| 切比雪夫伪谱法模拟地震波场 |
| |
| 引用本文： | 刘鲁波,陈晓非,王彦宾.切比雪夫伪谱法模拟地震波场[J].西北地震学报,2007,29(1):18-25. |
| |
| 作者姓名： | 刘鲁波 陈晓非 王彦宾 |
| |
| 作者单位： | 北京大学地球与空间科学学院地球物理学系,北京,100871 |
| |
| 摘 要： | 介绍了切比雪夫伪谱法以及快速傅立叶算法在其中的应用,并用切比雪夫伪谱法模拟二维有限区域弹性介质地震波场。分别计算了兰姆问题,均匀介质中心爆破源问题,介质内部的速度异常体问题以及各种分界面情况下地震首波传播问题。
|
| 关 键 词： | 切比雪夫伪谱法 傅立叶伪谱法 快速傅立叶算法 地震波场 首波 |
| 文章编号： | 1000-0844（2007）01-0018-08 |
| 修稿时间： | 2006-05-12 |
Chebyshev Pseudospectral Method for Seismic Wavefield Modeling |
| |
| LIU?Lu-bo,CHEN?Xiao-fei and WANG?Yan-bin.Chebyshev Pseudospectral Method for Seismic Wavefield Modeling[J].Northwestern Seismological Journal,2007,29(1):18-25. |
| |
| Authors: | LIU?Lu-bo CHEN?Xiao-fei and WANG?Yan-bin |
| |
| Institution: | Department of Geophysics ,School of Earth and Space Sciences ,Beijing University, Beijing 100871 ,China |
| |
| Abstract: | The pseudospectral methods,especial Fourier method and Chebyshev method are introduced first.Then the first order 2-D elastodynamic seismic wavefield equation based on velocity-stress by the Chebyshev pseudospectral method is solved,and in the compatation the Lame problem,the problem of demolition source in center of homogeneous media,the velocity anomaly intermedia,and the more important problem,headwave propagation in multi-layered media are simulated.At last,we try to get a similar pseudospectral method to Chebyshev method. |
| |
| Keywords: | Chebyshev pseudospectral method Fourier pseudospectral method Fast Fourier arithmetic Seismic wavefield Headwave |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
