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,极大似然反褶积子波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。
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.
出处
《物探化探计算技术》
CAS
CSCD
2004年第1期9-12,共4页
Computing Techniques For Geophysical and Geochemical Exploration
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
maximum likelihood deconvolution
seismic wavelet
robustness
wavelet parameter
statistic parameter
