Abstract Aim at the problem of quality control and node choice in modeling local marine geomagnetic field based on multisurface function, a fitting method with combining robust trend surface and orthogonal least squares is proposed. In order to control the influence of some outstanding points to surface fitting, a robust fitting of the trend surface by using an equivalent weight is adopted and the adaptive node choosing method is proposed based on the effect of every node on the curve fitting calculated by using the orthogonal least squares as well. The results show that this method is more effective in accuracy and stability than normal method.
Chang Yifeng,Chai Hongzhou,and Wang Min. STUDY ON CONSTRUCTION OF LOCAL MARINE GEOMAGNETICFIELD MODEL BASED ON ORTHOGONAL LEAST SQUARE MULTI-SURFACE FUNCTION[J]. , 2012, 32(3): 86-89.
Chang Yifeng,Chai Hongzhou,and Wang Min. STUDY ON CONSTRUCTION OF LOCAL MARINE GEOMAGNETICFIELD MODEL BASED ON ORTHOGONAL LEAST SQUARE MULTI-SURFACE FUNCTION[J]. jgg, 2012, 32(3): 86-89.
