摘要
精密数字地面模型(DTM)是进行公路三维测设的基础。吉林省东部山区地形复杂,植被茂盛,传统全野外测量获取DTM难度大、周期长、精度低。从2011年起,我院开始利用机载Li DAR技术获取DTM数据产品,成功应用于7条高等级公路的勘测设计中,证明了在四季分明的广大北方地区机载Li DAR在公路三维测设中具有较好的实用性和应用前景。
Precision Digital Elevation Model （DTM） is the foundation of highway 3D surveying and designing. However it achieved with long production cycle and low accuracy in outdoors way, because of terrain complexity and lush vegetation in the east of Jilin Province. From 2011, The Institute for Transport Planning and Designing of Jilin Province measure DTM by Airborne LIDAR with advantages of high accuracy, high automation, and high penetrating power. We have accumulated much experience in Airborne LIDAR measurement by applying this technology to seven highway surveying and designing successfully. Also proved it can be used in four distinctive seasonal north area with high applicability and good application prospect.
出处
《测绘与空间地理信息》
2016年第1期73-75,共3页
Geomatics & Spatial Information Technology
