%0 Journal Article
%T Nonlinear noise reduction for electrocorticograms<br>皮层脑电的非线性降噪
%A Xie Yong
%A Xu Jian-Xue
%A Kang Yan-Mei
%A Yang Hong-Jun
%A Hu San-Jue
%A <br>谢勇
%A 徐健学
%A 康艳梅
%A 杨红军
%A 胡三觉
%J 物理学报
%D 2003
%I 
%X Local projective nonlinear noise reduction method,which is based on locally linear fits to the nonlinear dynamics,is introduced to reduce the noise in electrocorticograms of Spragure-Dawley rats.Recurrence plots are used to estimate the size of local neighbours.In this way,the noise reduction is improved markedly.In order to show that the program for noise reduction is correct,a noise reduction process is implemented for x-axial time series of Lorenz equation contaminated by 50% gaussian white noise.And then,this noise reduction scheme is applied separately to electrocorticograms of anaesthetized rats and those of the onset of epilepsy induced by penicillin in anaesthetized rats.The analyses of a nonlinear prediction demonstrate the efficiency of noise reduction.
%K electrocorticograms
%K recurrence plots
%K nonlinear noise reduction
%K nonlinear prediction<br>皮层脑电，
%K 返回图法，
%K 非线性降噪，
%K 非线性预报
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=3C56C4533CD353DC&yid=D43C4A19B2EE3C0A&vid=286FB2D22CF8D013&iid=94C357A881DFC066&sid=F88EF6DD822B0FF5&eid=6BF76AE9E086F688&journal_id=1000-3290&journal_name=物理学报&referenced_num=6&reference_num=25