探索了如何从空间对远紫外日辉辐射进行遥感观测，以便为检测高层大气状态提供新的监测方法。针对风云三号（FY3）气象卫星有效载荷观测结果的数据处理， 研究了利用140~180 nm波段的LBH(LymanBirgeHopfield)日辉辐射与OI 135.6 nm日辉辐射进行O/N2反演的方法。通过研究这两个远紫外日辉观测信号的辐射特性，验证了二者的柱辐射率之比135.6/LBH与太阳活动呈相关关系。检验了太阳活动对O/N2反演曲线的影响，结果表明：太阳活动的变化会造成O/N2反演曲线之间存在比较大的偏差，因此在O/N2的反演技术中必须考虑如何消除太阳活动的影响。本文的工作为FY3载荷仪器的O/N2图像反演技术的研究奠定了基础。

How to obverse the far ultraviolet(FUV) dayglow emission from space in remote sensing was explored to provide a method for monitoring of the upper atmosphere.On the basis of data processing for observation signals of payloads on the meteorological satellite FY3, an O/N2 retrieval method by use of the LymanBirgeHopfield(LBH) band in the range of 140-180 nm and the OI 135.6 nm dayglow emissions was researched.By analysis of the characteristics of 140-180 nm and the OI 135.6 nm dayglow emissions, it proves that the 135.6/LBH is correlated with solar activity.Then, the effects of the solar activity on the O/N2 retrieval curves were investigated, and the results show that there are large deviations between the retrieval curves with different solar activities, so the solar activity effect must be removed in the O/N2 retrieval method.This work provides a solid basis for the development of the O/N2 retrieval method prepared for data processing of instruments on FY3.