| 考虑关断时间效应的瞬变电磁一维反演 |
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| 引用本文： | 杨云见,王绪本,何展翔.考虑关断时间效应的瞬变电磁一维反演[J].物探与化探,2005,29(3):234-236. |
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| 作者姓名： | 杨云见 王绪本 何展翔 |
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| 作者单位： | 1. 成都理工大学,四川,成都,610059
2. 东方地球物理公司,河北,涿州,072751 |
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| 摘 要： | 为克服因关断时间校正而带来的误差,尝试直接对包含关断时间效应的瞬变电磁资料进行反演。正演采用将斜阶跃波离散为多个阶跃波之和的方法,反演采用经典的马奎特法。对模型试算的结果表明,采用该方法直接对斜阶跃响应进行反演,结果比较理想,计算速度也可以接受。
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| 关 键 词： | 瞬变电磁法 关断时间 一维反演 |
| 文章编号： | 1000-8918(2005)03-0234-03 |
| 收稿时间： | 2004-12-05 |
AN ANALYSIS OF GOLD METALLOGENIC PROSPECTS OF YUNSHAN ANAOMALY AREA |
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| YANG Yun-jian,WANG Xu-Ben,He Zhan-Xiang.AN ANALYSIS OF GOLD METALLOGENIC PROSPECTS OF YUNSHAN ANAOMALY AREA[J].Geophysical and Geochemical Exploration,2005,29(3):234-236. |
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| Authors: | YANG Yun-jian WANG Xu-Ben He Zhan-Xiang |
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| Institution: | YANG Yun-jian1,WANG Xu-ben1,HE Zhan-xiang2 |
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| Abstract: | This paper tries to conduct a direct inversion of the transient electromagnetic data, in which the ramp time effect is considered so that error correction of ramp time effect can be avoided. Ramp current is replaced by a series of transient currents during the forward procedure. Considering the main purpose of this paper, the authors have chosen a typical inversion method Marquardt. The results obtained are coincident well with the theoretical model, and the cost of time is acceptable. |
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| Keywords: | transient electromagnetic method ramp time 1D inversion |
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