STUDY ON NON-UNIFORM B-SPLINE LEAST SQUARES APPROXIMATION OF REGIONAL GEOMAGNETIC ANOMALY FIELD
Wang Xianglei 1) ;Liu Peigen 2) ; and Yang Hong 2)
1)Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052;2)61081Troops, Beijing 100094
Abstract The basic principle of nonuniform Bspline least squares fitting is discussed. Besides, the corresponding computation methods for irregular points and regular grid points are presented. Furthermore, an actual application in regional geomagnetic anomaly field are given. The results indicate that the accuracy and stability of this method can be ensured.
Key words ：
least squares
nonuniform Bspline
regional geomagnetic anomaly field
fitting
stability\
Received: 01 January 1900
Corresponding Authors:
Wang Xianglei
Cite this article:
Wang Xianglei ,Liu Peigen ,and Yang Hong . STUDY ON NON-UNIFORM B-SPLINE LEAST SQUARES APPROXIMATION OF REGIONAL GEOMAGNETIC ANOMALY FIELD[J]. , 2012, 32(1): 68-71.
Wang Xianglei ,Liu Peigen ,and Yang Hong . STUDY ON NON-UNIFORM B-SPLINE LEAST SQUARES APPROXIMATION OF REGIONAL GEOMAGNETIC ANOMALY FIELD[J]. jgg, 2012, 32(1): 68-71.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2012/V32/I1/68
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