基于GAMIT/CosaGPS的工程控制网基线解算及网平差分析  

Baseline Solution and Network Adjustment Analysis of Engineering Control Network Based on GAMIT/CosaGPS

作　　者：黎鹏 刘林佳 付强 LI Peng;LIU Linjia;FU Qiang(Hydrological Bureau of Yangtze River Water Resources Commission,Hydrological and Water Resources Survey Bureau in the Middle Yangtze River,Wuhan 430074,China)

机构地区：[1]长江水利委员会水文局长江中游水文水资源勘测局,湖北武汉430074

出　　处：《测绘与空间地理信息》2020年第6期141-143,共3页Geomatics & Spatial Information Technology

摘　　要：丽水市滩坑饮水隧道工程控制网由25个控制点组成,观测同步基线最远达到了58 km。本文采用GAMIT10.61版本解算工程控制网基线和CosaGPS V5.21进行网平差解算。结果表明:GAMIT解算的工程基线优于10-6,Cosa GPS平差整网形最弱边的基线相对精度为为1/9 528 000,ppm=0.10。The control network of the beach pit drinking water tunnel project in Lishui City consists of 25 control points,and the obser-vation synchronous baseline reaches a maximum of 58 km.In this paper,GAMIT 10.61 version is used to solve the engineering control network baseline and CosaGPS V5.21 for network adjustment.The results show that the engineering baseline of the GAMIT solution is better than 10-6,and the baseline relative accuracy of the weakest side of the CosaGPS adjustment network is 1/9528000,ppm=0.10.

关 键 词：工程控制网 GAMIT基线解算 CosaGPS网平差 

分 类 号：P228.4[天文地球—大地测量学与测量工程]