文章基本信息

标题：Calculation Method of Earth-Atmosphere Stray Light Illuminance on Low-orbit Space Cameras
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作者：Du, Yujun ; He, Yinghong ; Chen, Haibin 等
期刊名称：Journal of Multimedia
印刷版ISSN：1796-2048
出版年度：2013
卷号：8
期号：6
页码：699-704
DOI：10.4304/jmm.8.6.699-704
语种：English
出版社：Academy Publisher
摘要：The earth-atmosphere stray light can lower contrast ratio and SNR of spatial optical remote sensors, or even fail the system at certain conditions. Errors in the calculation of the stray light illuminance based on point source are very large, for the satellite’s altitude is only several hundred kilometers and far less than the radius of the earth. This paper proposed a stray light illuminance calculating method which viewed the earth as a plane stray source and introduced the method in detail. Using the calculating method, earth-atmosphere stray light illuminance on the camera image plane for a low-orbit space camera at a typical position is calculated, and the results were compared with those calculated by viewing the earth as a point source, which evidently show that, when considering the earth-atmosphere stray light’s effects on low-orbit space cameras, it’s necessary to treat the earth as a plane extended light source
关键词：Earth-Atmosphere Stray Light;Space Camera;Extended Light Source;Point Source Transmission