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

doi:10.11947/j.AGCS.2018.20170147

Abstract

Abstract: 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.

Key words: BeiDou satellite navigation system, precision point positioning, PANDA, accuracy analysis, crustal motion monitoring

CLC Number:

P227

WANG Yuebing, GAN Weijun, CHEN Weitao, LIAN Weiping, YOU Xinzhao. The Analysis of Precise Point Positioning of BeiDou Navigation Satellite System Application in Crustal Motion Monitoring[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(1): 48-56.

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