The Analysis of Precise Point Positioning of BeiDou Navigation Satellite System Application in Crustal Motion Monitoring

被引：0
|
作者：
Wang Y. [1 ,2 ]
Gan W. [1 ]
Chen W. [2 ]
Lian W. [2 ]
You X. [2 ]
机构：
[1] State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing
[2] National Earthquake Infrastructure Service, Beijing
来源：
| 2018年 / SinoMaps Press卷 / 47期
关键词：
Accuracy analysis; BeiDou satellite navigation system; Crustal motion monitoring; PANDA; Precision point positioning;
D O I：
10.11947/j.AGCS.2018.20170147
中图分类号：
学科分类号：
摘要：
Based on more than two years BDS/GPS data observed by seven stations, we used precise point positioning (PPP) model of the PANDA software developed by Wuhan University, analyzed the positioning accuracy of single system and discussed the ability of BDS in crustal motion monitoring. The results showed that the BDS positioning accuracy in the horizontal direction was about 17 mm and the vertical direction was about 40 mm. The GPS positioning accuracy in the horizontal direction was better than 10 mm and the vertical direction was about 14 mm. The results of baseline statistics showed that BDS had lower ability to detect weak signals than GPS system, but it was still able to accurately reflect the characteristics of baseline length and rate between two sites. Comparing the velocity fields obtained from BDS and GPS, the results showed that the difference of the two sets of velocity field in horizontal directions was 1~2 mm/a, and there was no systematic difference. Although BDS PPP accuracy was lower than GPS, but it could still be used to monitor the crustal motion of the large deformation area. © 2018, Surveying and Mapping Press. All right reserved.
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页码：48 / 56
页数：8
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