| 解释重磁资料中最优化选择法的若干问题 |
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| 引用本文： | 周熙襄,钟本善,冯敬英.解释重磁资料中最优化选择法的若干问题[J].地球物理学报,1980,23(1):66-83. |
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| 作者姓名： | 周熙襄 钟本善 冯敬英 |
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| 作者单位： | 成都地质学院 |
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| 摘 要： | 本文中我们将拟牛顿法应用到磁力、重力资料的自动解释中来,通过计算对比说明,在收敛的稳定性上拟牛顿法比常用的阻尼最小二乘法大为优越。文中又讨论了最优化选择法的收敛性、多解性、模型体的选择、参量的选择和约束,以及解释三个矿区磁异常的实例。
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| 关 键 词： | 最优化选择 叠代过程 阻尼最小二乘法 重磁资料 多解性 拟牛顿法 长方体 收敛速度 磁异常 组合模型 |
| 收稿时间： | 1978-03-21 |
CERTAIN PROBLEMS OF THE CURVE-MATCHING OPTIMIZATION METHOD IN THE INTERPRETATION OF MAGNETIC AND GRAVITY DATA |
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| Zhou Xi-xiang,Zhong Ben-shan,Feng Jing-ying.CERTAIN PROBLEMS OF THE CURVE-MATCHING OPTIMIZATION METHOD IN THE INTERPRETATION OF MAGNETIC AND GRAVITY DATA[J].Chinese Journal of Geophysics,1980,23(1):66-83. |
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| Authors: | Zhou Xi-xiang Zhong Ben-shan Feng Jing-ying |
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| Institution: | Chengtu Geological Institute |
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| Abstract: | In this paper, we applied the Quasi-Newton method of non-linear optimization to the automatic interpretation of magnetic and gravity anomalies. A comparison of the results of computations indicates that Quasi-Newton method is more efficient than damped least squares （Marquardt's） method in stability of convergence. We also dis-cussed convergence, ambiguity, choice of models and their parameters and constraints of the curve-matching optimization method. Three examples of interpertation of magne-tic anomalies by the optimization method are given. |
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