| 基于自适应收缩可行域的遗传算法反演TEM导电薄层 |
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| 作者姓名： | Li Xiu Xue Guoqiang Song Jianping Guo Wenbo Wu Junjie Shen Meifang |
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| 作者单位： | [1]School of Electronic ＆ Information Engineering, Xi An Jiaotong University, Xi An, 710049 [2]School of Geology ＆ Survey Engineering, Chang An University, Xi An, 710054 |
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| 摘 要： | 将自适应收缩可行域的遗传算法与视纵向电 导微分成像法相结合,反演瞬变电磁测深中的导电 薄层,计算结果证明:该算法通过对可行域的自适 应收缩,加快了计算速度、提高了计算精度;并在 一定程度上克服了瞬变电磁测深的等值性,缩小了 等值范围。通过对导电薄层模型的模拟计算和实例 分析,并与常规反演曲线进行对比,使用本法反演 成像的结果,明显地显示出导电薄层的存在。
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| 关 键 词： | 反演法 电磁勘探 薄层 遗传算法 |
| 收稿时间： | 2005-03-14 |
| 修稿时间： | 2005-03-142005-10-17 |
Application of the adaptive shrinkage genetic algorithm in the feasible region to TEM conductive thin layer inversion |
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| Li Xiu Xue Guoqiang Song Jianping Guo Wenbo Wu Junjie Shen Meifang.Application of the adaptive shrinkage genetic algorithm in the feasible region to TEM conductive thin layer inversion[J].Applied Geophysics,2005,2(4):204-210. |
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| Authors: | Li Xiu Xue Guoqiang Song Jianping Guo Wenbo Wu Junjie Shen Meifang |
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| Institution: | (1) School of Electronic & Information Engineering, Xi An Jiaotong University, 710049 Xi An;(2) School of Geology & Survey Engineering, Chang An University, 710054 Xi An |
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| Abstract: | Combining the adaptive shrinkage genetic algorithm in the feasible region with the imaging of apparent vertical conductance differential, we have inverted the TEM conductive thin layer. The result of the inversion demonstrates that by adaptive shrinkage in the feasible region, the calculation speed accelerates and the calculation precision improves. To a certain extent, in this method we surmount the transient electromagnetic sounding equivalence and reduced equivalence scope. Comparison of the inverted result with the forward curve clearly shows that we can image the conductive thin layer. |
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| Keywords: | transient electromagnetic method genetic algorithm inversion apparent longitudinal conductance and conductive thin layer |
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