IRRADIANCE PROBABILITY DISTRIBUTION IN SATURATION REGIME OF OPTICAL WAVES PROPAGATING IN TURBULENCE

Authors
  1. Bissonnette, L.R.
  2. Wizinowich, P.L.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Application of the central limit theorem to the equations of propagation suggests that the probability distribution of the complex wave amplitude defined on the geometrical phase front is approximately normal. The resulting irradiance density function, valid in the strong scintillation regime, is an exponential multiplied by the modified Bessel function I sub o whose argument is proportional to the irradiance; it is not the Rice-Nakagami distribution. Quantitative tests show that this exponential-Bessel function constitutes a better fit to the probability data than the log-normal function. Since the normal distribution hypothesis is consistent with the propagation equations, the model proposed here should be a simple substitute to the often used but theoretically incorrect log-normal irradiance probability distribution model.
Report Number
DREV-4114/78 —
Date of publication
15 Aug 1978
Number of Pages
41
DSTKIM No
78-02735
CANDIS No
83420
Format(s):
Hardcopy;Originator's fiche received by DSIS

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