Research on the accuracy of atmospheric precipitable water vapor with BDS

doi:10.13474/j.cnki.11-2246.2019.0145

Abstract

Abstract:

With the continuous update of the GAMIT software version, the processing of BDS data baseline settlement has become possible. In this paper, an inversion method of BDS atmospheric precipitable water vapor based on GAMIT software is proposed, and atmospheric precipitable water vapor calculated by using sounding data and based on the GPS is used to verify the accuracy. The experimental results show that the average relative error and root mean square error between atmospheric precipitable water vapor based on the BDS and calculated by using sounding data are less than 2 mm, and the correlation coefficient is greater than 0.98; the average relative error and root mean square error between atmospheric precipitable water vapor based on the BDS and based on the GPS are less than 3 mm, and the correlation coefficient is greater than 0.96. The BDS inversion results are highly accurate and basically meet the meteorological needs.

Key words: GNSS meteorology, GPS, BDS, atmospheric precipitable water vapor, accuracy analysis

CLC Number:

P228.4

GAO Zhiyu, LI Jianzhang, LIU Yanjun, LIU Jiangtao, ZHANG Jianhui. Research on the accuracy of atmospheric precipitable water vapor with BDS[J]. 测绘通报, 2019, 0(5): 35-38,47.

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