2018-03)
    The diffracted wave, related with a half-plane on which the total field satisfies the Dirichlet boundary condition, becomes zero when the angle of incidence of the incident wave is equal to zero according to the solution ...