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| 三维定位原理与三维反射波场模拟 | |
| 引用本文： | 熊高君,张学工,贺振华,吴正伯. 三维定位原理与三维反射波场模拟[J]. 矿物岩石, 2002, 22(3): 93-97 |
| 作者姓名： | 熊高君 张学工 贺振华 吴正伯 |
| 作者单位： | 1. 清华大学自动化系智能技术与系统国家重点实验室,北京,100084 2. 成都理工大学信息工程学院,四川,成都,610059 3. 交通部广州信息技术研究所,广东,广州,510039 |
| 摘 要： | 在三维正演模拟定位原理基础上 ,以单程声波方程作为波场外推手段 ,实现三维叠前反射波场模拟 ,完全克服了全波方程模拟的 3个问题。在波场外推中 ,使用波动方程的混合解法 ,即以波动方程解析解 (相位移法 )为主 ,在介质速度横向变化的地方 ,用数值解 (45°有限差分 )作补充 ,使得整个算法精确、快速 ,既能处理复杂构造 ,又能适应速度的任意变化。 |
| 关 键 词： | 三维定位原理 声波方程 三维反射波 正演模拟 混保延拓法 地震信号处理 |
| 文章编号： | 1001-6872(2002)03-0093-05 |
| 修稿时间： | 2002-02-04 |
3D POSITIONING PRINCIPLE & 3D REFLECTED WAVE FIELD MODELING |
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| XIONG Gao-jun,ZHANG Xue-gong,HE Zhen-hua,WU Zheng-bo .Automation. 3D POSITIONING PRINCIPLE & 3D REFLECTED WAVE FIELD MODELING[J]. Journal of Mineralogy and Petrology, 2002, 22(3): 93-97 | |
| Authors: | XIONG Gao-jun ZHANG Xue-gong HE Zhen-hua WU Zheng-bo .Automation |
| Affiliation: | XIONG Gao-jun~1,ZHANG Xue-gong~1,HE Zhen-hua~2,WU Zheng-bo~3 1.Automation Department of Tsinghua University,State Key Laboratory of Intelligent Technology and Systems,Beijing 100084,China, 2.Information Engineering School |
| Abstract: | dmension positioning principle of forward modeling was presented on the basis of extrapolating wave field by one-way acoustic wave equation.The method of 3-dimension pre-stack reflection wave field modeling,whichcould completely solve the three problems of full acoustic wave forward modeling was deduced.In the course of wave field extrapolation,analytic method of wave equation was employed,and numeric method was also used as complement under the condition of lateral velocity variation.The whole process is accurate,speedy,and can deal with complex structure and random velocity variation. |
| Keywords: | positioning principle acoustic wave equation 3-dimension reflection wave forward modeling hybrid extrapolating method |
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