DSpace@Çankaya

Konu "Intensity" için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

Konu "Intensity" için Elektronik ve Haberleşme Mühendisliği Bölümü listeleme

Sırala: Sıra: Sonuçlar:

  • 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 ...
  • Complex degree of coherence for partially coherent general beams in atmospheric turbulence 
    Eyyuboğlu, Halil T.; Baykal, Yahya; Cai, Yangjian (Optical Soc Amer, 2007-09)
    With the use of the general beam formulation, the modulus of the complex degree of coherence for partially coherent cosh-Gaussian, cos-Gaussian, Gaussian, annular and higher-order Gaussian optical beams is evaluated in ...
  • M-ary pulse position modulation performance in non-Kolmogorov turbulent atmosphere 
    Ata, Yalçın; Baykal, Yahya; Gökçe, Muhsin Caner (Optical Soc Amer, 2018-08-20)
    The performance of atmospheric optical wireless communication systems in terms of the bit error rate (BER) is investigated when a Gaussian laser beam propagating in non-Kolmogorov turbulence is M-ary pulse-position-modulated ...
  • Off-axis Field Correlations in Turbulence 
    Baykal, Yahya (IEEE, 2013)
    The field correlations in atmospheric turbulence are evaluated for off-axis optical incidence. Within the practical range of the source and the medium parameters, increase in the diagonal length at the receiver plane is ...
  • Off-axis Gaussian Schell-model beam and partially coherent laser array beam in a turbulent atmosphere 
    Cai, Yangjian; Lin, Qiang; Baykal, Yahya; Eyyuboğlu, Halil T. (Elsevier, 2007-10-01)
    The propagation of an off-axis Gaussian Schell-model (GSM) beam in a turbulent atmosphere is investigated based on the extended Huygens-Fresnel integral formula. Analytical formulae for the cross-spectral density and ...
  • Propagation properties of anomalous hollow beams in a turbulent atmosphere 
    Cai, Yangjian; Eyyuboğlu, Halil T.; Baykal, Yahya (Elsevier Science, 2008-11-01)
    Propagation of circular and elliptical anomalous hollow beams in a turbulent atmosphere is investigated in detail. Based on the extended Huygens-Fresnel integral, analytical formulae for the average irradiance of circular ...
  • Scintillation analysis of multiple-input single-output underwater optical links 
    Gökçe, Muhsin Caner; Baykal, Yahya (Optical Soc Amer, 2016-08-01)
    Multiple-input single-output (MISO) techniques are employed in underwater wireless optical communication (UWOC) links to mitigate the degrading effects of oceanic turbulence. In this paper, we consider a MISO UWOC system ...
  • Scintillation index of elliptical Gaussian beam in turbulent atmosphere 
    Cai, Yangjian; Chen, Yuntian; Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2007-08-15)
    A tensor method is used to formulate the on-axis scintillation index for an elliptical Gaussian beam (EGB; astigmatic Gaussian beam) propagating in a weak turbulent atmosphere. Variations of the on-axis scintillation of ...
  • Scintillations of laser array beams 
    Eyyuboğlu, Halil T.; Baykal, Yahya; Cai, Yangjian (Springer, 2008-05)
    The scintillation index of a laser array beam is analytically derived and numerically evaluated for weak turbulence conditions. On-axis as well as off-axis positions of the receiver plane are considered. Our graphical ...
  • Scintillations of partially coherent Laguerre Gaussian beams 
    Yüceer, Mehmet; Eyyuboğlu, Halil T.; Lukin, I. P. (Springer, 2010-12)
    Scintillations of Laguerre-Gaussian (LG) beams for weak atmospheric turbulence conditions are derived for on-axis receiver positions by using Huygens-Fresnel (HF) method in semi-analytic fashion. Numerical evaluations ...