本文選題：近紅外 + 云層�。� 參考：《激光與紅外》2014年06期

【摘要】：大氣層內(nèi)白天測星最大的困難是過強(qiáng)的天空背景輻射,白天近紅外波段可以探測到足夠多的星體用以導(dǎo)航。目前已有研究針對理想情況下的白天恒星探測進(jìn)行了分析,然而,對于實(shí)際情況來說,天空背景很難像理想分析中那樣無風(fēng)無雨無云,尤其是云層自身的熱輻射及散射的太陽輻射對近紅外白天恒星探測造成極大的影響;根據(jù)經(jīng)驗(yàn)公式,對云層和太陽的紅外輻射進(jìn)行計(jì)算,分析了白天云層對恒星探測的影響,并以層云和積云為例,具體分析了恒星輻射透過云層的衰減,對實(shí)際工作具有一定的指導(dǎo)意義。
[Abstract]:The biggest difficulty in measuring stars in the atmosphere during the day is the strong sky background radiation, and enough stars can be detected in the daytime near infrared band for navigation. At present, studies have been carried out to analyze daytime star detection in ideal conditions. However, it is very difficult for the sky background to be as windy, rainy and cloudless as it is in ideal analysis. In particular, the thermal radiation of the clouds themselves and the scattered solar radiation have a great influence on the detection of stars during the near infrared day. According to the empirical formula, the infrared radiation of the clouds and the sun is calculated, and the influence of the clouds on the detection of stars during the day is analyzed. Taking stratospheric clouds and cumulus clouds as examples, the attenuation of stellar radiation through clouds is analyzed in detail, which has certain guiding significance for practical work.
【作者單位】： 92941部隊(duì);海軍航空工程學(xué)院;92819部隊(duì);
【分類號(hào)】：P141.91

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