基于IGS站联测的控制点CGCS2000坐标求取  

Getting CGCS2000 coordinates of control points based on joint surveying with IGS stations

作　　者：刘明波[1] 李祖锋[1] 鹿恩锋[1] Liu Mingbo;Li Zufeng;Lu Enfeng(Poacer China Northuest Engineering Corporation Limited,Xi'an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《工程勘察》2021年第3期47-49,67,共4页Geotechnical Investigation & Surveying

基　　金：中国电建集团西北勘测设计研究院有限公司科技项目(项目编号:XBY-2016-10)。

摘　　要：介绍了2000国家大地坐标系的定义和基于IGS站联测求取控制点2000国家大地坐标系坐标的方法。采用框架转换方法求取中国及周边BJFS、CHAN、DAEJ、IRKM、LHAZ、NVSK、POL2、TWTF、YSSK等IGS站的ITRF97框架2000.0历元坐标。利用联测3个IGS站的方法计算待求控制点的2000国家大地坐标系坐标,通过与已知数据对比,计算控制点坐标的精度优于0.07m,为计算偏远地区控制点的2000国家大地坐标系坐标提供了一种实用方法。The definition of CGCS2000 and the calculation method for getting the CGCS2000 coordinates of control points based on the IGS stations are described. The ITRF97 coordinates of BJFS,CHAN,DAEJ,IRKM,LHAZ,NVSK,POL2,TWTF,YSSK station in China and adjacentl area at epoch 2000. 0 are calculated by frame transformation then the CGCS2000 coordinates of control points are calculated by joint surveying with three IGS stations. Compared with the known data,the coordinate precision of control points is better than 0. 07 m. It provides a practical method for calculating the CGCS2000 coordinates of control points in remote areas.

关 键 词：2000国家大地坐标系 IGS站 框架转换 GAMIT软件 COSAGPS软件 

分 类 号：P226[天文地球—大地测量学与测量工程]