IK distribution as a universal propagation model of laser beams in atmospheric turbulence
Abstract
A new propagation model is developed for the intensity fluctuations of a laser beam propagating through extended clearair turbulence. The field of the optical wave is modeled as the sum of a coherent (deterministic) component and a random component, the intensity of which is assumed governed by the generalized n distribution of Nakagami. It is further assumed that the statistics are inherently nonstationary by treating the average intensity of the random portion of the field as a fluctuating quantity. The resulting unconditional IK distribution for the intensity fluctuations is a generalized form of the K distribution that is applicable to all conditions of atmospheric turbulence for which data have been obtained, including weak turbulence for which the K distribution is not theoretically applicable.
 Publication:

Journal of the Optical Society of America A
 Pub Date:
 February 1985
 DOI:
 10.1364/JOSAA.2.000160
 Bibcode:
 1985JOSAA...2..160A
 Keywords:

 Clear Air Turbulence;
 Coherent Light;
 Laser Beams;
 Probability Density Functions;
 Thermal Blooming;
 Turbulence Effects;
 Atmospheric Optics;
 Bessel Functions;
 Fluctuation Theory;
 Light Scattering;
 Light Transmission;
 Mathematical Models;
 Statistical Analysis;
 Lasers and Masers;
 ATMOSPHERIC OPTICS;
 TURBULENCE;
 SCINTILLATION