Unpolarized emissivity with shadow and multiple reflections from random rough surfaces with the geometric optics approximation: application to Gaussian sea surfaces in the infrared band

被引：13

作者：

Bourlier, Christophe ^{[1
]}

机构：

[1] Univ Nantes, Ecole Polytech, Radar Team, Inst Rech Electrotech & Elect Nantes Atlantique, F-44306 Nantes 9, France

来源：

APPLIED OPTICS | 2006年 / 45卷 / 24期

关键词：

D O I：

10.1364/AO.45.006241

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The emissivity from a stationary random rough surface is derived by taking into account the multiple reflections and the shadowing effect. The model is applied to the ocean surface. The geometric optics approximation is assumed to be valid, which means that the rough surface is modeled as a collection of facets reflecting locally the light in the specular direction. In particular, the emissivity with zero, single, and double reflections are analytically calculated, and each contribution is studied numerically by considering a 1D sea surface observed in the near infrared band. The model is also compared with results computed from a Monte Carlo ray-tracing method. (C) 2006 Optical Society of America.

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收藏

页码：6241 / 6254

页数：14

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