[Li, Yongfu; Huang, Longwang; Gao, Xinbo; Fan, Junhong] Chongqing Univ Posts & Telecommun, Sch Automat, Key Lab Intelligent Air Ground Cooperat Control Un, Chongqing 400065, Peoples R China.
[Huang, Gang] Zhejiang Univ, Sch Elect Engn, Hangzhou 310027, Peoples R China.
[Hua, Wei] Zhejiang Lab, Hangzhou 311121, Peoples R China.
[Wu, Wei] Chongqing Jiaotong Univ, Chongqing Key Lab Intelligent Integrated & Multidi, Chongqing 400074, Peoples R China.
[Wu, Wei] Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha 410114, Peoples R China.