%0 Journal Article
%T A staggered-grid high-order difference method of complex frequency-shifted PML based on recursive integration for elastic wave equation<br>基于递归积分的复频移PML弹性波方程交错网格高阶差分法
%A ZHANG Xian-Wen
%A HAN Li-Guo
%A HUANG Ling
%A LI Xiang
%A LIU Qian-Kun
%A <br>张显文
%A 韩立国
%A 黄玲
%A 李翔
%A 刘前坤
%J 地球物理学报
%D 2009
%I 
%X The classical PML algorithm will make spurious reflection for the waves being incident on the PML interface at near-grazing angles and the evanescent waves within PML. We adopt a nonsplit complex frequency-shifted PML method based on recursive integration, which includes the complex frequency-shifted stretching function and substantially improves the performance of the PML boundary condition. Furthermore, we derive a nonsplit staggered-grid higher-order difference method of complex frequency-shifted PML based on recursive integration for elastic wave equation. Compared to the classical PML, the results of models with an elongated domain show the absorption performance to both body waves with grazing incidence and evanescent waves within PML.
%K Staggered-grid
%K Higher-order finite difference
%K Perfectly matched layer
%K Recursive integration<br>交错网格
%K 高阶有限差分
%K 完全匹配层
%K 递归积分
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=C713898A0C74835730463B1EE8CFD15A&yid=DE12191FBD62783C&vid=286FB2D22CF8D013&iid=DF92D298D3FF1E6E&sid=ABD3F52B9C9810A2&eid=68171D3FB779E811&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=1&reference_num=22