sky background brightness的意思|示意

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.

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；

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.

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。