【摘要】 针对地磁匹配制导基准图制备的需求,采用Surfer8.0软件提供的12种插值算法对选定区域离散总磁场强度测量值进行了网格化处理,生成所需的地磁基准图;提出了适用于地磁匹配制导的数据网格化有效性评价标准,并依据所提出的评价标准对使用12种方法所生成的地磁基准图进行了评价。结论表明:在选定区域,克里格法和径向基函数法生成网格化数据指标较好,这两种方法可以生成精度较高的网格化数据。更多还原

【Abstract】 According to the demand of geomagnetic reference maps for geomagnetism matching guidance,some total geomagnetic intensity measurements on several discrete spots in a chosen area are processed with 12 interpolate algorithms provided by Surfer 8.0,and the required reference maps are generated.A validity evaluation criterion of geomagnetic reference map grid data used for geomagnetism matching guidance is introduced and the detail description is presented.According to the criterion,the reference maps generated with the 12 interpolate algorithms are evaluated.Results show that in the chosen area,the performance of the data generated by Kriging method and the radial basis function method are better.Both methods can generate accurate grid data.更多还原