%0 Journal Article
%T THE THREE PART DECOMPOSITION OF TURBULENT SIGNAL<br>湍流信号的三项分解
%A Wang Jiansheng
%A Shang Xiaodong
%A Shu Wei
%A <br>汪健生
%A 尚晓东
%A 舒玮
%J 力学学报
%D 1997
%I 
%X The turbulent signal measured by hot wire is decomposed into three parts with the digital filter and the wavelet analysis. First, the turbulent signal is decomposed into the small scale vortex that has approxmate isotropy and the large scale vortex. Then, the large scale vortex isdecomposed into the coherent and the non coherent parts. Compared with the conditional sampling, the decomposition is realiable. The time scale and non conditional mean profile of coherent structure can be obtained with this method.
%K digital filter
%K wavelet analysis
%K coherent structure
%K conditional sampling<br>数字滤波
%K 子波分析
%K 相干结构
%K 条件采样
%K 湍流
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=AE6D6FBC5E5081AC968DC2A6FE75ED2D&yid=5370399DC954B911&vid=771469D9D58C34FF&iid=94C357A881DFC066&sid=89389F643CA3F778&eid=500A64A3035F6B9C&journal_id=0459-1879&journal_name=力学学报&referenced_num=7&reference_num=2