船载三维激光扫描系统高原湖泊测量精度分析  

Accuracy analysis of ship-borne 3D laser scanning system for lake survey in plateau

作　　者：石光 胥洪川 彭畅 龙洪 冯国正 SHI Guang;XU Hongchuan;PENG Chang;LONG Hong;FENG Guozheng(Bureau of Hydrology and Water Resources Survey of the Upper Yangtze River,Bureau of Hydrology,Changjiang Water Resources Commission,Chongqing 400021,China)

机构地区：[1]长江水利委员会水文局长江上游水文水资源勘测局,重庆400021

出　　处：《水利水电快报》2020年第5期8-14,共7页Express Water Resources & Hydropower Information

摘　　要：高原湖区气候恶劣、交通不便、风力较大,采用传统测量方式或航测方式较为困难。根据高原湖区植被稀疏、地物较少、地势较陡、湖泊航行条件良好的特点,可开展船载三维激光扫描系统湖区陆上地形测量工作。介绍了船载三维激光系统坐标转换原理,分析各传感器及其集成误差,采用误差传播定律进行系统误差估计。经实例数据进行精度评定,证实了船载三维激光扫描系统在高原测量可靠性好、精度高,可为高原测湖陆上地形测量提供新的解决方案。Due to the bad climate,inconvenient traffic and strong wind,it is difficult to use traditional measurement or aerial measurement.In view of the characteristics of sparse vegetation,less surface features,steep terrain and good navigation conditions in the plateau lake area,the land topographic survey of the lake area can be carried out with the ship borne 3D laser scanning system.This paper introduces the principle of coordinate conversion of Ship-borne three-dimensional laser system,analyzes each sensor and its integrated error,and estimates the system error by using the law of error propagation.The accuracy evaluation of the case data proved that the ship-borne 3D laser scanning system has good reliability and high accuracy in the plateau survey,which provides a new solution for the plateau survey of lake land topography.

关 键 词：船载三维激光扫描系统 系统误差 误差传播定律 精度分析 高原湖泊测量 

分 类 号：P343.3[天文地球—水文科学]