功率谱估计的Welch方法中的窗函数研究(5)

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TheResearchofWelchMethodinEstimateofPowerSpectram

FANYu　,　WUZhen-yi

(Dept.ofPhysics,ChangshuCollege,Changshu215500)

Abstract:Inthefieldofclassicalchart,Welchputforwardtoamendperiodictable,whichisprovedtobeeffectiveinap2pliance.Itissimpleandeasytounderstand,besides,itisconvenienttocalculate.Undermanyconditions,itsfrequencydistinctionandestimatevariancecansatisfythepracticalappliance.ThispaperisabouttheanalysisofcharacteristicsofWelch’sestimatechat,itsadvantagesanddisadvantagesaswell.

Keywords:Welch;PowerSpectramestimation;Windowfunction

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