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Authors
Ruan, Rengui https://orcid.org/0000-0001-9704-4488
Jia, Xiaolin
Feng, Laiping
Zhu, Jun
Huyan, Zongbo
Li, Jie
Wei, Ziqing
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (41704035)
Office of China Navigation Satellite System (GFZX03010403)
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Article History
Received: 1 July 2019
Accepted: 7 January 2020
First Online: 2 March 2020
Ethics approval and consent to participate
: Not applicable.
: The authors declare that they have no competing interests.
