简介：

简介：

简介：由围住的控制的多重综合者的系统的全球稳定问题被考虑。由嵌套的浸透功能组成的一条非线性的反馈法律被建议。是交上的结果的修正和归纳的这类非线性的反馈法律[1]仅仅需要[(n+1)/2](n是系统的尺寸)浸透元素，它比那是少数另外的非线性的法律需要它。而且，当任何一个都没在控制法律的浸透元素被浸透时，靠近环的系统的杆能在左真实的轴上被放在任何地点上。这类非线性的控制法律展出更简单的结构并且能显著地改进靠近环的系统的短暂表演，并且比另外的存在方法很优异。一个第四顺序的系统上的模拟被用来验证建议方法。

简介：Thespacecraftwithmultistagesolarpanelshavenonlinearcouplingbetweenattitudesofcentralbodyandsolarpanels,especiallytherotationofcentralbodyisconsideredinspace.Thedynamicsmodelisbasedfordynamicsanalysisandcontrol,andthemultistagesolarpanelsmeansthedynamicsmodelingwillbeverycomplex.Inthisresearch,theLiegroupvariationalintegratormethodisintroduced,andthedynamicsmodelofspacecraftwithsolarpanelsthatconnectstogetherbyflexiblejointsisbuilt.Themostobviouscharacterofthismethodisthattheattitudesofcentralbodyandsolarpanelsarealldescribedbythree-dimensionalattitudematrix.Thedynamicsmodelsofspacecraftwithoneandthreesolarpanelsareestablishedandsimulated.ThestudyshowsLiegroupvariationalintegratormethodavoidsparameterscouplingandeffectivelyreducesdifficultyofmodeling.TheobtainedcontinuousdynamicsmodelbasedonLiegroupisasetofordinarydifferentialequationsandequivalentwithtraditionaldynamicsmodelthatoffersabasisforthegeometrycontrol.

简介：All-opticalintegratorsarekeydevicesfortherealizationofultra-fastpassivephotonicnetworks,and,despitetheirbroadapplicabilityrange(e.g.,photonicbitcounting,opticalmemoryunits,analoguecomputing,etc.),theirrealizationinanintegratedformisstillachallenge.Inthiswork,anall-opticalintegratorbasedonasiliconphotonicphase-shiftedBragggratingisproposedandexperimentallydemonstrated,whichshowsawideoperationbandwidthof750GHzandintegrationtimewindowof9ps.Theintegraloperationforsinglepulse,inphasepulses,andπ-shiftedpulseswithdifferentdelayshasbeensuccessfullyachieved.

简介：Theeffectsofmeasurementnoiseareinvestigatedinthecontextofbipartiteconsensusofmulti-agentsystems.Inthesystemsetting,discrete-timedouble-integratordynamicsareassumedfortheagent,andmeasurementnoiseispresentfortheagentreceivingthestateinformationfromitsneighbors.Time-varyingstochasticbipartiteconsensusprotocolsaredesignedinordertolessentheharmfuleffectsofthenoise.Consequently,thestatetransitionmatrixoftheclosed-loopsystemisanalyzed,andsufficientandnecessaryconditionsfortheproposedprotocoltobeameansquarebipartiteconsensusprotocolaregivenwiththehelpoflineartransformationandalgebraicgraphtheory.Itisproventhatthesigneddigraphtobestructurallybalancedandhavingaspanningtreearetheweakestcommunicationassumptionsforensuringbipartiteconsensus.Inparticular,theproposedprotocolisameansquarebipartiteaverageconsensusoneifthesigneddigraphisalsoweightbalanced.