Affiliation: | 1. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China;2. Science and Technology on Aircraft Control Laboratory, Beihang University, Beijing 100191, China;1. Department of Physics, King Abdulaziz University, Jeddah 21589, Saudi Arabia;2. Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;3. Department of Polymer Engineering, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria;4. Department of Telecommunications, Faculty of Telecommunications and Management, University of Telecommunications and Post, 1700 Sofia, Bulgaria;5. Department of Communication and Computer Engineering, Faculty of Engineering, South-West University ''Neofit Rilski'', 2400 Blagoevgrad, Bulgaria |