%0 Journal Article
%T Study on the one-step datuming method based on the straight-rays assumption<br>基于直射线近似的一步法基准面校正方法研究
%A YANG Kai
%A CAI Jie-Xiong
%A FAN Xu
%A MAO Hai-Bo
%A <br>杨锴
%J 地球物理学报
%D 2009
%I 
%X Based on the straight-rays approximation and the Snell law, a new datuming operator-Topographic Datuming Operator (TDO) is derived. The new redatuming operator derived here is based on straight-rays approximation above and below a chosen datum. It is directly applied to common-source gathers to downward continue the source and the receivers, simultaneously, from the rugged surface to the given datum level without resorting to common receiver gathers. As a result, the method is more efficient. In this paper, the theoretical foundation of the TDO is discussed in detail and the numerical tests are applied on the synthetic and real data.
%K Topographic Datuming Operator (TDO)
%K Straight-rays approximation
%K One step datuming
%K Extrapolation<br>地形基准面校正算子(TDO)
%K 直射线近似
%K 一步法基准面校正
%K 延拓
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=BEEA540D35A886DDB972FBC6A7D24C0A&yid=DE12191FBD62783C&vid=286FB2D22CF8D013&iid=E158A972A605785F&sid=818971F8BC8F9389&eid=61EDB4BBA42E40FF&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=0&reference_num=12