CCD摄像技术在大气光学传输特性监测研究上的应用

Application of CCD camera to monitoring and research of the atmospheric optical transmission characteristics

介绍以CCD摄像机为光学图像传感系统 ,通过定量测量景物 (目标 /背景 )亮度的大气传输衰减 ,来测定白天大气的光学传输特性的一种光学图像测量方法。介绍了系统的测量原理、方法、系统基本构成、基本技术指标要求和所采用的技术方案 ,给出该系统与激光雷达进行对比试验的结果。实验结果表明 ,经过一定的对比和标定 ,该系统可直接用来测量、监测白天大气的消光系数或水平气象能见度。

A new optical image sensor-based CCD camera technique and system, which can be used to research the atmospheric transmission characteristics by measuring the attenuation of objects(target/background) luminance, is developed. The basic principle, method and technology scheme are discussed, and then the comparison experiments between the system and a lidar system are carried out. The results show that this system can directly be used in monitoring and measuring daytime atmospheric extinction coefficient or horizontal visibility, as the system is calibrated correctly.