Stochastic Optimization on Global Ground Reference Station Network for GNSS Satellite Precise Orbit Determination

HAN Deqiang; DANG Yamin; XUE Shuqiang; ZHANG Longping; WANG Hu; QI Ke

doi:10.13203/j.whugis20170099

Volume 44 Issue 6

Jun. 2019

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Geomatics and Information Science of Wuhan University > 2019 > 44(6): 799-805. > DOI: 10.13203/j.whugis20170099

HAN Deqiang, DANG Yamin, XUE Shuqiang, ZHANG Longping, WANG Hu, QI Ke. Stochastic Optimization on Global Ground Reference Station Network for GNSS Satellite Precise Orbit Determination[J]. Geomatics and Information Science of Wuhan University, 2019, 44(6): 799-805. DOI: 10.13203/j.whugis20170099

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Stochastic Optimization on Global Ground Reference Station Network for GNSS Satellite Precise Orbit Determination

HAN Deqiang^1,,
DANG Yamin^1, ,,
XUE Shuqiang¹,
ZHANG Longping^{1, 2},
WANG Hu¹,
QI Ke^{1, 2}

1.
Chinese Academy of Surveying and Mapping, Beijing 100830, China
2.
College of Geomatic, Shandong University of Science and Technology, Qingdao 266590, China

Funds:

The National Natural Science Foundation of China 41474011

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Author Bio:
HAN Deqiang, postgraduate, specializes in GNSS orbit determination.E-mail:deqianghana@163.com
Corresponding author:
DANG Yamin, professor. E-mail:dangym@casm.ac.cn
Received Date: August 04, 2017
Published Date: June 04, 2019

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Abstract

Abstract

The influence of the number and distribution of ground tracking stations on the precision orbit determination of navigation satellites is analyzed, and a stochastic optimization method for selecting the ground tracking stations for GNSS satellite precise orbit determination is proposed. The proposed method takes the information such as site location and quality into account, by assigning a certain probability to the global station. An algorithm is designed to optimally select a set of IGS ground tracking stations to achieve GPS satellite precise orbit determination of high precision. The results show that, based on the proposed method, by using 30 stations, the optimally-selected GPS precision orbit accuracy can reach 2.15 cm, while by using 60 stations the accuracy is better than 1.26 cm, the number of stations reaches 90, the precision of orbit determination can be increased to 1 cm.
- precise orbit determination,
- stochastic optimization,
- station distribution,
- GDOP

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References (17)

References

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