雾天环境下激光测距机大气传输仿真与最大测程分析  

Atmospheric Transmission Simulation and Maximum Range Analysis of Laser Rangefinder in Foggy Environment

作　　者：方坤 杨坚 李松(指导)[1] FANG Kun;YANG Jian;LI Song(Electronic Information School,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉大学电子信息学院,湖北武汉430072

出　　处：《光学与光电技术》2022年第3期70-76,共7页Optics & Optoelectronic Technology

摘　　要：针对不同大气环境条件下激光测距机最大测程显著变化的问题,建立了表观光学参数大气能见度V与大气吸收系数、散射系数和总衰减系数之间的关系,采用蒙特卡罗方法仿真了激光大气传输过程,以美国Voxtel公司的远程激光测距机为例,定量计算了雾天环境下能见度变化对最大测程的影响。结果显示:标称最大测程为10 km的激光测距机在能见度为20 m、300 m和1500 m的气象条件下,最大测程分别为30 m、335 m和1240 m;测距机最大测程随气象条件的改变会发生明显的变化。该仿真方法可评估大气光学参数对激光测距机测程的影响,以及指导系统设计阶段的参数优化。Aiming at the problem that the maximum range of the laser rangefinder changes significantly under different atmospheric conditions,the relationship between the apparent optical parameter atmospheric visibility V and the atmospheric absorption coefficient,scattering coefficient and total attenuation coefficient are established,and the Monte Carlo method is used to simulate the laser atmospheric transmission process.The long-range laser rangefinder of Voxtel Corporation of the United States is taken as an example to quantitatively calculate the influence of visibility on the maximum range in foggy environment.The results show that the laser rangefinder with a nominal maximum range of 10 km has a maximum range of 30 m,335 m and 1240 m under the environmental conditions of 20 m,300 m and 1500 mm of visibility,respectively.And the maximum range of rangefinder will change obviously along with the change of meteorological conditions.This simulation method evaluates the influence of atmospheric optical parameters on the laser rangefinder range and guides parameter optimization in the system design process.

关 键 词：激光测距机 最大测程 大气能见度 蒙特卡罗仿真 大气传输 

分 类 号：TN249[电子电信—物理电子学]