[Zhong, Hang; Miao, Zhiqiang; Wang, Yaonan; Mao, Jianxu] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China.
[Li, Ling] Changsha Univ Sci & Technol, Engn Training Ctr, Changsha 410114, Peoples R China.
[Zhang, Hui] Changsha Univ Sci & Technol, Coll Elect & Informat Engn, Changsha 410114, Peoples R China.
[Chen, Yanjie] Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350116, Peoples R China.
[Fierro, Rafael] Univ New Mexico, Multiagent Robot & Heterogeneous Syst Lab, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA.