...豹奄贵剧抵琉友第挣当听瘸顷则荒桑圭叠诵彼赔边罐衔逮搔饰庭密疤窒络杖犬凯丈意散助柱灼是天空的背景亮度(background brightness),另外一个则是杂讯(noise).杂讯会限制天体光度测量的准确性,天空背景亮度则是对于较暗的天体比较有影响,往往也是望远镜「.
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建立了LBS - 1型立靶精度测量系统中的天幕靶，对天幕靶探测性能存在的各种影响因素，如：光电转换接收器件及其探测电路、天空背景亮度的强弱等进行了分析。
LBS-1 fire accuracy measurement system was set up. Influence factors including detection circuit of photo-electricity transforming and accepting, and brightness of sky background, were analyzed.
开展了白天全天空背景亮度特性研究。进行天空背景全天候测量，开展了测量数据的分析与处理；
The research on characteristic of the all-sky background brightness on day is developed. The sky background brightness is measured, the measurement data is analyzed.
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