| 基于波场外推压制水层多次波 |
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| 引用本文： | 章佩凳,高静怀,朱振宇.基于波场外推压制水层多次波[J].地球物理学进展,2009,24(2):541-550. |
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| 作者姓名： | 章佩凳 高静怀 朱振宇 |
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| 作者单位： | 1. 西安交通大学波动与信息研究所,西安,710049
2. 中海石油研究中心技术研究部,北京,100027 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 重点讨论了基于克希霍夫积分的波场外推方法预测水层多次波的方法原理及具体的数值实现.自适应减法是波动方程方法压制多次波的另一个重要方面,考虑到Monk提出的带约束的互均衡化算法在复杂模型情况下压制效果不是很理想,本文对其算法进行了改进,提出了基于矩形窗和海宁(hanning)窗的分段匹配算法,模型算例的处理结果表明,改进后的算法具有一定的优越性.
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| 关 键 词： | 水层多次波 波场外推 自适应减法 带约束互均衡化 分段匹配 |
| 收稿时间： | 2008-5-22 |
| 修稿时间： | 2008-9-27 |
Water layer multiple suppresions based on wave equation extrapolation |
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| ZHANG Pei-deng,GAO Jing-huai,ZHU Zhen-yu.Water layer multiple suppresions based on wave equation extrapolation[J].Progress in Geophysics,2009,24(2):541-550. |
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| Authors: | ZHANG Pei-deng GAO Jing-huai ZHU Zhen-yu |
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| Abstract: | We focus on discussing the principle of predicting water layer multiple using the wave-equation extrapolation method, which is based on Kirchhoff integral, as well as the approach of the numerical realization. An important part in multiple suppression is the adaptive subtract algorithm. Considering the result of the constrained cross-equalization algorithm(CCA) is not so good, we improved it by matching the trace with rectangle or hanning windows. We process some synthetic data using CCA and the improved algorithm, respectively. Comparison of the results of the two methods shows that windows matching method is better than CCA to some degree. |
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| Keywords: | water layer multiple wave-equation extrapolation adaptive subtract algorithm constrained cross-equalization segment matching |
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