Propagation of electromagnetic waves through a turbulent atmosphere
Propagation of electromagnetic waves through a turbulent atmosphere
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电磁波在湍流大气中的传播
DOI：
10.1088/0034-4885/55/1/002
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发表时间：
1992
影响因子：
18.1
通讯作者：
Y. Kravtsov
中科院分区：
文献类型：
--
作者：
Y. Kravtsov
综述了电磁波在湍流介质中传播研究的主要进展。最大的注意力直接放在强度剧烈波动的问题上。本文的理论成果包括：路径积分技术、优势相关法、双尺度法、大非均匀散射体散射的混合方法、后向散射的相干通道理论、部分确定过程和场的概念。文中描述的新物理效应包括：间歇性湍流中相干半径的增加，后向散射增强，波在湍流介质中的双通道的相位、入射角、群延迟和频移增加一倍，剩余闪烁效应，后向散射中的长相关效应，湍流介质中波前的部分反转，位相共轭反射镜反射的魔帽效应，超高频无线电波在对流层随机波导中的强烈局域化，焦散阴影中的穿透效应，以及增强的透明度。概述了实验研究的新领域，如植被和雪盖的散射，湍流中的相干结构，并引出了新的理论分析对象：波前的随机位错，分形和临界波现象，以及随机场的可预测性。
Reviews the major advances achieved in the studies of EM wave propagation in turbulent media. The greatest attention has been directly to the problem of strong fluctuations of intensity. The theoretical results of this treatise include: the path integration technique, the predominant correlation method, the two-scale method, the hybrid approach to scattering from small inhomogeneities in the presence of large ones, the theory of coherent channels in backscattering, and the concept of partially determinate processes and fields. New physical effects described in the review include the rise of the coherence radius in intermittent turbulence, backscatter enhancement, doubling the variance of phase, incidence angles, group delay, and frequency shifts in the double passage of waves through turbulent media, the residual scintillation effect, the long correlation effect in backscattering, the partial reversal of wavefronts in turbulent media, the magic cap effect in reflection from phase conjugated mirrors, the strong localization of UHF radio waves in stochastic tropospheric waveguides, the effect of penetration in caustic shadows, and enhanced translucence. New fields of experimental research have been outlined, such as scattering from vegetation and snow covers, and coherent structures in turbulence, and new objects of theoretical analysis have been elicited: random dislocations of wavefronts, fractal and critical wave phenomena, and the predictability of random fields.
运动刺激的视觉处理。
DOI：
10.1364/josaa.2.000216
发表时间：
1985
期刊：
Journal of the Optical Society of America. A, Optics and image science
影响因子：
--
作者：
Kelly,DH
通讯作者：
Kelly,DH