| 基于多项式的海洋局域地磁场建模方法研究 |
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| 引用本文： | 赵建虎,王胜平,刘辉,柯灏. 基于多项式的海洋局域地磁场建模方法研究[J]. 测绘科学, 2009, 34(6): 20-22 |
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| 作者姓名： | 赵建虎 王胜平 刘辉 柯灏 |
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| 作者单位： | 武汉大学测绘学院,武汉,430079;武汉大学测绘学院,武汉,430079;武汉大学测绘学院,武汉,430079;武汉大学测绘学院,武汉,430079 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 在分析海洋地磁场建模意义的基础上,研究了基于泰勒多项式的地磁场建模方法,并对建模中模型中心的选择、模型截断阶数的确定、参与建模的数据的代表性和密度等关键问题对模型的阶数和精度的影响进行了深入研究,并给出了一些有益的结论和建议。将该方法应用于我国某海区的地磁场建模中,取得了理想的结果。
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| 关 键 词： | 地磁场 地磁场建模 泰勒多项式 模型截止阶数 模型精度 |
Geomagnetic field modelling for local marine area based on Tayler polynomial |
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| ZHAO Jian-hu,WANG Sheng-ping,LIU Hui,KE Hao. Geomagnetic field modelling for local marine area based on Tayler polynomial[J]. Science of Surveying and Mapping, 2009, 34(6): 20-22 |
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| Authors: | ZHAO Jian-hu WANG Sheng-ping LIU Hui KE Hao |
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| Affiliation: | ZHAO Jian-hu,WANG Sheng-ping,LIU Hui,KE Hao(School of geodesy , Geomatics,Wuhan University,Wuhan 430079,China) |
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| Abstract: | The method of geomagnetic field modelling based on Tayler polynomial was studied by analyzing its significance.Some key problems,such as the determination of appropriate model order,the relation between representative geomagnetic data and model order and accuracy,the relation between model order and accuracy and geomagnetic data resolution and choice of the centre of geomagnetic filed model,were studied.Some useful suggestions were presented.Practical application indicates that this method is feasible and r... |
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| Keywords: | geomagnetic field construction of geomagnetic field model Tayler polynomial order of polynomial model accuracy |
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