Funding for this research was provided by:
National Natural Science Foundation of China (61764001, 61474031)
Guangxi Key Laboratory of Precision Navigation Technology and Application (DH201701)
Guangxi District Education Office projects to enhance the basic ability of young teachers (2017KY0201)
Japan Society for the Promotion of Science (16K06268)
Article History
Received: 4 January 2018
Accepted: 19 July 2018
First Online: 13 August 2018