无验潮水深测量测深精度分析及检验  

Analysis and Inspection on Depth Measuring Accuracy of Non-tidal Observation Bathymetric Survey

作　　者：欧乐 吴年丰 张建 OU Le;WU Nianfeng;ZHANG Jian(Naval South China Sea Engineering Design Institute,Zhanjiang 524006,China;The Third Bureau directly under China Coast Guard,Guangzhou 520320,China;Power China Qinghai Electric Power Design Institute Co.,Ltd.,Xining 810008,China)

机构地区：[1]海军南海工程设计院,广东湛江524006 [2]中国海警局直属第三局,广东广州520320 [3]中国电建集团青海省电力设计院有限公司,青海西宁810008

出　　处：《测绘地理信息》2022年第2期45-48,共4页Journal of Geomatics

基　　金：国家自然科学基金青年科学基金(41801379)。

摘　　要：无验潮水深测量是利用RTK(real-time kinematic)测得的GPS天线精确的三维坐标确定定位点的平面位置,RTK高程结合由测深仪同步测得的水底点水深值换算出同一平面位置上定位点的水下高程或水深值。无验潮水深测量具有工作效率高,省工省时等特点。本文对无验潮及验潮水深测量方式的原理进行了介绍,对无验潮水深测量的测深精度进行了分析,依托工程实例,采集验潮和无验潮两种方式的测深数据,以数学统计方法对两组数据进行比对分析,并对无验潮水深测量的测深精度进行了检验。Non-tidal observation bathymetric survey is to determine the plane position of the positioning point by using the accurate three-dimensional coordinates of the GPS antenna measured by RTK(real-time kinematic). The RTK elevation is combined with the water depth value of the tide gauge station synchronously measured by the bathymeter to convert the underwater elevation or water depth value of the positioning point at the same plane position. Non-tidal observation bathymetric survey is economical and has high working efficiency. This paper introduces the theory of tidal and non-tidal observation bathymetric survey,analyses the depth accuracy of non-tidal way. Based on engineering cases,the paper collects the data of depth measuring of both methods,applies the statistical method to comparatively analyses the results of both survey ways,and verifies the depth accuracy of non-tidal observation bathymetric survey.

关 键 词：无验潮 RTK(real-time kinematic)技术 高程异常 水深测量 精度分析 

分 类 号：P229[天文地球—大地测量学与测量工程]