B.Sc., Shandong University of Science & Technology, Taian, P.R.
China, 1991.
M.Sc., Wuhan Technical University of Surveying & Mapping, Wuhan,
P.R. China, 2000.
Ph.D., Institute of Geodesy & Geophysics, Chinese Academy of
Sciences, Wuhan, P.R. China, 2003.