摘要
本文从物体的反射特性与热辐射特性出发,在考虑大气影响后,推导出遥感中轨道传感器接受到地物的辐亮度的表达式,并对发射光谱(热红外、微波波段)的情况进行了讨论。
After considering the effect of atmosphere, this paper derives an expression of radi-ance equation for any bady surface on earth received by a remote sensor, then discussesthe relation between the radiance and the emission spectrum (thermal infrared and mic-rowave regions). The results indicate that if neglecting the effect of atmosphere, as body'stemprature T is with 300K or so, the radiance received by a remote sensor is propor-tional to T^5 roughly for thermal infrared band (8～14μm), and the radiance isproportional to T for microwave band.
出处
《武汉测绘科技大学学报》
CSCD
1989年第4期79-85,共7页
Geomatics and Information Science of Wuhan University
关键词
地物
辐亮度方程
反射
热辐射
reflectance
thermal radiation
body surface on earth
radiance equation
