APPLICATION OF GPS LEVELING FITTING BASED ON EGM2008 IN COMPLEX TERRAIN
Guan Zhen;Chen Jianjie; Yu Bohu; and Ru Yi
Northwest Institute of Nuclear Technology,Xi’an 710024
Abstract To improve the GPS leveling fitting accuracy of complex terrain, the authors analyzed the accuracy and application state of EGM2008. Through taking two test areas in Northwest China as examples, the accuracies of height fitting were studied with the method of removingrestoring Earth gravity field combined with conventional GPS leveling fitting and comparison with the result only with conventional method. The results show that the removingrestoring method based on Earth gravity field can achieve better accuracy in complex terrain areas.
Key words ：
EGM2008
height anomaly
surface fitting
multidimensional function
removing-restoring
Received: 01 January 1900
Corresponding Authors:
Guan Zhen
Cite this article:
Guan Zhen,Chen Jianjie, Yu Bohu et al. APPLICATION OF GPS LEVELING FITTING BASED ON EGM2008 IN COMPLEX TERRAIN[J]. , 2012, 32(4): 120-124.
Guan Zhen,Chen Jianjie, Yu Bohu et al. APPLICATION OF GPS LEVELING FITTING BASED ON EGM2008 IN COMPLEX TERRAIN[J]. jgg, 2012, 32(4): 120-124.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2012/V32/I4/120
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