ACCURATE NUMERICAL-SOLUTIONS FOR THE FREQUENCY CROSS-CORRELATION OF INTENSITY FLUCTUATIONS IN A RANDOM MEDIUM

Authors
LEONARD SR USCINSKI BJ
Citation
Sr. Leonard et Bj. Uscinski, ACCURATE NUMERICAL-SOLUTIONS FOR THE FREQUENCY CROSS-CORRELATION OF INTENSITY FLUCTUATIONS IN A RANDOM MEDIUM, Applied optics, 32(15), 1993, pp. 2656-2663
Citations number
16
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
32
Issue
15
Year of publication
1993
Pages
2656 - 2663
Database
ISI
SICI code
0003-6935(1993)32:15<2656:ANFTFC>2.0.ZU;2-8
Abstract
The fourth-moment equation for the cross-frequency correlation of inte nsity fluctuations of a plane wave propagating in a random medium is s olved numerically by using an adaptive grid method. A wide range of fr equency ratios r and scattering strength parameters GAMMA are consider ed, and approximate laws for the height and position of the peak of th e covariance of intensities are obtained as functions of r and GAMMA. Difficulties arising in the analytical solution of the fourth-moment e quation are discussed.