Quality analysis of the campaign GPS stations observation in Northeast and North China

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• 作者：Yaxuan Hu ; ^{happy_hu6921@sina.com" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Lin Cheng ; Xiong Wang
• 关键词：GPS ; Error ; Quality checking ; Station surrounding ; Northeast China ; North China
• 刊名：Geodesy and Geodynamics
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：7
• 期：2
• 页码：87-94
• 全文大小：2883 K

文摘

TEQC is used to check the observations quality of 173 GPS campaign stations in the Northeast and North China. Each station was observed with an occupation of 4 days. The quality of the 692 data files is analyzed by the ratio of overall observations to possible observations, MP1, MP2 and the ratio of observations to slips. The reasons for multipath and cycle slips can be derived from the photos taken in the field. The results show that the coverage of trees and buildings/structures, and the interference of high-voltage power lines near the stations are the main reasons. In a small area, the horizontal velocity field in the period 2011–2013 is exemplified, where the magnitudes and directions of the 4 stations' rates are clearly different with that of other stations. It seems that the error caused by the worse environment cannot be mitigated through post processing. Therefore, these conclusions can help the establishment of GNSS stations, measurements, data processing and formulating standards in future.