作者机构:[1]School of Geology Engineering and Surveying, Chang'an University, Xi'an 710054, China, [2]State Key Laboratory of Geo-information Engineering, Xi'an 710054, China, [3]Xi' an Research Institute of Surveying and Mapping, Xi' an 710054, China
相关基金:This work is supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China (2007B51) and Natural Science Foundation of China (41174008).