School of Earth Sciences and Engineering,Hohai University,Nanjing 210098,China;
School of Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,China;
School of Earth Sciences and Engineering,Hohai University,Nanjing 210098,China;
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China;
Key Laboratory of Virtual Geographic Environment(Ministry of Education),Nanjing Normal University,Nanjing 210023,China;
Department of Electrical Engineering,University of Texas at Dallas,Richardson,TX 75080-3021,USA;
Department of Electrical Engineering,University of Texas at Dallas,Richardson,TX 75080-3021,USA;