摘要
常规的水下地形测量需要分别测定测点的平面坐标、水深以及水位高程获得水下地形的绝对高程,过程较为繁琐。为及时高效地获取水下地形的三维坐标成果,本文依托方正县双凤水库项目数据提出基于HLJCORS系统的单波束测深系统在水下地形测量工序。该工序是通过在数据采集软件端将GNSS设备采集到的三维坐标和测深仪测得的深度进行叠加,获得瞬时水下地形点的三维坐标,减少了潮汐观测程序。该方法的提出有助于CORS系统在水上项目的应用推广,同时为类似水下地形测量项目提供了参考。
Conventional underwater topographic survey needs to measure the planimetric coordinates,water depth and water level elevation of the measuring points to obtain the absolute elevation of underwater topography,which is complicated.In order to obtain the 3D coordinate results of underwater topography in a timely and efficient manner,this paper proposes a single beam sounding system based on HLJCORS for underwater topography survey of Shuangfeng Reservoir in Fangzheng county.This procedure is to obtain the three-dimensional coordinates of instantaneous underwater topographic points by superimposing the three-dimensional coordinates collected by GNSS equipment and the depth measured by the sounding system in the data acquisition software,which reduces the tide observation program.The proposed method is helpful to the application and promotion of CORS system in water projects,and also provides reference for similar underwater topographic survey projects.
作者
马传宁
王明亮
关辅兴
王晓波
林晓晨
司朝瑞
MA Chuanning;WANG Mingliang;GUAN Fuxing;WANG Xiaobo;LIN Xiaochen;SI Chaorui(The Second Geodetic Surveying Brigade of the Ministry of Natural Resources,Harbin 150025,China)
出处
《测绘与空间地理信息》
2024年第S01期9-11,14,共4页
Geomatics & Spatial Information Technology
基金
黑龙江测绘地理信息局基础测绘科技项目(20220201、20220202、20220204)资助。
关键词
HLJCORS
单波束测深系统
水下地形测量
三维坐标
HLJCORS
single beam Sounding system
underwater topographic survey
three-dimensional coordinates
