地震波数据处理_滤波_基线校正_微分积分(非常有价值的参考文献)

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1、SoilDynamicsandEarthquakeEngineering25(2005)93–115www.elsevier.com/locate/soildynProcessingofstrong-motionaccelerograms:needs,optionsandconsequencesDavidM.Boorea,JulianJ.Bommerb,*aUSGeologicalSurvey,345MiddlefieldRoad,MenloPark,CA94025,USAbCivilandEnvironmentalEngineering,ImperialCollege

2、London,LondonSW72AZ,UKAccepted25October2004AbstractRecordingsfromstrong-motionaccelerographsareoffundamentalimportanceinearthquakeengineering,formingthebasisforallcharacterizationsofgroundshakingemployedforseismicdesign.Therecordings,particularlythosefromanaloginstruments,invariablycont

3、ainnoisethatcanmaskanddistorttheground-motionsignalatbothhighandlowfrequencies.Foranyapplicationofrecordedaccelerogramsinengineeringseismologyorearthquakeengineering,itisimportanttoidentifythepresenceofthisnoiseinthedigitizedtime-historyanditsinfluenceontheparametersthataretobederivedfro

4、mtherecords.Iftheparametersofinterestareaffectedbynoisethenappropriateprocessingneedstobeappliedtotherecords,althoughitmustbeacceptedfromtheoutsetthatitisgenerallynotpossibletorecovertheactualgroundmotionoverawiderangeoffrequencies.Therearemanyschemesavailableforprocessingstrong-motiond

5、ataanditisimportanttobeawareofthemeritsandpitfallsassociatedwitheachoption.Equallyimportantistoappreciatetheeffectsoftheproceduresontherecordsinordertoavoiderrorsintheinterpretationanduseoftheresults.Optionsforprocessingstrong-motionaccelerogramsarepresented,discussedandevaluatedfromthe

6、perspectiveofengineeringapplication.q2004ElsevierLtd.Allrightsreserved.Keywords:Strong-motionaccelerograms;Signal-to-noiseratios;Instrumentcorrections;Baselineadjustments;Filters1.Introduction1933,hasbeenofprimordialimportancetothedevelopmentofearthquakeengineering.Seismicdesignisprimar

7、ilyconcernedwiththebalanceAlthoughstrong-motionaccelerogramshaveprovidedbetweenthepotentialofgroundshakingtocausedamageseismologistsandengineerswithvaluableinsightintothe(demand)andtheabilityofstructurestoresistdamagenatureofearthquakegroundshakingclosetotheearthquake(capacity)