摘要
近年来,电磁波谱中亚毫米波段的开发得到了国内外越来越多的重视。在研究亚毫米波段能量表征和大气辐射理论的基础上,提出一种用于850μm波段天空温度计算的模型。该模型综合考虑了大气中水蒸气、氧气,以及云(雾)、降雨等多种影响天空温度的因素。同时,利用模型仿真和计算了不同气象条件下的天空温度,并对天空温度和湿度或天顶角等影响因素之间的关系进行分析。最后,给出了该波段天空温度的变化规律。
In resent years, the development of sub-millimeter wave （SMMW） in the electromagnetic spectrum gets more and more attentions at home and abroad. Based on the energy characterization and atmosphere radiation theory, the model of sky radiation temperatures in 850 μm wave band is introduced. It includes some influencing factors, which influence the values of sky radiation temperatures, such as vapor, oxygen, cloud, rain and so on. At the same time, the sky radiation temperatures in the different meteorological conditions are calculated and emulated by using the model. And the relations of humidity or zenith angles and sky radiation temperatures are analyzed. Finally, the variation laws of sky radiation temperatures in the wave band are given qualitatively.
出处
《红外技术》
CSCD
北大核心
2010年第1期33-36,40,共5页
Infrared Technology
基金
国防预研基金项目
关键词
亚毫米波
模型
天空温度
湿度
天顶角
sub-millimeter wave
model
sky temperature
humidity
zenith angle
