Abstract
The variance of the irradiance scintillations of a wave that propagates in a random medium is calculated by using the extended Huygens–Fresnel principle (EHFP) and then compared with numerical solutions of the parabolic equation for the fourth-order statistical moment. Results are presented for the propagation of Gaussian beams and plane waves in a two-dimensional random medium with a Gaussian correlation function. Various formulations of the EHFP are considered, with particular emphasis on the often-used phase approximation of the EHFP. It is shown that, although both methods predict saturation, there is a considerable disagreement at moderate ranges.
© 1983 Optical Society of America
Full Article | PDF ArticleMore Like This
R. J. Hill
J. Opt. Soc. Am. A 2(3) 445-453 (1985)
W. P. Brown
J. Opt. Soc. Am. 62(8) 966-971 (1972)
M. Tur
J. Opt. Soc. Am. 72(12) 1683-1691 (1982)