摘要
目标-背景对比度是基于大气辐射传输理论的空间目标识别的重要参量之一。云覆盖了50%的地球表面,对电磁波和光波的传输有重要的影响,因而其类型、在视线路径上出现的概率均会对目标识别产生重要影响。所以要保证目标识别的精度,必须考虑云的作用。从辐射传输理论出发,采用平面平行云的假定和Lund的无云视线概率模型,对有云天气条件下的目标背景对比度进行了详细的分析。
Target-background contrast is one of the important parameters for identification of target in space. Since cloud covers about 50% the ground surface and has important influence to the radiation transfer, it is necessary to taking into account the influence of cloud in the computing process of the target-background contrast. In the paper, the effect of the optical properties of cloud on the target-background contrast is analyzed based on the plane parallel assumption and the probability of cloud free light of sight (PCFLOS).
出处
《红外与激光工程》
EI
CSCD
北大核心
2005年第3期281-286,291,共7页
Infrared and Laser Engineering
