Long-term time-varying characteristics of UPD products generated by a global and regional network and their interoperable application in PPP

Wang, Hu; Hou, Yangfei; Dang, Yamin; Jinzhong, Bei; Zhang, Yize; Wang, Jiexian; Cheng, Yingyan; Gu, Shanqiang

doi:10.1016/j.asr.2020.10.005

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…In previous studies, UPD is generally considered to be a constant value. However, due to environmental changes, UPD is not a constant, but a value that changes with the environment [7], so UPD needs to be dynamically estimated [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the influence caused by UPD on GNSS positioning using SDCP measurements

Xiao

Si²,

Ye³

et al. 2022

International Conference on Computer Application and Information Security (ICCAIS 2021)

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The position service provided by global satellite navigation system (GNSS) has high-precision characteristics, it is widely used in the field of building deformation monitoring. As the baseline between the receivers is short for the above application scope, the common clock source method can be used to eliminate some error items. For common clock SDCP measurement, the uncalibrated phase delay is a major error item. The UPD feature and the usual estimation methods were analyzed and verified by experimental tests in the paper. The experimental results testify that the UPD is a random variable, which varies with the ambient temperature. The UPD can be eliminated by using ARMA filter, and the ARMA filtered SDCP position accuracy can be improved by more than 20% compared to the DDCP positioning result.

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Section: Introductionmentioning

confidence: 99%