摘要
云天自动化观测是气象业务发展必然的趋势。现有的云自动化观测仪器,价格昂贵,测量精度差,很难满足气象业务发展的要求,基于双目成像原理的可见光成像测云高和红外成像测云高相结合方案能够很好的解决白天和夜间云高的测量,本文分析了系统作用距离,给出了作用距离、目标辐射温差和大气影响因素三者之间的关系,并与现有云高测量设备进行了对比分析,通过试验实现了云底高的测量。
Automated observation for cloud sky is an inevitable trend in the development of meteorological services. The existing cloud automated observing instruments are expensive and with poor measurement accuracy,which is difficult to meet the requirements of meteorological business development. The combination of visible light imaging and high-infrared imaging cloud measurement based on binocular imaging principle can solve the problems of cloud height measurements both in daytime and nighttime. This paper analyzes the operating distance of the system,gives the relationship between the operating distance,target radiation temperature difference and atmospheric influence factors,and makes a comparative analysis with the existing cloud height measurement equipment,and realizes the measurement of cloud base height through experiments.
作者
杨昳
王小力
YANG Yi;WANG Xiao-li(North China Research Institute of Electro-Optics,Beijing 100015,China)
出处
《激光与红外》
CAS
CSCD
北大核心
2019年第2期194-197,共4页
Laser & Infrared
关键词
云底高
辐射亮温
同步因素
作用距离
cloud bottom height
radiometer brightness temperature
synchronization factor
operating range
