风云二号扫描辐射计可见杂光分析与抑制  

Analyzing and Suppressing Visible Stray Light of Scanning Radiometer for FY-2 Meteorological Satellite

作　　者：李欣耀 原育凯[1] 裴云天[1] 陈桂林[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《科学技术与工程》2006年第12期1605-1608,共4页Science Technology and Engineering

摘　　要：对扫描辐射计光机建模,采用光线倒追法找到可见杂光的入侵途径,并工程化实施了次镜罩、折镜光栏的抑制措施。在此基础上设计百叶窗,应用积分球进行比对试验,结果表明百叶窗能够消除残余的一级杂光。进一步分析多级杂光的发生机理,提出次镜人字形光栏的改进建议。The invaded paths of visible stray light of scanning radiometer with backwards ray tracing by modeling are found. The secondary mirror＇s baffle and the folding mirror＇s stop are taken in application. In addition, a shutter is designed, which shows the thoroughness of suppressing the straight hit in the test with the integrating sphere. By further analyzing of the multilevel stray light, a secondary mirror＇s stop is suggested.

关 键 词：扫描辐射计 杂光 光线倒追 抑制 

分 类 号：TP133[自动化与计算机技术—控制理论与控制工程]