高精度有限差分地震波正演方法

CORC > 北京大学 > 地球与空间科学学院

	高精度有限差分地震波正演方法; The Precise Finite Difference Method for Seismic Modeling
	王润秋 ; 贾晓峰 ; 胡天跃
刊名	应用地球物理英文版
	2004
关键词	正演模拟波动方程有限差分任意差分精细积分 modeling wave equation finite difference arbitrary difference precise integration
英文摘要	三维地震模拟不仅可以更精确地研究地震波的传播规律,而且是三维地震资料处理和解释的工具.本文采用精细积分法用于求解波动方程对波动方程在空间采用差分格式,时间域采用积分法求解析的方法.文中详细论述了精细积分法的数值方法,并给出了计算公式.理论分析和数值算例的结果表明了用这种混合方法得到的解与精确解十分吻合,比有限差分法具有更高的精度.文中给出的地震波正演模拟算例说明了该方法适用于复杂地表和复杂构造地质体.; 3-D seismic modeling can be used to study the propagation of seismic wave exactly and it is also a tool of 3-D seismic data processing and interpretation. In this paper the arbitrary difference and precise integration are used to solve seismic wave equation, which means difference scheme for space domain and analytic integration for time domain. Both the principle and algorithm of this method are introduced in the paper. Based on the theory, the numerical examples prove that this hybrid method can lead to higher accuracy than the traditional finite difference method and the solution is very close to the exact one. Also the seismic modeling examples show the good performance of this method even in the case of complex surface conditions and complicated structures.; 国家重点基础研究发展计划(973计划); 0; 2; 69-74; 1
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/267536]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	王润秋,贾晓峰,胡天跃. 高精度有限差分地震波正演方法, The Precise Finite Difference Method for Seismic Modeling[J]. 应用地球物理英文版,2004.
APA	王润秋,贾晓峰,&胡天跃.(2004).高精度有限差分地震波正演方法.应用地球物理英文版.
MLA	王润秋,et al."高精度有限差分地震波正演方法".应用地球物理英文版 (2004).