Open AccessScattering from a diffuse target in the slant atmospheric turbulence
Author(s) -
Hongyan Wei,
Zhensen Wu,
Peng Hui
Publication year - 2008
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.57.6666
Subject(s) - physics , turbulence , scattering , covariance , computational physics , atmospheric turbulence , optics , altitude (triangle) , clear air turbulence , amplitude , huygens–fresnel principle , covariance function , meteorology , mathematics , statistics , geometry
Based on the extended Huygens-Fresnel principle and ITU-R atmospheric turbulence model (the altitude-dependent model proposed by International Telecommunication Union-Recommendation in 2001), the treatment includes the effect of the atmospheric turbulence both on the laser beam as it propagates to the target and on the scattered field as it propagates back to the receiver. The covariance function and variance of the scattering intensity are derived considering the fluctuations of the log-amplitude and phase, and the numerical results are presented. The influences of wavelength, receiver altitude and propagation distance on the covariance function and normalized variance of the scattering are discussed.