摘要
以太阳为光源的卫星遥感器,可以采用6S或MODTRAN等辐射传输计算软件对其入瞳处的辐亮度进行计算。而在微光或月光条件下,遥感器是对观测目标反射的月亮辐射进行遥感观测,因此在进行辐射传输计算时需要代入月球的辐照度数据。可以利用已公布的月球表面反射率和已知的大气层外太阳辐照度来计算月球辐照度,并对6S辐射传输计算进行适当的修改进行计算。通过对月球辐照度计算原理进行了详细的描述并计算得到了波长在0.250μm^1.500μm范围内的月球表面辐照度,并给出了一个宽波段遥感器的微光动态范围。
The radiative transfer softwares such as MODTRAN or 6S can be directly used to compute remote sensing radiances of the sensors which illuminated by the sun. But lunar irradiance must be integrated in the computation for the glimmer sensors which detect the lunar radiation reflected by the objects. The lunar surface albedo and extraterrestrial solar irradiance already been known and published were used to calculate the lunar irradiance. Till now only 6S can easily include the lunar irradianee in radiative transfer computation. By description of how to compute lunar irradiance in detail then obtained extraterrestrial moon surface irradiance in the range of O. 250um-1. 500um.
出处
《中国空间科学技术》
EI
CSCD
北大核心
2007年第1期27-32,共6页
Chinese Space Science and Technology
基金
国家自然科学基金资助项目(40606042)
遥感科学国家重点实验室开放基金资助项目
关键词
遥感器
信号分析
月球表面反射率
辐照度
卫星
Remote sensor Signal analysis Lunar surface albedo Irradiance Satellite
