Solution and Analysis of Earth Orientation Parameters with 2006-2015 VLBI Observation

LI Fei; SHAO Xianyuan; QU Chunkai; YAN Jianguo; HAO Weifeng; YE Mao; YANG Xuan; JIN Weitong

doi:10.13203/j.whugis20170365

Volume 44 Issue 11

Nov. 2019

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Geomatics and Information Science of Wuhan University > 2019 > 44(11): 1581-1587. > DOI: 10.13203/j.whugis20170365

LI Fei, SHAO Xianyuan, QU Chunkai, YAN Jianguo, HAO Weifeng, YE Mao, YANG Xuan, JIN Weitong. Solution and Analysis of Earth Orientation Parameters with 2006-2015 VLBI Observation[J]. Geomatics and Information Science of Wuhan University, 2019, 44(11): 1581-1587. DOI: 10.13203/j.whugis20170365

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Solution and Analysis of Earth Orientation Parameters with 2006-2015 VLBI Observation

1.
State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China
2.
Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China

Funds:

The National Natural Science Foundation of China 41374024

The National Natural Science Foundation of China 41604004

The National Natural Science Foundation of China 41174019

Hubei Province Natural Science Foundation Innovation Group Project 2015CFA011

the Open Research Fund of State Key Laboratory of Astronautic Dynamics 2016ADL-DW0103

the Open Research Fund of State Key Laboratory of Space Target Measurement

China Postdoctoral Science Foundation 2016M602360

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Author Bio:
LI Fei, PhD, professor, specializes in the theory and application of gravity field. E-mail:fli@whu.edu.cn
Corresponding author:
QU Chunkai, postgraduate.E-mail: quchunkai999@163.com
Received Date: April 24, 2018
Published Date: November 04, 2019

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Abstract

Abstract

It is currently in the period of construction of the next generation of very long baseline interferometry (VLBI) systems. This is a good opportunity for Wuhan University satellite station. We count observation times of different stations and number of stations from 2006 to 2015. We process VLBI data from 2006 to 2015 to estimate Earth orientation parameters (EOP) using Vienna VLBI and satellite software (VieVS). Internal and external accord accuracy of EOP during 2006-2015 are credible. Ten years of changes of the length of day (△_LOP) are estimated and compared with the results of International Earth Rotation Service (IERS). The short (9.13 d), half-month (13.67 d), month (27.65 d), half-year (182.50 d) and year (365.00 d) periods of △_LOP are extracted with fourier analysis. The year, Chandler periods of polar motion and the free core nutation period of nutations correction are also extracted. This solution can accumulate some experience of VLBI data analysis for Wuhan University satellite station.
- VLBI,
- VieVS,
- Earth orientation parameters,
- Fourier analysis

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