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1、ASurveyofNetworkedControlSystemswithDelayandPacketDropoutYu-LongWang1,Wei-TingLiu1,Xun-LinZhu2,ZhaopingDu11.SchoolofElectronicsandInformation,JiangsuUniversityofScienceandTechnology,Zhenjiang212003,China2.ComputerScienceandCommunicationEngineeringDepartment,ZhengzhouUniversityofLightIn
2、dustry,Zhengzhou,450002,ChinaE-mail:feixiangwyl@163.comAbstract:Networkedcontrolsystems(NCSs)arefeedbackcontrolsystemswithcontrolloopsclosedviadigitalcommu-nicationchannels.Thispaperreviewstherecentresultsonnetwork-induceddelayandpacketdropout.Theapproachesdealingwithcontinuous-timeNCS
3、swithdelayarereviewed,andthejumpsystemapproachispresentedtomodelthevariationofdelay.Thenon-uniformdistributioncharacteristicofnetwork-induceddelayistakenintofullconsideration,andthelinearestimation-basedpacketdropoutcompensationmethodisreviewed.KeyWords:NCSs,Network-InducedDelay,Packet
4、Dropout1INTRODUCTION2CONTINUOUS-TIMENCSsWITHPACKETDROPOUTANDNETWORK-INDUCEDDE-Networkedcontrolsystems(NCSs)arefeedbackcontrolLAYsystemswithcontrolloopsclosedviadigitalcommunica-Introducingnetworkintotraditionalcontrolsystemswilltionchannels.leadtonetwork-induceddelayandpacketdropoutin-
5、Theuseofamultipurposesharednetworktoconnectspa-evitably.Thenetwork-induceddelayandthenumberoftiallydistributedelementsresultsinflexiblearchitecturespacketdropoutareusuallytime-varying.Ifthecontrollerandgenerallyreducesinstallationandmaintenancecosts.andactuatorareevent-driven,thenetwork
6、-induceddelayNCSshavebeenfindingapplicationinabroadrangeofar-willnotbetheintegermultipleofsamplingperiod,whicheassuchasmobilesensornetworks,hapticscollaborationwillintroducemorecomplexityforsystemanalysisandovertheInternet,etc.However,theinsertionofthecom-synthesis.Muchattentionhasbeenp
7、aidtoNCSswithmunicationnetworkwillleadtonetwork-induceddelayandtime-varyingnetwork-induceddelayandpacketdropout.datapacketdropout,whichmightbepotentialsourcestoConsideralineartime-invariantcontinuous-timesysteminstabilityandpoorperformanceofNCSs.Thispaperattemptstosystematicallyaddre
