資源簡介
EEMD是Ensemble Empirical Mode Decomposition的縮寫,中文是集合經驗模態分解,是針對EMD方法的不足,提出了一種噪聲輔助數據分析方法。EEMD分解原理是當附加的白噪聲均勻分布在整個時頻空間時,該時頻空間就由濾波器組分割成的不同尺度成分組成。

代碼片段和文件信息
%?This?is?a?utility?program?being?called?by?“significance.m“.
%
%???function?PDF?=?dist_value(yPos?yBar?nDof)
%
function?PDF?=?dist_value(yPos?yBar?nDof)
%???function?PDF?=?dist_value2(yPos?yBar?nDof)
%
%???PDF:?a?normalized?output?array?
%???yPos:?An?input?array?at?which?PDF?values?are?calculated
% yBar:?The?expected?value?of?yPos?
% nDof:?The?number?of?degree?of?freedom
%
%
%?References?can?be?found?in?the?“Reference“?section.
%
%?The?code?is?prepared?by?Zhaohua?Wu.?For?questions?please?read?the?“Q&A“?section?or
%?contact
%???zwu@fsu.edu
%
ylen?=?length(yPos);
eBar?=?exp(yBar);
evalue=exp(yPos);
for?i=1:ylen
????tmp1?=?evalue(i)/eBar-yPos(i);
????tmp2?=?-tmp1*nDof*eBar/2;
????tmp3(i)?=?0.5*nDof*eBar*log(nDof)?+?tmp2;
end
rscale?=?max(tmp3);
tmp4?=?tmp3?-?rscale;
PDF=?exp(tmp4);
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????517??2009-09-27?11:44??inf7inf8.m
?????文件???????2938??2010-06-01?15:50??significance.m
?????文件????????510??2009-09-27?11:44??stations_2or3.m
?????文件???????2723??2010-10-28?21:00??twEEMD.m
?????文件????????843??2010-06-01?15:55??dist_value.m
?????文件???????2006??2009-09-27?11:44??eemd.m
?????文件????????584??2009-09-27?14:31??EEMD_individual.m
?????文件???????2182??2009-09-27?11:44??extrema.m
?????文件???????1820??2010-06-01?15:48??ifndq.m
-----------?---------??----------?-----??----
????????????????14123????????????????????9
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