寬帶無線通信系統(tǒng)盲均衡技術(shù)研究.pdf

1、分類號密級UDC學位論文寬帶無線通信系統(tǒng)盲均衡技術(shù)研究(題名和副題名)駱春波(作者姓名)指導教師姓名龔耀寰教授電子科技大學博導成都(職務、職稱、學位、單位名稱及地址)申請專業(yè)學位級別碩士專業(yè)名稱信號與信息處理論文提交日期2007.11論文答辯日期2007.11學位授予單位和日期電子科技大學答辯委員會主席評閱人2007年月日注l:注明《國際十進分類法UDC》的類號。AbstractAbstraCtNextgenerationwireles

2、scommunicationsystemimPoseshighstardfthedatatransP0rtationrateandqualityofse腳iee，WhichrequirenewandmoreadvancedPhysicallayerteclmologiestosuPPort.UndertheeonditionofhighthroughPutrate，thefrequeney一iveProPertywillseverely

3、degradethesignalqualityinthereceiver，eausingunaeeePtableintercodeinterferenee(ICI).ForthesakeofredueingeradieatingsuchnegativeinfiueneeandimProvingthesystem’5Peiformance，withhighreliabilityandeasyimPlementingstrueture，eq

4、ualizationteehnologieshavebeenProPosedandwidelyaPPliedinthecornrou址eationsystems.Themainworkofthisthesis15tesearehthechaunelequalizationteehnologies.FirstlythetechnologicalimPromentsofwirelesscommunieationaresummarizedan

5、dthenewdeveloPmentmentsfnextgenerationsystemareanalyzed:thentheequal讓ationtheiesandalgorithlnsaredescribedfinallyseveraleomPutersimulationexPerimentsaregiventoshowthePerformaneewithnecessaryanalysisexPlanation.Besidesthe

6、seeontributions，thenewTuthoequalizationalgorithmhigherderblindequaliZationalgorithlnarealsosPeeifiedands加ulated，whichhavesignificantvaluesinanalysisaPPlieation.ThemostimPtantcreativejobofthisthesisistoPresenttwonovelblin

7、dequalizationalgorithms.ByaPPlyingthenewdeveloPmentsinsignalProcessingfield，ouralgorithmshaveoutstandingPerformaneewithtinyadditiolaleomPutationcomPlexity，whieverifiedbysimulationexPeriments.Thekeywkandiunovationsofthist

8、hesismainlyinclude:1.Researehoftheequalizationtheoryandrules.SeveralexPerimentsaboutthetyPiealequalizationalgorithmsarefinishedandsummarized，ineludingsimulationofthenewTurboequal龍er.2.P峨icularstudyofblindequalizationalgo

9、rithm.ComPuterexPerimentsofthetyPiealblindequal讓ershavebeenfinished，suehastheeonstantmodulusalgorithm(CMA)e叨alizerhigherderequalizeL3.ProPosedanewCMAequalizationsuPPortedbyadaPtiveconvexcombinationtheory.Byutilizingthene

10、wdevelOPmentsofadaPtivesignalProeessingfield，ournewalgorithlneangetridofthecomPromiseinchoosingdifferentsteP一siZes，thushasfasterconvergeneerateandbettersteady一statePerformanee，which15confirmedbythesimulationexPeriments.4

11、.PresentedahybridstructureofMMSEblindequalizationstrategy.TheoPtlin往ationtheory15introdueedinthisalgorithmtoeombinetheadvantagesoftwodl月免reniMMSEequalizers.Asaresult，ournewalgorithmhasoutstandingPerformance，which15verifi

12、edbyexPerimentsindifferenteircumstances.5.lmPlementedthenewalgoritllnsintheADSP21160basedPlatfm，whichPresentstheimPlementingexPerieneefaPPlieationofthesealgorithmsineommereialwirelessteleeonnunieationsystems.眾ywords:Adap