| 划分重力区域异常与局部异常的变阶滑动趋势分析法 |
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| 引用本文： | 李九亭.划分重力区域异常与局部异常的变阶滑动趋势分析法[J].物探化探计算技术,1998,20(1):53-61. |
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| 作者姓名： | 李九亭 |
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| 作者单位： | 地矿部区重力测量中心 |
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| 摘 要： | 本文在分析一般趋势分析缺陷的基础上，提出了变阶滑动趋势分析法，并用正交变换代替趋势分析中的解线性方程组，避免了线性方程组病态而造成的异常失真。最后用理论模型和实际资料处理结果说明了变阶滑动趋势分析的优点。
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| 关 键 词： | 变阶滑动趋势分析 正交多项式 划分 区域重力异常 局部重力异常 |
VARIABLE ORDER SLIDING TREND ANALYSIS METHOD USED IN THE DIVISION OF REGIONAL AND LOCAL GRAVITY ANOMALIES |
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| Li Jiuliang.VARIABLE ORDER SLIDING TREND ANALYSIS METHOD USED IN THE DIVISION OF REGIONAL AND LOCAL GRAVITY ANOMALIES[J].Computing Techniques For Geophysical and Geochemical Exploration,1998,20(1):53-61. |
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| Authors: | Li Jiuliang |
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| Institution: | The Methodological and Technical Center of Regional Gravity Survey |
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| Abstract: | Based on analyzing the defect of ordinary trend analysis, a new method, variable order sliding trend analysis, is presented here. Instead of resolving linear equations in ordinary trend analysis, this method uses orthogonal transformation so that some distorted anomalies resulted from ill conditioned system of equations can be avoided. Finally, the advantage of this method is supported by the theoretical model calculation and field data processing results. |
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| Keywords: | variable order sliding trend analysis orthogonal polynomial division regional gravity anomaly local gravity anomaly |
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