[1] Jiangxi Tech Coll Mfg, Nanchang, Peoples R China
[2] Nanchang Univ, Sch Informat Engn, Nanchang 330031, Peoples R China
[3] Natl Univ Def Technol, Coll Elect Engn, Hefei, Peoples R China
[4] Univ Calif Riverside, Dept Elect & Comp Engn, Riverside, CA USA