%0 Journal Article
%T STUDY ON CONSTRUCTION OF LOCAL MARINE GEOMAGNETIC FIELD MODEL BASED ON ORTHOGONAL LEAST SQUARE MULTI-SURFACE FUNCTION<br>基于正交最小二乘多面函数构建局域海洋地磁场模型研究
%A Chang Yifeng
%A Chai Hongzhou
%A Wang Min
%A <br>常宜峰
%A 柴洪洲
%A 王敏
%J 大地测量与地球动力学
%D 2012
%I 
%X Aim at the problem of quality control and node choice in modeling local marine geomagnetic field based on multi-surface 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.
%K local marine geomagnetic field
%K robust estimate
%K orthogonal least square
%K multi-surface function
%K node<br>局域海洋地磁场模型
%K 抗差估计
%K 正交最小二乘原理
%K 多面函数
%K 节点
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=DA72A78627FE64EAA572951EA05D274A&jid=73A1A428591E600EF664B596512A2997&aid=B39D47F72CB13A76FBE620D584C7392F&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=38B194292C032A66&sid=7AA74D31F1FF2DCE&eid=CFAC5CB624A41AFD&journal_id=1671-5942&journal_name=大地测量与地球动力学&referenced_num=0&reference_num=6