Speckle propagation through atmospheric turbulence: Effects of partial coherence of the target

被引:9
作者
Korotkova, O [1 ]
Andrews, LC [1 ]
机构
[1] Univ Cent Florida, Dept Math, Orlando, FL 32816 USA
来源
LASER RADAR TECHNOLOGY AND APPLICATIONS VII | 2002年 / 4723卷
关键词
D O I
10.1117/12.476417
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Based on ABCD ray matrix theory and a random phase screen model for the target surface, analytic expressions are developed for the normalized mutual coherence function (MCF) of a reflected Gaussian-beam wave from a finite target in the presence of atmospheric turbulence. This analysis features both pupil plane and image plane expressions and includes partial and fully developed speckle from the target. The target model is a combination of a thin random phase screen and limiting aperture stop such that a weak screen corresponds to a mildly-rough target and a strong (or deep) random phase screen corresponds to fully developed speckle. From the normalized MCF, estimates are given for the speckle size in the pupil plane and image plane as a function of transmitted beam wave characteristics, size and roughness of the target, and size of the receiver collecting lens.
引用
收藏
页码:73 / 84
页数:12
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