基于ICCD的机载海洋荧光激光雷达模拟研究

机载海洋荧光激光雷达是最有效的海洋环境监测手段之一, 世界上许多国家发展了机载海洋荧光激光雷达系统，并成功的应用于业务化测量。根据国际机载荧光激光雷达系统发展趋势，本文对基于512通道ICCD的机载海洋荧光激光雷达系统进行了实验室实验模拟和计算，对其可行性进行了评估。本文采用单脉冲能量70uJ的355nm Nd:YAG激光器作为激发光源，直径100mm，的透镜收集探测距离5米远荧光信号，信号具有较好信噪比。模拟计算表明，对于同样基于ICCD探测的机载海洋激光雷达，采用20Hz、单脉冲能量80mJ的激光器和200mm口径望远镜在150米探测距离可获得与实验室相当的结果。

Simulation for airborne ocean fluorescence lidar based on ICCD

Following the trend in the world, a 512 channels ICCD was used as ocean lidar’s detector. With a 70 μJ single pulse energy, 355 nm laser and the 512 channels ICCD, the performance of airborne ocean lidar was simulated in laboratory. The water sample was put in 5 m and the fluorescence signal was collected with a 100 mm diameter lens. The experimental result shows a good signal noise ratio. Based on the simulation experimental results, it can be included that a real airborne ocean lidar with a 20 Hz, 80 mJ single pulse energy, and 200 mm diameter collection telescope has nearly the same performance with the lab lidar system.