简介:DELAY_Nisakindofimportantfunctioninsystemdynamic.Studiesaboutthebasicrelationaltypebetweenitsinputandoutputunderthediscretestatehavethesignificantinfluenceandinstructionindeterminationsystemdynamicsmodelparameter,indebuggingmodel,andinanalyzingresult.ThearticlehasobtainedtheDELAY_Ninputoutputrelationalexpressions,hasobtainedtheinputaveragedelaytimeandthedelayvarianceexpression,inthisfoundution,proposedonemethodofdeterminationdelayfunctiontype.
简介:在这篇论文,有连续分布式的延期的一个非线性的非自治的食肉动物猎物分散模型被学习,在所有参数是时间依赖者的地方。在由n补丁组成的这个系统,猎物种类能在n补丁之中分散,但是食肉动物种类被限制到一个补丁;不能分散。系统在任何分散率效果下面是一致地坚持的,这被证明。而且,一些足够的条件为系统的一个唯一的几乎周期的答案的存在被建立。例子证明在纸的标准是新的,一般;容易可证实。
简介:Theproblemofdelay-dependentrobuststabilityforsystemswithtitne-varyingdelayhasbeenconsidered.ByusingtheS-procedureandthePark'sinequalityintherecentissue,adelay-dependentrobuststabilitycriterionwhichislessconservativethanthepreviousresultshasbeenderivedfortime-delaysystemswithtime-varyingstructureduncertainties.Thesameideahasalsobeeneasilyextendedtothesystemswithnonlinearperturbations.Numericalexamplesillustratedtheeffectivenessandtheimprovementoftheproposedapproach.
简介:Somenewlinearmatrixinequality(LMI)representationsfordeley-independentanddelay-dependentstabilityconditionsareobtainedbyintroducingadditionalmatricesandeliminatingtheproductcouplingofthesystemmatricesandtheLyapunovmatrices.Theresultsimproveconservativenessofthegivenconditionsfortheanalysisandthedesignoftime-delaysystemswithpolytopic-typeuncertainty.
简介:Itisafactthatthefeedbackdelayactuallyarieseindigitalcontrolsystems.Itisnecessarytomodifythestructureofdigitalcontrolsystemsanddevelopnewcontrolalgorithms,whichisdoneinthispaper.Agreatnumberofdigitalcomputersimulationexperimentshaveshowntheobviousadvantageofthenewalgorithms.
简介:ThispaperinvestigatestherobuststochasticstabilityandH∞analysisforstochasticsystemswithtime-varyingdelayandMarkovianjump.Byusingthefreeweightingmatrixtechnique,i.e.,He’stechnique,andastochasticLyapunov-Krasovskiifunctional,newdelay-dependentcriteriaintermsoflinearmatrixinequalitiesarederivedforthetherobuststochasticstabilityandtheH∞disturbanceattenuation.Threenumericalexamplesaregiven.Theresultsshowthattheproposedmethodisefficientandmuchlessconservativethantheexistingresultsintheliterature.更多还原
简介:Inthispaper,adiscrete-timeanalysisofthethird-ordercharge-pumpbasedphase-lockedloops(CPLLs)ispresentedinthepresenceofloopdelay.Thez-domainanalysisoftheclosed-looptransferfunctionisderivedandcomparedwiththetraditionals-domainmethod.ThesimulationresultsunderSPECTREshowthat,duetothesamplingnatureofCPLL,thetraditionals-domainanalysisisunabletopredictitsjitterpeakingaccurately,especiallywhentheloopdelayistakenintoconsideration.Theimpactofloopdelayonthestabilityofthethird-orderCPLLsystemisfurtheranalyzedbasedontheproposedway.ThestabilitylimitofthewidebandwidthCPLLwithloopdelayiscalculated.Thecircuitsimulationresultsagreewellwithmathematicalanalysis.