School of Geodesy and Geomatics University 430079;
School of Resource Science and Engineering University of Science and Technology;
School of Agriculture and Natural Resource University City 460000 Nam;
State Key Laboratory of Information Engineering in Surveying and Remote Sensing University 430079;
Guangxi Key Laboratory of Spatial Information and Geomatics 541006;
Optical fiber frequency transfer(OFFT); Optical fiber; Frequency transfer; GEOPOTENTIAL;