Funding for this research was provided by:
National Natural Science Foundation of China (61633019)
Science Foundation of Chinese Aerospace Industry (JCKY2018204B053)
Autonomous Research Project of the State Key Laboratory of Industrial Control Technology
Article History
Received: 5 October 2019
Accepted: 7 July 2020
First Online: 16 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.