DSpace@Çankaya

Konu "Waves" için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

Konu "Waves" için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

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  • Aperture averaging in multiple-input single-output free-space optical systems 
    Gökçe, Muhsin Caner; Baykal, Yahya; Uysal, Murat (Optical Soc Amer, 2016-06-01)
    Multiple-input single-output (MISO) techniques are employed in free-space optical (FSO) links to mitigate the degrading effects of atmospheric turbulence. In this paper, for the MISO FSO system, a partially coherent radial ...
  • Beam Wander of J (0)- and I (0)-Bessel Gaussian Beams Propagating In Turbulent Atmosphere 
    Çil, Celal Zaim; Eyyuboğlu, Halil T.; Bykal, Yahya; Korotkova, Olga; Cai, Yangjian (Springer, 2010-01)
    Root mean square (rms) beam wander of J (0)-Bessel Gaussian and I (0)-Bessel Gaussian beams, normalized by the rms beam wander of the fundamental Gaussian beam, is evaluated in atmospheric turbulence. Our formulation is ...
  • Beam wander of J (0)- and I (0)-Bessel Gaussian beams propagating in turbulent atmosphere 
    Çil, Celal Zaim; Eyyuboğlu, Halil T.; Baykal, Yahya; Korotkova, Olga; Cai, Yangjian (Springer, 2010-01)
    Root mean square (rms) beam wander of J (0)-Bessel Gaussian and I (0)-Bessel Gaussian beams, normalized by the rms beam wander of the fundamental Gaussian beam, is evaluated in atmospheric turbulence. Our formulation is ...
  • Comments on "on the modified theory of physical optics" 
    Umul, Yusuf Ziya (IEEE-INST Electrical Electronics Engineers INC, 2014-09)
  • Effect of the shadow geometry in wedge diffraction 
    Umul, Yusuf Ziya (Optical Soc Amer, 2009-09-01)
    The surface integrals of the modified theory of physical optics are divided into two parts for diffraction by a wedge. Each integral represents the incident or reflected field scattered by one of the faces of the wedge. ...
  • Effect of the shadow geometry on diffraction 
    Umul, Yusuf Ziya (Optical Soc Amer, 2008-12)
    The effect of the scatterer surface on the shadow region is examined by using the surface integrals of the modified theory of physical optics. It is shown that the shadow geometry has a considerable effect on the structure ...
  • Improved equivalent source theory 
    Umul, Yusuf Ziya (Optical Society of America, 2009-08)
    The equivalent source theorem, which is an important technique in the study of radiation and scattering by apertures, is improved by using the two axioms of the modified theory of physical optics. The method is applied to ...
  • Modeling of an interface between isorefractive media by a resistive surface 
    Başdemir, Hüsnü Deniz (Optical Soc Amer, 2018-02-20)
    In this study, the scattering of plane waves by a half-plane with different face impedances, which lie between isorefractive media, is analyzed. A new approach for the solution of this scenario is proposed. According to ...
  • Scattering of a line source by a cylindrical parabolic impedance surface 
    Umul, Yusuf Ziya (Optical Soc Amer, 2008-07)
    The scattering of the radiated fields of a line source by a cylindrical parabolic reflector, which has impedance boundary conditions on its surface, is obtained by using the surface integrals of the modified theory of ...
  • Scintillation behavior of Laguerre Gaussian beams in strong turbulence 
    Eyyuboğlu, Halil T.; Baykal, Yahya; Falits, A. (Springer, 2011-09)
    In strong atmospheric turbulence, the asymptotic on-axis scintillation behaviors of Laguerre Gaussian (LG) beams are examined. To arrive at the strong-turbulence solution, we utilize the existing filtering approach for ...