可见光波段海面目标物的光谱对比度──Ⅰ．理论基础  

SPECTRAL CONTRAST OF OBJECTS AT THE SEA SURFACE IN VISIBLE REGION RANGE Ⅰ. Theoretical foundation

作　　者：钟其英[1,2] 曹文熙[1,2] 杨跃忠[1,2] 卢挂新 丁永耀[1,2] 李武[1,2] 

机构地区：[1]中国科学院南海海洋研究所 [2]国家海洋局第一海洋研究所

出　　处：《热带海洋》1996年第3期52-60,共9页

基　　金：国家自然科学基金

摘　　要：对海面目标物的目视观察，其能见距离与观测方向、海面背景光谱辐射、目标物固有光谱辐射和大气分子及气溶胶的光学参数等因素有密切关系。本文从理论上分析各种因素的影响，特别是研究了海面背景辐射对目标物光谱对比度的作用。推导出不同观测方向下目标物光谱对比度的计算公式。作为例子，给出海面上黑色物体的光谱对比度公式，也给出海面目标“被隐蔽”的条件。The visible distance for objects at the sea surface when viewed by eyes, is related to many factors such as viewing direction, sea surface background spectral radiance, inherent spectral radiance of the object, optical parameters of the air molecules and aerosol.In this paper the effects of various factors are analysed theoretically, we especially studied the effects of sea surface background radiance on the spectral contrast and derived a set of formulae of computing the spectral contrast of objects in various viewing directions. As an example, we give a formula for spectral contrast of a black object at the sea surface and the conditions under which the object at the sea surface can be hidden.

关 键 词：可见光 海面目标物 光谱对比度 海洋光学 

分 类 号：P733.3[天文地球—物理海洋学]