Funding for this research was provided by:
National Natural Science Foundation of China (61601162, 61501154)
National Natural Science Foundation of China (61671197)
Open Foundation of first level Zhejiang key in key discipline of Control Science and Engineering
Article History
Received: 28 September 2016
Accepted: 15 June 2017
First Online: 22 June 2017
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.