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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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  • Fall detection using single-tree complex wavelet transform 
    Yazar, Ahmet; Keskin, Furkan; Töreyin, Behçet Uğur; Çetin, A. Enis (Elsevier Science Bv, 2013-11-01)
    The goal of Ambient Assisted Living (AAL) research is to improve the quality of life of the elderly and handicapped people and help them maintain an independent lifestyle with the use of sensors, signal processing and ...
  • Fast Calculation of Polar Code Bits and Frozen-Bit Locations 
    Genç, Fatih; Gazi, Orhan (2021)
    In this paper, we show that encoding operation for the polar codes can be achieved without the employment of the generator matrix, and all the polar code bits can be generated at the same time using a number of tree-encoding ...
  • Fast decodable turbo codes 
    Gazi, Orhan; Yılmaz, Ali Özgür (IEEE-Inst Electrical Electronics Engineers Inc, 2007-02)
    Decoding delay is an important consideration for the use of turbo codes in practical applications. We propose a new structure for turbo codes which is very suitable for parallel decoding. It is shown by union bound analysis ...
  • Fast decoding of polar codes using tree structure 
    Andi, Alia A.; Gazi, Orhan (Inst Engineering Technology-IET, 2019-08-27)
    In this study, the authors first propose a tree structure for the successive cancelation (SC) decoding of polar codes. The proposed structure is easy to implement in hardware and suitable for parallel processing operations. ...
  • Fictitious diffracted waves in the diffraction theory of Kirchhoff 
    Umul, Yusuf Ziya (Optical Soc Amer, 2010-01)
    The diffraction theory of Kirchhoff is applied to the semi-infinite aperture of a black half-screen. The derivative of the spherical Green's function is taken into account without any approximation. The uniformly evaluated ...
  • Field correlation of spherical wave in underwater turbulent medium 
    Ata, Yalçın; Baykal, Yahya (Optical Soc Amer, 2014-11-20)
    The absolute field correlation of the spherical wave in an underwater turbulent medium is investigated at the receiver plane by using the extended Huygens-Fresnel principle. Results denote that increase in the propagation ...
  • Field correlations for off-axis Gaussian laser beams in atmospheric turbulence 
    Baykal, Yahya (Amer Geophysical Union, 2014-10)
    The absolute field correlations in atmospheric turbulence are evaluated for the off-axis optical Gaussian beam incidence. Evaluations in the practical range of the source and the turbulent medium parameters show that an ...
  • Field correlations of annular beams in extremely strong turbulence 
    Baykal, Yahya; Cai, Yangjian; Ji, Xiaoling (Elsevier Science Bv, 2012-10-01)
    The field correlations of annular beams are formulated when the atmosphere assumes extremely strong turbulence. Thicker and larger ring sized annular beams are found to exhibit larger absolute field correlations. For the ...
  • Field correlations of flat-topped Gaussian and annular beams in turbulence 
    Baykal, Yahya (Elsevier Science Ltd, 2011-05)
    Starting from the second order moment formulation for multi-beam incidence, field correlations at the receiver plane of flat-topped Gaussian and annular beams are found in turbulence. Reflecting the information on both the ...
  • Field correlations of laser arrays in atmospheric turbulence 
    Baykal, Yahya (Optical Soc Amer, 2014-03-01)
    Correlations of the fields at the receiver plane are evaluated after a symmetrical radial laser array beam incident field propagates in a turbulent atmosphere. The laser array configuration is composed of a number of the ...
  • Flat topped beams and their characteristics in turbulent media 
    Eyyuboğlu, Halil T.; Arpalı, Çağlar; Baykal, Yahya (Optical Society of America, 2006-05)
    The source and receiver plane characteristics of flat topped (FT) beam propagating in turbulent atmosphere are investigated. To this end, source size, beam power and M(2) factor of source plane FT beam are derived. For a ...
  • Fluorescent on-chip imager by using a tunable absorption filter 
    Arpalı, Çağlar; Yıldırım, Ender; Altay Arpalı, Serap (IEEE, 2017)
  • Formulation of correlations for general-type beams in atmospheric turbulence 
    Baykal, Yahya (Optical Soc Amer, 2006-04)
    Log-amplitude and phase correlations of general-type beams are formulated in atmospheric turbulence. A general beam is described as the superposition of many sets of multimode contents, each mode being off-axis Hermite-Gaussian. ...
  • Formulation of scintillations for optical incidence of arbitrary field profile 
    Baykal, Yahya; Eyyuboğlu, Halil T.; Cai, Yangjian (Electromagnetics Acad, 2008)
    Scintillation index on the receiver axis is formulated in random medium when an optical source with an arbitrary field profile is employed. To represent the arbitrary source field profile, source is decomposed into pixels ...
  • Forward Error Correction via Channel Coding 
    Gazi, Orhan (Springer, 2019)
    This book provides a comprehensive explanation of forward error correction, which is a vital part of communication systems. The book is written in such a way to make the subject easy and understandable for the reader. The ...
  • Fringe waves in an impedance half-plane 
    Başdemir, Hüsnü Deniz (E M W Publishing, 2013)
    The uniform expressions of scalar fringe waves which are based on the physical theory of diffraction (PTD) were obtained for the impedance half plane in terms of the Fresnel integrals. Asymptotic and uniform forms of the ...
  • Fringe waves in wedge diffraction 
    Umul, Yusuf Ziya (Elsevier GMBH, 2012)
    Explicit expressions for the non-uniform currents of the physical theory of diffraction are derived in terms of Fresnel functions for wedge diffraction by taking into account the surface integrals of the modified theory ...
  • Fringe waves on an impedance cylinder 
    Başdemir, Hüsnü Deniz (Elsevier GMBH, 2013)
    Surface diffraction of the plane waves from an impedance cylinder was investigated by the method of physical theory of diffraction (PTD). Physical optics (PO) method was used to gain the uniform scattered fields which are ...
  • Fringe waves radiated by a half-plane for the boundary conditions of Neumann 
    Umul, Yusuf Ziya (Springer, 2008-12)
    The fringe waves of the physical theory of diffraction are obtained in terms of Fresnel integrals for a half-plane satisfying the Neumann boundary condition. The approximate expressions of the radiated waves are also ...
  • General expression of the diffracted waves by a half-screen with generalized impedance boundary conditions 
    Umul, Yusuf Ziya (Elsevier GMBH, Urban & Fischer Verlag, 2019)
    The diffraction process of plane waves by a half-screen with generalized impedance boundary conditions is studied. Firstly, the scattered geometrical optics waves are obtained by subtracting the incident field from the ...