[Sun, Yang] 72465 Unit PLA, Jinan 250022, Shandong, Peoples R China.
[Zhao, Ling; Deng, Hanhan] Cent South Univ Technol, Sch Geogsci & Infophys, Changsha 410083, Hunan, Peoples R China.
[Li, Sumin] Changsha Univ Sci & Technol, Sch Architecture, Changsha 610059, Hunan, Peoples R China.
[Zhang, Zhenshi] Natl Univ Def Technol, Coll Basic Educ, Changsha 410073, Hunan, Peoples R China.
[Du, Ronghua; Hou, Zhixiang] Changsha Univ Sci & Technol, Sch Vehicle & Mech Engn, Changsha 610059, Hunan, Peoples R China.