Data-processing induced GPS-positioning error  

作　　者：Tian Yunfeng 

机构地区：[1]Institute of Crustal Dynamics, China Earthquake Administration, Beiing 100085, China

出　　处：《Geodesy and Geodynamics》2012年第3期51-56,共6页大地测量与地球动力学（英文版）

基　　金：supported by the Institute of Crustal Dynamics Fund(ZDJ2009-01);National Natural Science Foundation of China(41104001)

摘　　要：Global Positioning System data processing is affected by many non-tectonic factors, including the common-mode errors （CME） in station-position time series. The characteristics and origins of CME are still not clear, due to uneven distribution of global GPS networks and the lack of reliable data of the position time series. In this work, data from 241 continuous GPS stations were reprocessed in a consistent way and the results were compared with those generated at Jet Propulsion Laboratory （JPL）. Improvements of residual positions were obtained for many low-quality stations, especially those located in Asia and Australia.Global Positioning System data processing is affected by many non-tectonic factors, including the common-mode errors （CME） in station-position time series. The characteristics and origins of CME are still not clear, due to uneven distribution of global GPS networks and the lack of reliable data of the position time series. In this work, data from 241 continuous GPS stations were reprocessed in a consistent way and the results were compared with those generated at Jet Propulsion Laboratory （JPL）. Improvements of residual positions were obtained for many low-quality stations, especially those located in Asia and Australia.

关 键 词：GPS position time series REPROCESSING non-tectonic common-mode error 

分 类 号：P228.4[天文地球—大地测量学与测量工程] U292.4[天文地球—测绘科学与技术]