两种区域似大地水准面再精化方案的绩效分析  

Performance Analysis of Two Regional Quasi-geoid Re-refinement Schemes

作　　者：安艳辉[1] 施海洲 孔宪森 AN Yan-Hui;SHI Hai-zhou;KONG Xian-Sen(Jiangsu Provincial Institute of Surveying&Mapping Engineering,Nanjing Jiangsu 210013,China;Shanghai Shengtu Remote Sensing Engineering Technology,Co.,Shanghai 200000,China)

机构地区：[1]江苏省测绘工程院,江苏南京201113 [2]上海盛图遥感工程技术有限公司,上海200000

出　　处：《现代测绘》2021年第6期13-17,共5页Modern Surveying and Mapping

基　　金：江苏省自然资源厅科技计划项目(2020040)。

摘　　要：随着卫星导航定位技术的快速发展,人们对实时获取高精度平面和高程基准成果的需求越来越迫切。厘米级区域似大地水准面精化技术的发展为实时获取大地和高程基准成果提供了可能。分别介绍了利用GNSS/水准点和基于高程异常控制网两种区域似大地水准面再精化的方案思路,结合扬州市似大地水准面精化项目进行设计实施,从工作量、作业时间等多方面对两种方案进行综合比较分析,结果表明,基于高程异常控制网方案大幅提升了区域似大地水准面精化项目的项目绩效,对今后区域似大地水准面精化工作的开展具有较好的参考意义。With the rapid development of satellite navigation and positioning technology, it is more and more urgent to obtain the high-precision plane and elevation datum in real time. The development of centimeter-level regional quasi-geoid refinement technology has made it possible to obtain real-time geodetic and elevation datum results. This paper introduces two regional geoid re-refinement schemes based on GNSS/leveling point and elevation anomaly control network respectively, and combines the design and implementation of Yangzhou geoid refinement project, and makes a comprehensive comparison and analysis of the two schemes from the aspects of workload and operation time. The results show that the scheme based on elevation anomaly control network greatly improves the project performance of regional quasi-geoid refinement project, which has a good reference significance for the implementation of regional quasi-geoid elaboration in the future.

关 键 词：GNSS/水准点 似大地水准面 精化 高程异常控制网 绩效 

分 类 号：P228.4[天文地球—大地测量学与测量工程]