| 应用改进的遗传算法反演多层密度界面 |
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| 引用本文： | 陈军,陈高.应用改进的遗传算法反演多层密度界面[J].地球科学,2000,25(6):651-655. |
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| 作者姓名： | 陈军 陈高 |
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| 作者单位： | 1.同济大学海洋地质教育部重点实验室, 上海 200092 |
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| 基金项目： | 国家自然科学基金项目!(No .49894190 )，国家海洋局海底科学重点实验室基金项目!(No .980 2 ) |
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| 摘 要： | 利用具有全局优化功能的遗传算法直接反演多层密度界面.首先根据重力反演的特点对遗传算法进行改进, 使遗传算法基因交换过程中交换位置的确定同重力异常的拟合情况相结合, 给出适合于重力反演特点的遗传算法.然后利用改进后的遗传算法直接反演多层密度界面.理论模型和实际剖面的计算表明改进是有效的.
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| 关 键 词： | 遗传算法 密度界面 反演 |
| 收稿时间： | 2000-06-26 |
APPLICATION OF IMPROVED GENETIC ALGORITHM TO INVERSION OF MULTI-LAYER DENSITY INTERFACE |
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| Chen Jun,Wang Jialin,Wu Jiansheng,Chen Bing,Chen Gao,Chen Yongjie.APPLICATION OF IMPROVED GENETIC ALGORITHM TO INVERSION OF MULTI-LAYER DENSITY INTERFACE[J].Earth Science-Journal of China University of Geosciences,2000,25(6):651-655. |
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| Authors: | Chen Jun Wang Jialin Wu Jiansheng Chen Bing Chen Gao Chen Yongjie |
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| Affiliation: | Chen Jun 1 Wang Jialin 1 Wu Jiansheng 1 Chen Bing 1 Chen Gao 2 Chen Yongjie 2 |
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| Abstract: | The purpose of this paper is to inverse directly the multi layer density interface by means of genetic algorithms, one of the global optimization methods. At first, this paper presents the improvement of the genetic algorithm in line with the gravity inversion for the combination of the determination of the exchange positions with the fitting of the gravity anomaly during the exchange of the genes in the genetic algorithm. In this case, the genetic algorithm appropriate to the gravity inversion can be obtained. Then, this paper presents the direct inversion of the multi layer density interface using this improved GA. The results of the theoretical model and field section show that this kind of improvement is effective. |
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| Keywords: | genetic algorithm density interface inversion |
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