文档介绍：Chapter8ParameterIdentificationByImpulseandPulseResponseLiShaoyuanE-mail:IMPULSERESPONSEBasicPrinciplesThemainstrategyofimpulse-responseidentificationistoobtainprocesstransferfunctionmodelsdirectlyfromexperimentalimpulse-’:,therefore:Now,thepowerseriesexpansionfore-st:es:IdentificationofSimpleModelFormsTheprocedure,usingtheimpulse-responseapproach,’-responsedata,,-OrderModelSecond-OrderModelSecond-Order-Plus-Single-ZeroModelFirst-Order-Plus-Time-DelayModelObtainingMomentsFromExperimentalDataExperimentalimpulse-responsedataareusuallyobtainedatdiscretepointsintime,-responseDataFromOtherResponsesInpractice,itmaynotalwaysbepossibletoimplementaninputfunctionthatiscloseenoughtoanidealimpulse;FromExperimentalStep-ResponseDataFromArbitraryInput/OutputDataForeachobservedexperimentaldatapointwemaynowwrite,usingthisexpression:whichmaybewrittentogetheras:FrequencyIdentificationFromPulseResponse