| 带地形的可控源音频大地电磁法二维正演 |
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| 引用本文： | 张斌,谭捍东.带地形的可控源音频大地电磁法二维正演[J].物探与化探,2014(1):151-156. |
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| 作者姓名： | 张斌 谭捍东 |
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| 作者单位： | [1]有色金属矿产地质调查中心,北京100012 [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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| 摘 要： | 利用二次场算法研究了可控源音频大地电磁法二维正演问题。采用有限单元法进行正演模拟,将矩阵压缩存储和共轭梯度解方程方法应用到正演算法中,加快了正演算法的速度,并且将地形因素考虑到正演算法中。通过不同的模型验算,检验了算法的精度。
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| 关 键 词： | 可控源音频大地电磁法 .维正演 地形因素 有限元单元法 |
THE TWO-DIMENSIONAL CSAMT MODELING WITH TOPOGRAPHY |
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| ZHANG Bin,TAN Han-dong.THE TWO-DIMENSIONAL CSAMT MODELING WITH TOPOGRAPHY[J].Geophysical and Geochemical Exploration,2014(1):151-156. |
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| Authors: | ZHANG Bin TAN Han-dong |
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| Institution: | 2 ( 1. China Non-ferrous Metals Resources Geological Survey, Beijing 100012, China; 2. School of Geophysics and Information Technology, China Unifier sity of Geosciem：es, Beijing 100083, China) |
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| Abstract: | In this paper, secondary field algorithm was used to study CSAMT two-dimensional forward problem. Forward modeling used finite-element method, and it employs compressed storage and conjugate gradient technique to accelerate the speed of forward algo-rithm. In addition, topography was added to the forward algorithm. Finally, the algorithm was tested by means of a synthetic model. The test shows promising results. |
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| Keywords: | CSAMT 2 5D forward topography factor finite element method |
| 本文献已被 CNKI 维普 等数据库收录！ |
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