Application of Shepard Method Based on Quadric to GPS Height Fitting
Huang Yongjun · Geospatial Information · 2010
Because of some disadvantages of current methods in GPS height fitting,the article introduced a fitting method-Shepard fitting method based on quadric.The fitting methods,such as quadric fitting,Shepard curved surface fitting and Shepard fitting method based on quadric were used for approximating height anomaly in an experiment.The result shows that the precision can be improved evidently by Shepard fitting method based on quadric.