简介:Thelinearcombinationofcertainpartitionofunity,subordinatetocertainopencoveringofacompactset,isprovedtobecapableofapproximatingtoacontinuousfunctionatarbitrarilyprecision.Byusingproperopencoveringandpartitionofunity,therobustnonlinearcontrollersandadaptivelawsaredesignedforaclassofnonlinearsystemswithuncertainties.Thestatesandparametersoftheclosed-loopsystemscanbestabilizedinthemeaningofUUB(uniformlyultimatelybounded)viatherobustnonlinearcontrollersandadaptivelaws.Finally,anexampleshowsthevalidityofmethodinthispaper.