地面三维激光扫描仪测量精度的评价分析

Evaluation and analysis of measurement accuracy of terrestrial 3D laser scanner

针对地面三维激光扫描仪用于城市轨道交通变形监测的精度评价,本文研究了三维激光扫描仪本身、外界环境和被扫描目标3个误差源,对三维激光扫描仪的测距和测角精度进行了评定,并通过试验分析了三维激光扫描技术用于轨道交通变形监测可行性。

In view of the accuracy evaluation of the ground 3D laser scanner used in the deformation monitoring of urban rail transit,this paper mainly describes the three error sources of 3D laser scanner:itself,external environment and scanned targets.We analyzes the error of ranging and angle measurement of 3D laser scanner and verifies the feasibility of 3D laser scanning technology used in rail transit deformation monitoring through experiments.