1. Fujian Key Laboratory of Special Intelligent Equipment Safety Measurement and Control, Fujian Special Equipment Inspection and Research Institute, Fuzhou, China
2. Guangxi Key Laboratory of Digital Infrastructure, Guangxi Information Center, Nanning, China
3. School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo, China
4. Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada