[1] School of Physical and Electronic Sciences, Shanxi Datong University, Datong,037009, China
[2] School of Automation, Northwestern Polytechnical University, Xi’an,710072, China
[3] Shenzhen Research Institute, Northwestern Polytechnical University, Shenzhen,518057, China
[4] School of Electrical and Control Engineering, Shaanxi University of Science and Technology, Xi’an,710054, China