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資源簡介

數據包里有原始數據,打開就可以看到效果。先用采集卡采集信號,得到信號后做EMD去趨勢處理,去直流處理,然后時域分析波形(脈沖寬度等),頻域分析(峰值頻率,低頻,中心頻率等);

資源截圖

代碼片段和文件信息

function?[allmode]?=?eemd(Y?NoiseLevel?NE?numImf?varargin)
%?fast?EMD/EEMD/CEEMD?code:
%??Copyright?(C)?RCADA?National?Central?University;?2013
%??*****?For?Educational?and?Academic?Purposes?Only?*********?
%??Author?:?Yung-Hung?Wang?RCADA?NCU
%
%?Please?Cite:?
%?Y.?H.?Wang?C.?H.?Yeh?H.?W.?V.?Young?K.?Hu?and?M.?T.?Lo
%?“On?the?computational?complexity?of?the?empirical?mode?decomposition
%?algorithm“
%?Physica?A:?Statistical?Mechanics?and?its?Applications?vol.?400Issue?15?pp.?159-167?2014
%
%?Usage:?
%?(A)?[allmode]=eemd(Y?NoiseLevel?NE?numImf)
%?(B)?[allmode]=eemd(xNoiseLevelNEnumImfrunCEEMDmaxSifttypeSplinetoModifyBCrandTypeseedNocheckInput);
%---------------------------------------------------------------
%?INPUTS?:?
%????????Y:?input?signal
%????????NoiseLevel:?noise?level
%????????NE:?ensemble?number;?if?NE=1?and?NoiseLevel?=?0?then?run?EMD?[2]
%????????numImf:?number?of?prescribed?imf;?if?it?is?less?than?zeroit?will?be?log2(n)?n=data?length?
%?
%-------------Additional?Input?Properties-----------------------------------------
%?runCEEMD:?default=0;?0:?run?EEMD?[3];?1:?CEEMD?[4]?add?anti-phase?noise?so?input?signal?is?reconstructed;?
%?maxSift:default?=?10;?sifting?iteration?number;?
%?typeSpline:?default=2;?1:?clamped?spline;?2:?not?a?knot?spline;?3:?natural?cubic?spline;
%?toModifyBC:?default=1;?0:?None?;?1:?modified?linear?extrapolation;?2:?Mirror?Boundary
%?randType:?fefault=2;?1:?uniformly?distributed?random?noise;?2:?gaussian?white?noise
%?seedNo:?default=1;?random?seed?number?in?generating?white?noise;?The?seed?number?must?be?an?integer?between?0?and?2^32?-?1
%?checkSignal:?default=1;??0=>?dont?check??the?input?signal;??1:?check?there?is?any??NaN?or?Infinity?in?input;
%
%?OUTPUTS?:
%??allmode[m][t]:?returned?imfs;?m=imf?index?t=time?index
%
%?References
%????[1]?Y.?H.?Wang?C.?H.?Yeh?H.?W.?V.?Young?K.?Hu?and?M.?T.?Lo?
%????????“On?the?computational?complexity?of?the?empirical?mode?decomposition?algorithm“
%????????Physica?A:?Statistical?Mechanics?and?its?Applications?vol.?400?Issue?15?pp.?159-167?2014
%????[2]?N.?E.?Huang?Z.?Shen?S.?R.?Long?M.?L.?Wu?H.?H.?Shih?Q.?Zheng?N.?C.?Yen?C.?C.?Tung?and?H.?H.?Liu?
%????????“The?Empirical?Mode?Decomposition?and?Hilbert?spectrum?for?nonlinear?and?non-stationary?time?series?analysis“
%????????Proc.?Roy.?Soc.?London?A?Vol.?454?pp.?903995?1998.
%????[3]?Z.?Wu?and?N.?E.?Huang?“Ensemble?Empirical?Mode?Decomposition:?A
%????????Noise-Assisted?Data?Analysis?Method“?Advances?in?Adaptive?Data?Analysis?vol.?1?pp.?1-41?2009.
%????[4]?J.?R.?Yeh?J.?S.?Shieh?and?N.?E.?Huang?“Complementary?ensemble?empirical
%????????mode?decomposition:?A?novel?noise?enhanced?data?analysis?method“?
%????????Advances?in?Adaptive?Data?Analysis?vol.?2?Issue?2?pp.?135156?2010.
%
%


fprintf(‘Copyright?(C)?RCADA?NCU?Taiwan.\n‘);

allmode?=?[];
%verifyCode?=?20041017;?%?For?verification?of?emd

[YNoiseLevelNE

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????112697??2014-04-01?17:02??FEEMD\BFVL.mat

?????文件???????7870??2014-09-04?17:56??FEEMD\eemd.m

?????文件??????22140??2014-09-04?16:52??FEEMD\emd.mexa64

?????文件??????16896??2014-08-01?13:27??FEEMD\emd.mexw32

?????文件??????21504??2014-09-04?17:26??FEEMD\emd.mexw64

?????文件???????2551??2015-06-15?09:38??FEEMD\example_eemd.asv

?????文件???????2541??2015-06-22?11:00??FEEMD\example_eemd.m

?????文件?????756829??2014-04-01?17:01??FEEMD\ref.pdf

?????文件??????53820??2015-06-06?22:59??FEEMD\直探頭?BFA086?20150605?202719?衰減200m.txt

?????文件??????53908??2015-06-16?22:16??FEEMD\直探頭?EDH004?20150616?220903?50m.txt

?????文件??????53947??2015-06-16?22:10??FEEMD\直探頭?EDH004?20150616?221000.txt

?????文件??????54282??2015-06-18?22:01??FEEMD\直探頭?EDH004?20150618?215701.txt

?????文件??????54324??2015-06-18?18:10??FEEMD\直探頭?EDH019?20150618?180538.txt

?????目錄??????????0??2015-06-22?10:56??FEEMD

-----------?---------??----------?-----??----

??????????????1213309????????????????????14


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