大地电磁法三维交错采样有限差分数值模拟

被引：103

作者：

谭捍东

余钦范

John Booker

魏文博

机构：

[1] 中国地质大学地球物理与信息技术学院

[2] University of Washington

[3] Seattle

来源：

地球物理学报 | 2003年 / 05期

关键词：

大地电磁法; 交错采样有限差分法; 三维正演; 边界条件; 双共轭梯度稳定解法;

D O I：

暂无

中图分类号：

P631.325 [];

学科分类号：

摘要：

系统地论述了大地电磁三维交错采样有限差分数值模拟算法实现过程中交错网格剖分、积分公式离散化、边界条件、方程组求解、三维张量阻抗的计算等内容 .由于提出了简洁的边界条件 ,采用了解大型系数矩阵方程组的双共轭梯度稳定解法 ,所实现的三维交错采样有限差分数值模拟算法具有迭代收敛稳定、计算精度高、速度快等特点 .通过两个理论模型的计算结果检验了算法的正确性和计算精度 .所实现的三维交错采样有限差分数值模拟算法为研究三维反演问题奠定了基础 .

引用

页码：705 / 711

页数：7

共 10 条

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