Open AccessApplications of a simplified non-Gaussian field model to wave propagation in turbulent media
Author(s) -
Chen Jing-Yuan,
Shigang Chen,
Guangrui Wang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.3132
Subject(s) - intermittency , physics , statistical physics , gaussian , refractive index , turbulence , probability density function , plane wave , computational physics , probability distribution , random field , optics , quantum mechanics , mathematics , mechanics , statistics
In order to study the optical effects of turbulent intermittency,a simplified non-Gaussian random field model has been constructed,which can model atmospheric dielectric permittivity(or refractive-index) fluctuation approximately.Four arbitrary functions enter into the characteristic functional of this model.Using the properties of the atmospheric turbulence,such as the statistical homogeneity,the single-point probability distribution and the spectrum of the refractive-index fluctuations,these functions can be selected or determined.With these given functions,we have studied the statistical properties,especially the mean field adn the mutual coherence function,of a plane partially coherent incident wave.A simple example of numerical simulation has also been presented.