在CCD 星敏感器中, CCD 像面的背景噪声严重地影响了星点提取的准确性, 要降低背景噪声就必须对杂光进行有效地消除, 所以CCD 星敏感器中的遮光罩起着重要的作用。针对这一问题, 对遮光罩的设计作了进一步的分析和研究。Abstract W ith the gradual developm en t of CCD2star sen so r, exact ly ex t ract ing star po in t has been becom ing mo re and mo re impo rtan t. The background no ise of CCD w ill affect the ex2 t ract ing accu racy seriou sly. The baff le designed befo re cou ldn′t sat isfy h igh p recision requ irem en t of CCD2star sen so r now , so a k ind of op t im um design ingm ethod of the baff le is expounded in th is art icle.KeyWords A t t itude sen so r, Background no ise, Baff le.
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