基于实测地磁数据仿真的插值算法适构性分析  

Analysis of interpolation suitability of algorithm based on simulation of the measured geomagnetic data

作　　者：于运治[1] 姜璐[1] 田茂均 

机构地区：[1]海军潜艇学院,山东青岛266044

出　　处：《舰船科学技术》2014年第5期130-134,共5页Ship Science and Technology

摘　　要：地磁数据具有结构性质多样性,使得对于地磁数据插值的研究在不同区域往往得到不同结论。针对此情况,本文提出插值算法的适构性概念,并建立基于统计学指标的算法适构性评价体系。根据实测地磁数据变化剧烈程度的不同划分5个实验区域;通过等间隔采样的方式,从原始数据中抽取大间隔数据作为实验数据,然后算法插值得到估值数据;围绕原始数据与估值数据残差的集中趋势、离散程度和分布形态等因子,建立基于统计学指标的算法评价体系;仿真验证3种较优插值算法的效果。通过对仿真结果的定量分析,得出了3种插值算法的适构性结论。The structural properties diversity of the geomagnetic data,make for geomagnetic data interpolation research in different areas often get different conclusions.In view of this situation,this paper puts forward the optimal structure concept of the interpolation algorithm,and to establish the interpolation suitability of algorithm evaluation system based on the statistical indicators.Firstly,the paper based on different change intensity of the geomagnetic data has division of the five experimental area; Secondly,through the way such as sampling interval,extract big interval data from the original data as experimental data,and use the interpolation algorithm gets valuation data; Thirdly,around the original data and valuation data residual concentration trend,discrete degree and distribution form factors,this paper build the interpolation suitability of algorithm evaluation system based on statistics index; Finally,take advantage of simulation results show the effect of three better interpolation algorithm.Based on the quantitative analysis of the simulation results,it is concluded that interpolation suitability of algorithm conclusion of the three kinds of interpolation algorithm.

关 键 词：地磁图 插值算法 统计学指标 

分 类 号：U666.1[交通运输工程—船舶及航道工程]