摘要
本文从有限差分法数值模拟技术的各个方面对地震波有限差分模拟的发展和现状进行了论述.波场的数值模拟技术是认识地震波传播规律,检验各种处理方法正确性的重要工具,地震波的数值模拟是地震波传播规律研究的必要手段,贯穿于地震资料的采集、处理、解释的整个过程中.有限差分法数值模拟技术相对于射线方法具有更高的精度,同时比有限元方法计算量小,因此在实际应用中占很重要的地位.
The numerical seismic wave propagation modeling is a powerful tool in the oil exploration , such as the date collection, the processing and the interpretation and so on . It can not only find out the properties of the media, but also check the validity of processing methods, recognize the law of the wave propagation. In all the numerical methods, the finite-difference method is more useful with its advantages, such as high precision, flexibility, costless. In this paper, several parts of the finite-difference method are discussed, such as the finite-- scheme, the source problem, the boundary condition and the numerleal dispersion dumbness.
出处
《地球物理学进展》
CSCD
北大核心
2007年第2期487-491,共5页
Progress in Geophysics
基金
国家973项目(2005CB422104)
中国科学院知识创新工程重大项目资助(KZCX1-SW-18-04)联合资助
关键词
有限差分
差分格式
震源
边界条件
数值频散
finite-difference, source, boundary condition, wave propagation, numerical dispersion
