中国新一代大地基准—2000国家大地坐标系  

Chinese New Generation of Geodetic Datum—Chinese Geodetic Coordinate System 2000

作　　者：蔺文彬 战兴华 李厚朴[3] 

机构地区：[1]海军驻长春地区航空军事代表室,长春130033 [2]海军司令部航海保证部,北京100841 [3]海军工程大学导航工程系,武汉430033

出　　处：《舰船电子工程》2013年第8期19-21,共3页Ship Electronic Engineering

基　　金：973计划资助(编号:2012CB719902);国家自然科学基金(编号:41071295;41201478)资助项目

摘　　要：采用地心坐标系作为大地基准是国际测量界的总趋势。论文详细介绍了2008年7月1日启用的中国三维地心坐标系CGCS2000的定义及其实现,给出了采用参考椭球的定义常数和导出常数,将CGCS2000与WGS84进行了比较,分析了椭球扁率变化引起的同一点在两种坐标系下大地坐标和两种椭球面上正常重力、正常重力垂直梯度的差异。It is a general trend to adopt the geocentric coordinate system as a geodetic datum for the international measurement commu- nity. The definition and realization of Chinese geocentric three-dimensional coordinate system （CGCS2000） which has been employed since July 1st, 2008 are introduced in detail. The defining parameters and derived constants of the reference ellipsoid used are given. The differences of geodetic coordinate of a point between the two coordinate systems, normal gravity and vertical gradient of normal gravity on the two ellipsoids caused by the change of the flattening of the ellipsoid are analyzed.

关 键 词：大地基准 地心坐标系 CGCS2000 WGS84 

分 类 号：P22[天文地球—大地测量学与测量工程]