| 基于差分进化的大地电磁反演 |
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| 引用本文： | 熊杰,孟小红,刘彩云,彭淼.基于差分进化的大地电磁反演[J].物探与化探,2012,36(3):448-451. |
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| 作者姓名： | 熊杰 孟小红 刘彩云 彭淼 |
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| 作者单位： | 1. 中国地质大学地球物理与信息技术学院,北京100083;长江大学电子信息学院,湖北荆州 434023
2. 中国地质大学地球物理与信息技术学院,北京,100083 |
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| 基金项目： | 国家自然科学基金项目(41074095);国家专项课题(SinoProbe-01-05);中央高校基本科研业务费专项资金项目(2011PY0185) |
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| 摘 要： | 针对大地电磁线性迭代反演依赖初始模型,易陷入局部最优解的特点,设计一种基于差异进化的非线性反演方法。利用该方法对大地电磁一维层状介质G、H、HA型地电模型进行反演研究,在无噪声情况下反演结果和模型一致;在加入10%和20%噪声后,反演仍取得良好效果。数值实验结果表明,该反演方法不依赖于初始模型,具有较好的全局优化能力和抗噪声能力,能有效反演大地电磁数据。
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| 关 键 词： | 差分进化 大地电磁 非线性反演 抗噪性 |
MAGNETOTELLURIC INVERSION BASED ON DIFFERENTIAL EVOLUTION |
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| XIONG Jie
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MENG Xiao-hong
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LIU Cai-yun
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PENG Miao.MAGNETOTELLURIC INVERSION BASED ON DIFFERENTIAL EVOLUTION[J].Geophysical and Geochemical Exploration,2012,36(3):448-451. |
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| Authors: | XIONG Jie MENG Xiao-hong LIU Cai-yun PENG Miao |
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| Institution: | 1(1.School of Geophysics and Information Technology,China University of Geosciences,Beijing 100083,China;2.Electronics and Information School of Yangtze University,Jingzhou 434023,China) |
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| Abstract: | This paper proposes a differential evolution inversion algorithm in order to avoid the dependency on the initial model and the local solution.Applying this algorithm to magnetotelluric inversion on 1D layered geo-electrical models of G,H and HA yields consistent results with the models in the noise-free case.When noises of 10% and 20% are added to the models,the results of inversions remain fairly good.Numerical experiment results demonstrate that this differential evolution inversion algorithm is independent of initial models,capable of global optimization and anti-noise,and makes MT data inversion more effective. |
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| Keywords: | differential evolution magnetotelluric nonlinear inversion anti-noise performance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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