Updates are available Correction dated 2020-03-31
Click to view Correction: https://doi.org/10.1186/s43020-020-00015-x
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Authors
Li, Rui
Zheng, Shuaiyong
Wang, Ershen
Chen, Jinping
Feng, Shaojun
Wang, Dun
Dai, Liwen
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Funding
Funding for this research was provided by:
Talent Project of Revitalization Liaoning (XLYC1907022)
National Natural Science Foundation of China (No.61571309)
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Article History
Received: 14 August 2019
Accepted: 20 February 2020
First Online: 16 March 2020
Change Date: 31 March 2020
Change Type: Correction
Change Details: First, in the first paragraph of this article, the sentence “In recent years, China has been actively promoting the construction and development of the BeiDou Navigation Satellite System (BDS), and by the end of the year 2000 the construction of BDS-1 was complete and BDS-1 began to provide GPS services for China.” should be changed into “In recent years, China has been actively promoting the construction and development of the BeiDou Navigation Satellite System (BDS), and by the end of the year 2000 the construction of BDS-1 was completed and BDS-1 began to provide services for China.” The word “GPS” should be removed.
Competing interests
: The authors declare that they have no competing interests.
