| 子波估计及极大似然反褶积方法稳健性讨论 |
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| 引用本文： | 刘洪林,胡建,王金山,朱秋影.子波估计及极大似然反褶积方法稳健性讨论[J].物探化探计算技术,2004,26(1):9-12. |
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| 作者姓名： | 刘洪林 胡建 王金山 朱秋影 |
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| 作者单位： | 1. 大庆石油学院,大庆,163318
2. 大庆油田有限责任公司,勘探开发研究院,大庆,163318 |
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| 摘 要： | 利用极大似然反褶积提取鲁棒性地震子波的方法进行了研究，并讨论了极大似然反褶积的稳健性。理论分析表明，在理想条件下极大似然反褶积是无偏估计，而且还是一致估计，这一结论可以由所提取的地震子波得到验证。实际地震资料的处理结果分析表明，极大似然反褶积具有很好的稳健性。应当指出，为保证地震子波的鲁棒性，极大似然反褶积子渡时窗应尽量满足统计条件，以提高极大似然反褶积的稳健性。
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| 关 键 词： | 子波估计 极大似然反褶积 稳健性 统计参数 鲁棒性地震子波 |
| 文章编号： | 1001-1749(2004)01-0009-04 |
THE DISCUSSION OF WAVELET ESTIMATION AND ROBUSTNESS OF MAXIMUM LIKELIHOOD DECONVOLUTION METHOD |
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| LIU Hong-Lin,HU Jian,WANG Jin-shan,ZHU Qiu-ying.THE DISCUSSION OF WAVELET ESTIMATION AND ROBUSTNESS OF MAXIMUM LIKELIHOOD DECONVOLUTION METHOD[J].Computing Techniques For Geophysical and Geochemical Exploration,2004,26(1):9-12. |
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| Authors: | LIU Hong-Lin HU Jian WANG Jin-shan ZHU Qiu-ying |
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| Institution: | LIU Hong-Lin~1,HU Jian~1,WANG Jin-shan~2,ZHU Qiu-ying~1 |
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| Abstract: | The method of the robustness seismic wavelet estimation using the maximum likelihood deconvolution are discussed in the paper. Theory analysis shows that maximum likelihood deconvolution is an unbiased and unique estimation under the desire condition and this conclusion can be valid from the extracted seismic wavelet. Based on the analysis of the actual data processing result, it can be concluded that maximum likelihood deconvolution has a very strong robust characteristic and also pointed out the time windows for wavelet estimation should meet the statistical hypothesis as possible as they could so as to enhance the robust characteristic of estimated seismic wavelet. |
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| Keywords: | maximum likelihood deconvolution seismic wavelet robustness wavelet parameter statistic parameter |
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