摘要
地磁场模型是地磁场的数学表达式,国内外已有多种建立地磁场模型的方法,对于局部地磁场模型来说,应用比较多的是多项式方法和曲面样条函数方法。讨论了基于曲面样条函数建立局部地磁场模型的原理和方法,并在实测数据基础上对模型的精度进行了验证。
The geomagnetic filed model is mathematic expression of geomagnetic field. There are many methods to establish the geomagnetic field model. The multinomial and surface spline function are appropriate to local geomagnetic field. The principle and establishing method of surface spline function is discussed in the paper and the model＇ s precision is proved.
出处
《海洋测绘》
2009年第3期28-30,共3页
Hydrographic Surveying and Charting
关键词
地磁场
曲面插值
样条函数
局部地磁场模型
geomagnetic field
surface interpolating
spline function
local geomagnetic field
