| l_p范数波阻抗约束反演 |
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| 引用本文： | 张厚柱,杨慧珠. l_p范数波阻抗约束反演[J]. 应用基础与工程科学学报, 1996, 0(4) |
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| 作者姓名： | 张厚柱 杨慧珠 |
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| 作者单位： | 清华大学工程力学系 |
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| 摘 要： | 以模型为基础的反演技术较直接，对地震资料进行反演有较高的分辨率，它将地震资料，测井资料和其他已知信息有机地统一在一起，将多解性降低到最小程度．ｌｐ范数反演较最小二乘反演可更加有效地消除噪音特别是较大偏差数据的影响．本文采用有约束的共轭梯度法求解ｌｐ范数的最优化问题．测井资料在本文的算例和实际资料的反演中得到充分的利用，主要表现在子波反演，初值估计和速度约束上．
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| 关 键 词： | 波阻抗反演，共轭梯度法，测井速度 |
Constrained Impedance Inversion Based on l_p Norm |
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| ZHANG Houzhu, YANG Huizhu. Constrained Impedance Inversion Based on l_p Norm[J]. Journal of Basic Science and Engineering, 1996, 0(4) |
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| Authors: | ZHANG Houzhu YANG Huizhu |
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| Abstract: | Inversion technique based on models has higher resolution than that which inverts the seismic data directly. It connects the seismic data, logging parametersand other information and reduces the property of multi-solution to the least extent. inversion techique based on lp norm can eliminate the influence of noise moreeffectively than Least-Square inversion. In this paper, we solve the lp norm optimization problems using a constrained conjugate gradient method. Logging information are used in wavelet inversion, initial value estimation and impedance constraints. |
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| Keywords: | impedance inversion conjugate gradient method logging velocity |
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