论文部分内容阅读
激光雷达在云观测中起着非常重要的作用,是云遥感探测的主要仪器之一。目前,激光雷达大都是固定指向天顶角或者某个角度,对云分布的取样有限。本文建立用于云观测的扫描激光雷达,该系统使用小型固态激光器背负于接收望远镜上,望远镜固定于三维扫描平台,整个系统可以工作于不同的扫描模式以实现全天空云的监测。通过利用该扫描激光雷达对云的分布进行测量,并与已有激光雷达观测数据的对比,结果表明,与传统激光雷达相比扫描激光雷达能够精细的描述出云高和云光学厚度的空间分布,体现了扫描测量激光雷达在云探测方面的优势。
Lidar plays a very important role in cloud observation and is one of the main instruments for cloud remote sensing. At present, most of the laser radar is fixed point to the zenith angle or a certain angle, the limited sampling of cloud distribution. In this paper, a scanning lidar for cloud observation is built. The system uses a small solid-state laser to carry the receiving telescope. The telescope is fixed on the three-dimensional scanning platform. The whole system can work in different scanning modes for monitoring the whole sky and cloud. By using this scanning lidar to measure the cloud distribution and comparing with the existing lidar observation data, the results show that the scanning lidar can describe the spatial distribution of cloud height and cloud optical thickness in detail compared with the traditional lidar , Reflecting the advantages of scanning laser lidar in cloud detection.