利用IGS数据和GAMIT解算观测点CGCS2000坐标探讨  

Using IGS Data and GAMIT to Solve the Observation Point CGCS2000 Coordinate Study

作　　者：王渝 郭建鹏 朱超 WANG Yu(China Construction Southrwest Survey and Design Research Institute Co.,Ltd.,Chengdu 610052,China)

机构地区：[1]中国建筑西南勘察设计研究院有限公司,成都610052 [2]长春工程学院,长春130021

出　　处：《长春工程学院学报（自然科学版）》2021年第4期53-56,共4页Journal of Changchun Institute of Technology：Natural Sciences Edition

摘　　要：为了验证基于IGS数据和GAMIT解算CGCS2000坐标的可行性,选择5个已知C级控制点,通过将这些点重新观测、与IGS站联测、利用TEQC软件进行数据质量检查、使用GAMIT解算基线,再通过网平差等获得其CGCS2000坐标,并将计算坐标与已知坐标进行比较。结果表明,获得的坐标可达到最大点位差0.02 m、最小点位差0.012 m、平均点位差0.016 m,满足实际工程需要。In order to verify the feasibility of calculating CGCS2000 coordinates based on IGS data andGAMIT,in this study 5 known C-level control points are selected,and the calculated coordinates are compared with known coordinates by re-observing these points.combining with IGS stations,using TEQC software for data quality inspection,using GATT to calculate baselines,and then their CGCS2000 coordinatesare obtained through network adjustment,etc.The results show that the obtained coordinates can reach the Maximum point error 0.02 m,the minimum point error 0.012 m,and the average spread of 0.016 m,andmeet the actual engineering needs.

关 键 词：CGCS2000坐标 GAMIT 网平差法 布尔莎七参数法 

分 类 号：P22[天文地球—大地测量学与测量工程]