Funding for this research was provided by:
National key Research Program of China “Collaborative Precision Positioning Project” (2016YFB0501900)
China Natural Science Funds (41231064, 41674022, 41704038, 41574033, 41621091)
State Key Laboratory of Geodesy and Earth’s Dynamics (SKLGED2017-3-1-EZ)
Article History
Received: 29 August 2017
Accepted: 21 March 2018
First Online: 27 March 2018