| 三维介质中速度结构和界面的联合成像 |
| |
| 引用本文： | 周龙泉,刘福田,陈晓非.三维介质中速度结构和界面的联合成像[J].地球物理学报,2006,49(4):1062-1067. |
| |
| 作者姓名： | 周龙泉 刘福田 陈晓非 |
| |
| 作者单位： | 1.北京大学地球物理系, 北京 100871 2 中国地震台网中心， 北京 100036 3 中国科学院地质与地球物理研究所, 北京 100029 |
| |
| 基金项目： | 国家“863”计划（2003AA611010-01）资助. |
| |
| 摘 要： | 根据波逆行原理推导了三维介质中地震波射线走时对界面偏导数的完整基本关系式,并对基本关系式进行简化,得到其在二维和一维介质中的关系式. 给出了任意多个复杂界面情况下,反演时所需的走时对界面偏导数系数矩阵. 为了检验三维介质中速度和界面联合成像理论的有效性，进行了数值模拟计算，很好地对三维速度结构和界面进行了重建.
|
| 关 键 词： | 联合成像 波逆行原理 走时对界面偏导数 |
| 文章编号： | 0001-5733（2006）04-1062-06 |
| 收稿时间： | 2005-01-25 |
| 修稿时间： | 2005-01-252006-04-09 |
Simultaneous tomography of 3_D velocity structure and interface |
| |
| ZHOU Long-Quan,LIU Fu-Tian,CHEN Xiao-Fei.Simultaneous tomography of 3_D velocity structure and interface[J].Chinese Journal of Geophysics,2006,49(4):1062-1067. |
| |
| Authors: | ZHOU Long-Quan LIU Fu-Tian CHEN Xiao-Fei |
| |
| Institution: | 1.Department of Geophysics, Peking University, Beijing 100871，China 2 China Earthquake Networks Center, Beijing 100036, China 3 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029,China |
| |
| Abstract: | We deduce the 3-D interface partial derivative of the travel time according to the theory of wave inverse propagation, simplify the full formula of 3-D interface partial derivative and gain the interface partial derivative of the reflection travel time in 2-D media and 1-D media. We also give the matrix forms of the interface partial derivative with multiple complex interfaces. For determination of the validity of this method, we give the results of numerical simulation that show the method can reconstruct 3-D velocity structure and interfaces well. |
| |
| Keywords: | Simultaneous tomography Theory of wave inverse propagation Interface partial derivative of travel time |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
