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Wysłany: Sob 6:32, 19 Lut 2011 Temat postu: UGG ブーツ Hilbert - Huang Tra |
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Hilbert - Huang Transform algorithm extension
M]. KoreanSocietyofCoastalandOceanEngineers. 1999.81-92. ZHAOJP. HIIANGDJ. Mirrorextendingandcircularspinefunctionforempiricalmodedee ~ 'npositionmethod [J]. JournalofZhejiangUniversity (scIENCE) ,[link widoczny dla zalogowanych],2001,2:247-252. PracticalimplementationoftheHilbert-HuangTransformalgorithmHUANGDa-ji, ZI-IAOJin-ping, SUji-lan (1.LaboratoryoftheOceanDynamicProcessesandSatelliteOceanography; SecondInstituteofOceanography,[link widoczny dla zalogowanych], StateOceanicAdministration,[link widoczny dla zalogowanych], Hang ~ um310012,[link widoczny dla zalogowanych], China) Abstract: Hilbert-HuangTransform (H ~ r) isanewlydevelopedpowerfulmethodfornonlinearandnon-stationarytimeseriesanalysis. TheempiricalmodedecompositionisthekeypartofHHT. whileitsalgorithmwasprotectedbyNASAasaUSpatent, whichlimitsthewidelyapplicationamongthescientificcommunity. Twoapproaches,[link widoczny dla zalogowanych], mirrorperiodicandextrem ~ extendingmethods, havebeendevelopedforhandlingtheendeffectsofempiricalmodedee ~ nposition. TheimplementationoftheHHTisrealizedindetailtowidentheapplication. ThedetailcomparisonofresultsfromtwomethodswiththatfromHuangeta1. (1998,1999), aSwellaSthecomparisonbetweentwomethodsispresented. Generally. bothmethodsreproducefaithfulresultsaSthatofHuangeta1. Formirrorperiodicmethod (MPM), thedataisextendedonceforever. Ideally, itisawayforhandlingtheendeffectsoftheHHT. espedallyforthesign ~ thathassymmetricwave ~ olTn. Theextremaextendingmethod (EEM) behavesaSgoodaPM, anditietterthanMMforthesign ~ thathasstrongasymmetricwaveform. However. ithastoperformextremaenvelopeextendingineveryshiftingprocess. Keywords: Hil ~ rt-HuangTransform (HHT); signalprocessing; EmpiricalModeDecomposition (EMD) ...
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