Funding for this research was provided by:
National Natural Science Foundation of China (61371177)
Major Scientific and Technological Special Project of Shandong Province (2015ZDXX0201B04)
Space Support Technology Fund Projects (2014-HT-HGD10)
Fundamental Research Funds for the Central Universities (HIT.NSRIF.201723)
Article History
Received: 19 September 2017
Accepted: 10 April 2018
First Online: 2 June 2018