%0 Journal Article
%T Estimation of Q from VSP data with zero offset in wavelet domain<br>利用零偏移距VSP资料在小波域计算介质Q值
%A ZHAO Wei
%A GE Yan
%A <br>赵伟
%A 葛艳
%J 地球物理学报
%D 2008
%I 
%X This paper is devoted to the estimation of Q-factor in dispersive medium from zero offset VSP data in the wavelet domain. Suppose that the source signature can be approximated by a wavelet with zero-phase, we obtain a formula with which one can calculate the Q-factor from VSP data in the wavelet domain. By taking a proper coordinate frame transform, our formula has a similar form with the counterpart for the source signature to be pulse. By using the method on synthetic VSP data, we estimate the Q which are nearly the same as model parameters. In addition our method can decrease the effect from near reflector.
%K Q-factor
%K VSP
%K Wavelet transform<br>介质Q值
%K 垂直地震剖面
%K 小波变换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=9E2957E21850D74C16D65419F28EC862&yid=67289AFF6305E306&vid=987EDA49D8A7A635&iid=E158A972A605785F&sid=C80CAAD049B5B990&eid=83B38B9EF611BE13&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=5&reference_num=13