INTERPOLATION METHODS AND ACCURACY ANALYSIS BASED ON GRID QUASIGEOID MODEL
Zhang Xingfu; and Wei Dehong
Department of Surveying and Mapping, Guangdong University of Technology, Guangzhou 510006
Abstract There are two factors: affecting the accuracy of GPS height transformation based on quasigeoid model, the geodetic height accuracy and interpolated height anomaly accuracy.On the basis of the simulation and practical quasigeoid models, the effect and accuracy of GPS height anomaly interpolation are analyzed with four methods, including inverse distance interpolation, linear interpolation, Shepard interpolation and Chebyshev interpolation, the results show that the Chebyshev interpolation method is accurate and stable for the high resolution quasigeoid model.
Key words ：
quasi-geoid model
interpolation of height anomaly
GPS height transformation
accuracy analysis
Chebyshev interpolation
Received: 01 January 1900
Corresponding Authors:
Zhang Xingfu
Cite this article:
Zhang Xingfu,and Wei Dehong. INTERPOLATION METHODS AND ACCURACY ANALYSIS BASED ON GRID QUASIGEOID MODEL[J]. , 2011, 31(1): 113-116.
Zhang Xingfu,and Wei Dehong. INTERPOLATION METHODS AND ACCURACY ANALYSIS BASED ON GRID QUASIGEOID MODEL[J]. jgg, 2011, 31(1): 113-116.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2011/V31/I1/113
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