AS-900HL多平台激光雷达测量系统在河道地形测量中的应用

数字城市的发展对基础数据提出更高的要求,获取地表三维空间信息的需求日渐增加。AS-900HL多平台激光雷达测量系统是一种集成高精度激光扫描仪与惯性导航的系统,可搭载在多种平台进行数据采集,具有工作效率高、扫描速度快、测点密度大、成果形式多样等特点。以鸭绿江白马浪至云峰大坝段河道地形测量为实例,对AS-900HL在河道地形测量的应用进行探讨。该河段地形高低起伏巨大,不具备直接接触测量的条件,由于对岸是朝鲜,无法登陆架设远程测量设备,也不能采用无人机航飞,属于实施难度很大的特殊河段。通过踏勘、路线设计、外业采集、内业处理和成果输出,验证了该系统在河道地形测量中的可行性。该系统适用于河道地形测量,尤其在特殊困难河段,能填补常规测量技术无法施测的空缺,可推动数字航道和数字城市建设。

Application of AS-900HL multi-platform radar measurement system for waterway topographic survey

The development of digital cities puts forward higher requirements for the basic data,and the demand for obtaining 3D spatial information of the surface is increasing day by day.AS-900HL multi-platform radar measurement system integrates a high-precision laser scanner and inertial navigation,which can be carried out on many platforms for data acquisition.It has the characteristics of high working efficiency,fast scanning,high density of measuring points,and various forms of results.This paper takes the topographic survey of the Baimalang to Yunfeng dam section of the Yalu River as an example to discuss the application of AS-900HL in river topographic survey.The terrain of this waterway section is highly undulating,and there is no direct contact measurement condition.Since the other side of the river is North Korea,there is no possibility of landing and setting up remote measurement equipment,nor is it possible to fly an unmanned aerial vehicle,which is a special river section that is very difficult to implement.Through exploration,route design,field collection,internal processing,and output,the feasibility of the system in waterway topographic survey is verified.This system is suitable for waterway topographic surveys,especially in difficult waterway sections.It can fill the gap that cannot be surveyed by conventional survey technology.To go further,it has a positive effect on the construction of the digital channels and digital cities.