| 基于遗传算法和统计学的电阻率测深二维反演研究 |
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| 引用本文： | 程勃,底青云. 基于遗传算法和统计学的电阻率测深二维反演研究[J]. 地球物理学进展, 2012, 27(2): 788-795 |
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| 作者姓名： | 程勃 底青云 |
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| 作者单位： | 1. 中国科学院地质与地球物理研究所中国科学院工程地质力学重点实验室,北京 100029;中国科学院研究生院,北京 100049
2. 中国科学院地质与地球物理研究所中国科学院工程地质力学重点实验室,北京,100029 |
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| 基金项目： | 国土资源部深部探测技术与实验研究专项 |
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| 摘 要： | 本文介绍了一种以遗传算法和统计学为基础的反演方法,该方法利用一维反演结果的统计学特征确定地层电性结构并设计初始模型,使用遗传算法修改模型,经过二维有限单元法正演达到拟合误差最小,从而完成电阻率测深数据的二维反演.这个方法的优点在于不需要解大型线性方程组,降低计算量,先判断地层电性结构,反演后给出用地电断面表示的直观的解释结果.理论模型试算和模型实验证明该方法效果较好.
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| 关 键 词： | 电阻率测深 二维反演 遗传算法 统计学 |
2D inversion of resistivity sounding base on GA and statistic method |
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| CHENG Bo , DI Qing-yun. 2D inversion of resistivity sounding base on GA and statistic method[J]. Progress in Geophysics, 2012, 27(2): 788-795 |
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| Authors: | CHENG Bo DI Qing-yun |
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| Affiliation: | 1(1.Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics, Chinese Academy of Sciences,Beijing 100029,China; 2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | In this paper,a new inversion method for RES is proposed.The inversion would be carried out in two steps.The first step is to judge the electoral structure by statistic.The second is to modify the parameters by genetic algorithm.The advantage of this method is that there is no need for linear equations solving,so the calculation amount is low.And the inversion result is visual.The method has been proved to be effective by theoretical and experimental models. |
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| Keywords: | resistivity sounding 2D inversion GA statistic |
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