Twoscale solutions for intensity fluctuations in strong scattering
Abstract
An exact integrodifferential equation is derived for a certain transform of the fourpoint coherence function by using a twoscale embedding procedure. The solution is expanded in an asymptotic series in the inverse strongscattering parameter, the terms of which are solutions of a hierarchy of simple firstorder partial differential equations. Further approximations simplify the retransformation and display the fourpoint coherence in a useful, numerically convenient form. Results compare favorably with existing numerical computations of the scintillation index and the covariance in twodimensional planewave propagation. Results for threedimensional planewave propagation are also presented.
 Publication:

Journal of the Optical Society of America A
 Pub Date:
 June 1984
 DOI:
 10.1364/JOSAA.1.000585
 Bibcode:
 1984JOSAA...1..585F
 Keywords:

 Atmospheric Optics;
 Coherent Scattering;
 Fluctuation Theory;
 Light Scattering;
 Scattering Functions;
 Scintillation;
 Atmospheric Refraction;
 Atmospheric Turbulence;
 Covariance;
 Inverse Scattering;
 Kolmogoroff Theory;
 Luminous Intensity;
 Plane Waves;
 Physics (General)