SHU Chanfang, LI Fei, HAO Weifeng. Geoid/Quasigeoid Fitting Based on Equivalent Point Masses[J]. Geomatics and Information Science of Wuhan University, 2011, 36(2): 231-234.
Citation: SHU Chanfang, LI Fei, HAO Weifeng. Geoid/Quasigeoid Fitting Based on Equivalent Point Masses[J]. Geomatics and Information Science of Wuhan University, 2011, 36(2): 231-234.

Geoid/Quasigeoid Fitting Based on Equivalent Point Masses

  • To determine an orthometric height using GPS,it is necessary to know the geoid/ quasigeoid undulation.Many methods have been studied for the interpolation of discrete GPS/leveling data to get the geoid/quasigeoid undulation unknown.A new half free-positioned point masses model is proposed based on equivalent sources theory.Corresponding iterative algorithm to construct the point masses is also presented considering the relationship of the nearest GPS/leveling points.The results in Hong Kong and Shenzhen show that the point masses model is efficient for the interpolation of geoid/quasigeoid undulation.
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