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GNSS卫星三种站心极坐标的关系
引用本文:刘长建,黄献波,吴洪举.GNSS卫星三种站心极坐标的关系[J].全球定位系统,2011,36(3):1-4.
作者姓名:刘长建  黄献波  吴洪举
作者单位:1. 信息工程大学测绘学院,河南郑州,450052
2. 河南财经政法大学基建处,河南郑州,450052
摘    要:全球导航卫星系统(GNSS)的应用中有三种常用的站心极坐标系,天顶方向分别为参考椭球面外法线方向、铅垂线上方向和地心向径方向。传统大地测量中给出的部分极坐标关系式是高度角很小时的近似公式,不再适用于GNSS卫星,另外,实用中还有混淆或近似使用不同站心极坐标的情况。为此,给出了三种站心极坐标的严格关系式,分析了它们的差异规律及量级,为正确使用它们提供了参考。

关 键 词:GNSS  站心极坐标  椭球面法线  铅垂线  地心向径

The Relationship of Three Geocentric Polar Coordinates about GNSS Satellites
LIU Chang-jian,HUANG Xian-bo,WU Hong-ju.The Relationship of Three Geocentric Polar Coordinates about GNSS Satellites[J].Gnss World of China,2011,36(3):1-4.
Authors:LIU Chang-jian  HUANG Xian-bo  WU Hong-ju
Institution:LIU Chang-jian1,HUANG Xian-bo2,WU Hong-ju1(1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou Henan 450052,China,2.Bureau of Engineering,Henan University of Finance and Politics,China)
Abstract:There are three geocentric polar coordinate systems usually used in Global Navigation Satellite System(GNSS),which zenith directions are ellipsoid outside normal,plumb upward line and geocentric radius respectively.Some formulae given in traditional geodesy are not suitable to GNSS satellites due to approximation with small altitude angles.In other cases,these geocentric polar coordinates are unfortunately misused or approximately replaced by each other.In this paper,their rigorous relationships are given f...
Keywords:GNSS  geocentric polar coordinate  ellipsoid normal  plumb line  geocentric radius  
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