1. School of information Science and Engineering, Engineering Research Center for Metallurgical Automation and Detecting Technology Ministry of Education, Wuhan University of Science and Technology, Wuhan, China
2. Hubei Institute of Measurement and Testing Technology, Wuhan, China
3. School of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan, China
4. School of Electronic Engineering, Wuhan Vocational College of Software and Engineering, Wuhan, China