基于SZBDCORS的区域基准建立方法  

Regional Benchmark Establishment Method Based on SZBDCORS

作　　者：陈远鸿 杨志敏 CHEN Yuanhong;YANG Zhimin(Shenzhen Investigation&Research Institute Co.,Ltd.,Shenzhen 518034,China;Wuhan Geomatics Institute,Wuhan 430000,China)

机构地区：[1]深圳市勘察研究院有限公司,广东深圳518000 [2]武汉市测绘研究院,湖北武汉430022

出　　处：《城市勘测》2022年第6期88-90,95,共4页Urban Geotechnical Investigation & Surveying

摘　　要：全国启用CGCS2000坐标以来,各地陆续建立地方坐标系与CGCS2000坐标之间的转换关系,构造区域参考框架。结合深圳市已有CORS基准站及控制点情况,联合周边区域IGS站点,利用GAMIT软件解算基线,利用卡尔曼滤波进行平差,建立了深圳市区域参考框架。通过野外实测分析,在CGCS2000坐标系下,深圳市区域参考框架可提供平面精度5 cm以内,高程精度10 cm以内的定位服务,为深圳市经济建设提供基础测绘保障。Since the use of CGCS2000 coordinates nationwide, many cities have established the conversion relationship between local coordinate system and CGCS2000 coordinates to construct regional reference framework. Combined with the existing SZBDCORS stations and control points in Shenzhen, combined with the surrounding IGS stations, the baseline is solved by GAMIT software to establish the Shenzhen regional reference framework. Through field measurement and analysis, under the CGCS2000 coordinate system, the Shenzhen regional reference frame can provide positioning services with plane accuracy of less than 5 cm and elevation accuracy of less than 10 cm, so as to provide guarantee for the economic construction of Shenzhen.

关 键 词：CGCS2000 区域参考框架 CORS GAMIT 

分 类 号：P228[天文地球—大地测量学与测量工程]