| 解析法与随机法联合定量反演位场 |
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| 引用本文： | 陈玉东.解析法与随机法联合定量反演位场[J].物探与化探,2002,26(6):470-474,482. |
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| 作者姓名： | 陈玉东 |
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| 作者单位： | 中国地质大学,北京,100083 |
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| 摘 要： | 位场向下在不同深度上解析延拓的值构成延拓场,可对延拓场进行主成份分析。理论模型计算表明:在没有任何先验信息的条件下,可以用延拓场分解的能量权值异常或延拓场相关矩阵的最大特征值,判断位场场源所在位置,从而能确定地质体的埋深。这种将位场解析延拓的确定信号分析法与主成份分析的随机信号分析法有机联合,为解决地球物理位场反演问题提供了一种途径。
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| 关 键 词： | 位场 解析延拓 主成份分析 |
| 文章编号： | 1000-8918(2002)06-0470-05 |
| 收稿时间： | 2002-03-10 |
THE COMBINATION OF ANALYTICAL METHOD AND STOCHASTIC METHOD FOR QUANTITATIVE INVERSION OF POTENTIAL FIELD |
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| Institution: | China University of Geosciences, Beijing 100083, China |
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| Abstract: | The values of analytical continuation at different depths from the potential field downward constitute the continuation field, on which the principal component analysis is made. The theoretical model calculation shows that, under the condition without any priori information, the energy weight value resolved from the continuation field or the maximum characteristic value of the matrix related to the continuation field can be used to judge the position of the potential field source, thus determining the burial depth of the geological body. Such organic combination of the determined signal analytical method for potential field analytical continuation with the stochastic signal analytical method for principal component analysis provides a new channel for the inversion of geophysical potential field. |
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| Keywords: | potential field analytical continuation principal component analysis |
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