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Positional Accuracy Analysis of Permanent GPS Sites Using Precise Point Positioning  

Kang, Joon-Mook (충남대학교 공과대학 토목환경공학부)
Lee, Yong-Wook (대한측량협회)
Kim, Min-Gyu (충남대학교 대학원 토목공학과)
Park, Joon-Kyu (충남대학교 건설방재연구소)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.26, no.5, 2008 , pp. 529-536 More about this Journal
Abstract
Researches about 3-D Positioning system using GPS were carried out many-sided by national organs, laboratories, the worlds of science. And most of researches were development of relative positioning algorithm and its applications. Relative positioning has a merit, which can eliminate error in received signals. But its error increase due to distance of baseline. GPS absolute positioning is a method that decides the position independently by the signals from the GPS satellites which are received by a receiver at a certain position. And it is necessary to correct various kinds of error(clock error, effect of ionosphere and troposphere, multi-path etc.). In this study, results of PPP(Precise Point Positioning) used Bernese GPS software was compared with notified coordinates by the NGII(National Geographic Information Institute) in order to analyze the positional accuracy of permanent GPS sites. And the results were compared with results of AUSPOS - Online GPS Processing Service for comparison with relative positioning.
Keywords
Precise Point Positioning; Bernese GPS Software; AUSPOS; Permanent GPS Sites;
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