Funding for this research was provided by:
National Natural Science Foundation of China (61201381, 61401513, 61772548)
China Postdoctoral Science Foundation (2016M592989)
the Self-Topic Foundation of Information Engineering University (2016600701)
the Outstanding Youth Foundation of Information Engineering University (2016603201)
Key Scientific and Technological Research Project in Henan Province (192102210092)
Article History
Received: 16 July 2018
Revised: 6 June 2019
Accepted: 8 June 2019
First Online: 25 June 2019