摘要
基于多项式模型的地磁日变改正值幅值关系分析,旨在提供一种站间日变数据互补方法,通过数据的内插和外推,采用加权平均值算法求取插补时段的最优改正数。算例分析表明,利用站间幅值关系重建日变改正值可以达到相当高的精度。
Analyzing the relation of amplitude value between the magnetic diurnal variations based on polynomial model is to provide an interpolation method of correcting diurnal variations of those magnetic base stations, which is using weighted mean algorithm to calculate the optimization correction data through interpolation and extrapolation. Example shows that high measurement precision can be achieved through rebuilding diurnal variations with this method.
出处
《海洋测绘》
2006年第6期6-9,共4页
Hydrographic Surveying and Charting
基金
国家420专项科研课题(4200205)
关键词
海洋磁力测量
内插
外推
加权
hydrographic magnetic survey
interpolation
extrapolation
weighted
