三维激光地面扫描半径与垂直精度分析  

Analysis of 3D Laser Scanning Ground Radius and Vertical Accuracy

作　　者：戴华阳[1] 岳冲[1] 徐翀[2,3] 阎跃观[1] 邹定辉[1] 刘杰[1] 韩云春[2,4] 

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京市学院路丁11号100083 [2]淮南矿业(集团)有限责任公司,淮南市洞山中路1号232000 [3]煤矿生态环境保护国家工程实验室,淮南市洞山中路1号232000 [4]深部煤炭开采与环境保护国家重点实验室,淮南市洞山中路1号232000

出　　处：《大地测量与地球动力学》2015年第2期360-364,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(50974122);高等学校博士学科点专项科研基金(20110023110014);中国矿业大学(北京)大学生创新训练项目(Y20131208;Y20141202)

摘　　要：针对三维激光扫描观测中地面与激光束不垂直带来的相关问题,推导了地面点间距计算方法。通过实地观测,检验计算结果的准确性与可行性,得到扫描仪的最佳扫描半径。将点云模型的高程数据与16个同名点的水准测量结果进行对比,结果表明,模型上同名点高程与水准测量结果相差不大,说明三维激光扫描技术测量精度较高,能够用于变形区高程变形监测。For problem of the laser beam not being perpendicular to the ground,ground point spacing calculation method was deduced.With the field observation,the accuracy and feasibility of the calculation results were tested and the best scanner scanning radius was obtained.The result shows that by comparing the elevation of point clouds model and the 16 homonymy point using level monitoring measurements,the difference of corresponding point elevation and level measurement point is not obvious.It is stated that the 3D laser scanning technology has high accurate and can be used for deformation monitoring of the subsidence zone.

关 键 词：三维激光扫描技术 地表沉陷 扫描半径 垂直精度 

分 类 号：P258[天文地球—测绘科学与技术]