简介:Thelinearcombinationofcertainpartitionofunity,subordinatetocertainopencoveringofacompactset,isprovedtobecapableofapproximatingtoacontinuousfunctionatarbitrarilyprecision.Byusingproperopencoveringandpartitionofunity,therobustnonlinearcontrollersandadaptivelawsaredesignedforaclassofnonlinearsystemswithuncertainties.Thestatesandparametersoftheclosed-loopsystemscanbestabilizedinthemeaningofUUB(uniformlyultimatelybounded)viatherobustnonlinearcontrollersandadaptivelaws.Finally,anexampleshowsthevalidityofmethodinthispaper.
简介:Wediscusstheglobalstabilizationprocedurewhichrendersageneralclassoffeedbacknonlinearsystemsexponentialconvergent.Ourstabilizerconsistsofanestedsaturationfunction,whichisanonlinearcombinationofsatrrationfunctions.Hereweprovetheexponentialconvergenceofthestabilizerforthefirsttimeandgivenumericalexamplestoillustratetheefficiencyoftheresultgivenabove.
简介:Formultisensorsystems,whenthemodelparametersandthenoisevariancesareunknown,theconsistentfusedestimatorsofthemodelparametersandnoisevariancesareobtained,basedonthesystemidentificationalgorithm,correlationmethodandleastsquaresfusioncriterion.SubstitutingtheseconsistentestimatorsintotheoptimalweightedmeasurementfusionKalmanfilter,aself-tuningweightedmeasurementfusionKalmanfilterispresented.Usingthedynamicerrorsystemanalysis(DESA)method,theconvergenceoftheself-tuningweightedmeasurementfusionKalmanfilterisproved,i.e.,theself-tuningKalmanfilterconvergestothecorrespondingoptimalKalmanfilterinarealization.Therefore,theself-tuningweightedmeasurementfusionKalmanfilterhasasymptoticglobaloptimality.Onesimulationexamplefora4-sensortargettrackingsystemverifiesitseffectiveness.
简介:这篇论文在一条单个小巷基于对领先的汽车的运动的车辆的非线性的反应为模仿的交通流动讨论动态行为和它的预言。交通混乱是一块有希望的地,并且混乱理论被使用了识别并且预言它的混乱运动。模仿的交通流动用一个汽车追随者模型(美国通用汽车公司模型)被产生,并且在二辆汽车之间的距离为它的动态性质被调查。积极Lyapunovexponent在GM模型证实混乱行为的存在。用RBFNN的一个新算法(光线的基础功能神经网络)被建议预言这交通混乱。混乱的度和可预言的度被第一个Lyapunov代表决定的实验hows。算法在这建议纸能被概括认出并且预言混乱ofshort时间交通流动系列。
简介:Thispaperstudiestheglobalrobustoutputregulationproblemforlowertriangularsystemssubjecttononlinearexosystems.Byemployingtheinternalmodelapproach,thisproblemcanbeboileddowntoaglobalrobuststabilizationproblemofatime-varyingnonlinearsysteminthecascade-connectedform.Then,asetofsufficientconditionsforthesolvabilityoftheproblemisderived,andthus,leadingtothesolutiontotheglobalrobustoutputregulationproblem.Anapplicationofthemainresultofthispaperisalsoproposed.
简介:这篇论文建议一个延期依赖者为引擎保证费用得到了控制计划有induction-to-torque延期和外部负担骚乱的闲散速度控制(ISC)。以操作模式的闲散速度的引擎的一个扩充linearization模型基于物理原则和实验数据被开发。在ISC一起提供在骚乱拒绝和ISC,上面的界限被给的多客观的费用功能,它能帮助我们考虑燃料经济和骚乱拒绝性能的另外的表演要求之间的妥协。杆限制被加到靠近环的系统保证状态的集中率。ISC的整个优化答案能在LMI的框架下面被解决。一个商业引擎模型被利用估计控制器的表演。这个模型上的模拟结果给我们看设计控制器能完成需要的性能。