| 跨孔电磁波层析处理中阻尼系数的确定与应用 |
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| 引用本文： | 罗德建,高文利.跨孔电磁波层析处理中阻尼系数的确定与应用[J].物探化探计算技术,2007(Z1). |
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| 作者姓名： | 罗德建 高文利 |
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| 作者单位： | 中国地质科学院物化探研究所 中国地质科学院物化探研究所 河北廊坊 河北廊坊 |
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| 摘 要： | 代数重建技术ART(Algebra Reconstruction Technology)是一种层析处理数学方法,具有计算速度快、图形简洁直观等优点,被应用于电磁波CT方法的数据处理中。但该处理方法易发散,结果难以控制,因此它的敛散性成为提高其应用的主要问题。这里通过在ART算法中加入阻尼系数的做法保证了迭代的收敛,并对阻尼系数的取值范围进行了探讨,成功地用于电磁波数据处理中。
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| 关 键 词： | 电磁波CT法 代数重建技术 阻尼系数 层析 |
DAMPING COEFFECIENT IN DATA PROCESSING FOR CROSS BOREHOLE EM WAVE TOMOGRAPHY-DETERMINATION AND APPLICATION |
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| LUO De-jian,GAO Wen-li.DAMPING COEFFECIENT IN DATA PROCESSING FOR CROSS BOREHOLE EM WAVE TOMOGRAPHY-DETERMINATION AND APPLICATION[J].Computing Techniques For Geophysical and Geochemical Exploration,2007(Z1). |
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| Authors: | LUO De-jian GAO Wen-li |
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| Abstract: | The algebra reconstruction technique (ART) is a tomographic data processing method, which is characterized by speedy calculation and forthright imaging and thus adopted in the cross borehole EM wave tomographic survey. However, it is easy to be divergent, resulting in results uncontrollable. To solve this problem, a damping coefficient is added in the calculation to ensure its convergence. The determination of the damping coefficient is discussed and good results by adopting it in the calculation are presented in the paper. |
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| Keywords: | cross borehole EM wave tomographic method algebra reconstruction technique damping coefficient computerized tomography |
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