Noise analysis and velocity field correction of Inner Mongolia CMONOC coordinate time series

LI Xin; YAO Dexin

doi:10.12265/j.gnss.2021070801

Volume 46 Issue 6

Dec. 2021

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GNSS World of China > 2021 > 46(6): 68-73. > DOI: 10.12265/j.gnss.2021070801

LI Xin, YAO Dexin. Noise analysis and velocity field correction of Inner Mongolia CMONOC coordinate time series[J]. GNSS World of China, 2021, 46(6): 68-73. DOI: 10.12265/j.gnss.2021070801

Citation:

LI Xin, YAO Dexin. Noise analysis and velocity field correction of Inner Mongolia CMONOC coordinate time series[J]. GNSS World of China, 2021, 46(6): 68-73. DOI: 10.12265/j.gnss.2021070801

Citation:

LI Xin, YAO Dexin. Noise analysis and velocity field correction of Inner Mongolia CMONOC coordinate time series[J]. GNSS World of China, 2021, 46(6): 68-73. DOI: 10.12265/j.gnss.2021070801

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Noise analysis and velocity field correction of Inner Mongolia CMONOC coordinate time series

LI Xin^{1, 2, 3, ,},
YAO Dexin^{1, 2, 3}

1.
College of Surveying and Geo-informatics, Lanzhou Jiaotong University, Lanzhou730070, China
2.
National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring , Lanzhou 730070, China
3.
Gansu Provincial Engineering Laboratory for National Geographic State Monitoring , Lanzhou 730070, China

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Received Date: July 07, 2021
Available Online: December 28, 2021

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Abstract

Abstract

This paper use the Global Navigation Satellite System (GNSS) data product service platform of China earthquake administration to obtain the observation data of 15 continuous terrestrial network stations in the Inner Mongolia from 2010-06 to 2021-06, and use GAMIT/GLOBK software and HRCTOR software to calculate the coordinate time series after removing the singular values. Finally, Bayesian information criterion (BIC) numerical analysis is combined with to determine the optimal noise model: the optimal model of Inner Mongolia coordinate time series in the east (E) direction is white noise+flicker noise (WN+FN), and the optimal noise model in the north (N) and zenith (U) directions is white noise+power law noise (WN+PL). The optimal noise model is used to correct the velocity field. Under the ITRF14 framework, the average moving speed of the land network in Inner Mongolia is 30.653 mm/a, and the moving direction is 26°57′51″SEE; The average moving speed in the vertical direction is 0.792 mm/ a.
- land state network,
- time series,
- Bayesian information criterion (BIC) numerical analysis method,
- noise model,
- velocity field

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