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《Science of Surveying and Mapping》 2009-02
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The influences of GPS ephemerises accuracy to the precise point positioning

LI Peng①, XIONG Yong-liang①, HUANG Yu-long①, CHU Liang②(①Dept of Surveying Engineering, Southwest Jiaotong University, Chengdu 610031, China;②China Railway Eryuan Engineering Group CO.LTD, Chengdu 610031, China)  
Using the precise ephemeris and the precise satellite clock correction can realize the precise point positioning (PPP) using a single receiver. This article introduces briefly the principle and the technical key of the precise point positioning. Then, accuracies and latencies of three kind of precise ephemerises (IGF、IGR、IGU) provided currently by International GPS Service (IGS) are analyzed. This article has further analyzed influences of three kind of precise ephemerises to the precise point positioning accuracy according to the data. Through the accuracy analysis, we can draw a conclusion that a centimeter level of the pointing accuracy can be achieved by using the IGS ultra rapid ephemeris, which provides a reference to real-time kinematic precise point positioning.
【CateGory Index】: P228.4
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 LIU Jingnan 1 YE Shirong 2 (1 Presidential Secretariat,Wuhan University,Luojia Hill,Wuhan,China,430079) (2 GPS Research Center,Wuhan University,129 Luoyu Road,Wuhan,China,430079) [FK(W11?40ZQ];GPS Precise Point Positioning Using Undifferenced Phase Observation[J];Editoral Board of Geomatics and Information Science of Wuhan University;2002-03
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 GUO Gu-Liang1 , ZENG Fan-He2 (1. Zhanjiang Planning & Design Reconnaissance Institue, Zhanjiang, 524002,China; 2.Department of Surveying Engineering, Central South University of Technology, Changsha, 410083, China);A Method of Fast Gaining Precise WGS-84 Coordinates of All GPS Control Points[J];Beijing Surveying and Mapping;2006-03
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【Secondary Citations】
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1 HUANG Cheng HU Xiao Gong CHEN Zhong Yi (Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030) (National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012);THE ANALYSIS OF REGIONAL GPS NETWORK WITH PRECISE POINT POSITIONING[J];Acta Astronomica Sinica;2001-03
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