| 预条件共轭梯度反褶积及其应用 |
| |
| 引用本文： | 葸晓宇,刘洪.预条件共轭梯度反褶积及其应用[J].应用地球物理,2006,3(3):156-162. |
| |
| 作者姓名： | 葸晓宇 刘洪 |
| |
| 作者单位： | 中国科学院地质与地球物理研究所 北京100029 |
| |
| 基金项目： | This research is sponsored by Key Project of Knowledge Innovation of chinese Academy of Sciences (No. KZCX1-SW-18) and the Precative Project of the Research Institute of Exploration and Development of Daqing Oilfield Co., Ltd. |
| |
| 摘 要： | 预条件共轭梯度反褶积方法是结合稀疏反褶积的实现,运用优化的预条件共轭梯度法,完成反射系数的反演。用该方法处理地震资料时可提高资料频率,展宽有效频率宽度。但由于地震信号具有时变性,因此本文将该反褶积过程中的子波用多尺度时变子波代替。由数值算例可以看出,该方法可取得较好的实用效果。
|
| 关 键 词： | 预条件共轭梯度 反褶积 多尺度时变子波 高频恢复 |
| 收稿时间： | 2006-05-11 |
| 修稿时间： | 2006-05-112006-08-14 |
The preconditioned conjugate gradient deconvolution method and its application |
| |
| Xi Xiaoyu,Liu Hong.The preconditioned conjugate gradient deconvolution method and its application[J].Applied Geophysics,2006,3(3):156-162. |
| |
| Authors: | Xi Xiaoyu Liu Hong |
| |
| Institution: | (1) The Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China |
| |
| Abstract: | The preconditioned conjugate gradient deconvolution method combines the realization of sparse deconvolution and the optimal preconditioned conjugate gradient method to invert to reflection coefficients. This method can enhance the frequency of seismic data processing and widen the valid frequency bandwidth. Considering the time-varying nature of seismic signals, we replace the constant wavelet with a multi-scale time-varying wavelet during deconvolution. Numerical tests show that this method can obtain good application results. |
| |
| Keywords: | Preconditioned conjugate gradient deconvolution multi-scale time-varying wavelet and high frequency restoration |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
