DSpace@Çankaya

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

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

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  • Average intensity and spreading of an elegant Hermite-Gaussian beam in turbulent atmosphere 
    Yuan, Yangsheng; Cai, Yangjian; Qu, Jun; Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2009-06-22)
    The propagation of an elegant Hermite-Gaussian beam (EHGB) in turbulent atmosphere is investigated. Analytical propagation formulae for the average intensity and effective beam size of an EHGB in turbulent atmosphere are ...
  • Calculation of average intensity via semi-analytic method 
    Eyyuboğlu, Halil T.; Sermutlu, Emre (Springer, 2010-03)
    We present a semi-analytic approach to the solution of the quadruple Huygens-Fresnel integral which is used to calculate the average receiver intensity of a source beam after it has propagated in a turbulent atmosphere. ...
  • 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 ...
  • Performance of M-ary pulse position modulation for aeronautical uplink communications in an atmospheric turbulent medium 
    Ata, Yalçın; Baykal, Yahya; Gökçe, Muhsin Caner (Optical Soc Amer, 2019-10-01)
    This paper discusses the bit-error-rate (BER) performance of an aeronautical uplink optical wireless communication system (OWCS) when a Gaussian beam is employed and the M-ary pulse position modulation technique is used ...
  • Scintillation index of flat-topped Gaussian beams 
    Baykal, Yahya; Eyyuboğlu, Halil T. (Optical Soc Amer, 2006-01-01)
    The scintillation index is formulated for a flat-topped Gaussian beam source in atmospheric turbulence. The variations of the on-axis scintillations at the receiver plane are evaluated versus the link length, the size of ...
  • Scintillations of incoherent flat-topped Gaussian source field in turbulence 
    Baykal, Yahya; Eyyuboğlu, Halil T. (Optical Soc Amer, 2007-08-01)
    The intensity fluctuations of incoherent flat-topped Gaussian beams are evaluated when such sources are used in weakly turbulent horizontal atmospheric links. The formulation is developed for a detector having a response ...