1. School of Electronic Engineering, Xi’an Shiyou University, Xi’an 710065, China
2. National Key Laboratory of Science and Technology on Aerospace Intelligent Control, Beijing Aerospace Automatic Control Institute, Beijing 100854, China
3. School of Engineering, RMIT University, Bundoora, Melbourne 3083, Australia
4. School of Automatics, Northwestern Polytechnical University, Xi’an 710072, China