基于ECMA-368標(biāo)準(zhǔn)的超寬帶系統(tǒng)的均衡與編譯碼技術(shù)及Verilog實(shí)現(xiàn)的研究.pdf

1、東南大學(xué)碩士學(xué)位論文基于ECMA368標(biāo)準(zhǔn)的超寬帶系統(tǒng)的均衡與編譯碼技術(shù)及Verilog實(shí)現(xiàn)的研究姓名：劇丹丹申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：信息與通信工程指導(dǎo)教師：畢光國(guó)20100302東南大學(xué)碩士學(xué)位論文AbstractShortrangewirelesstechnologywillplayakeyroleintheprogressofB3Gandnetworkintegrating，andUWBtechnologyjustfillsint

2、hegapbetweenexistingshort—rangewirelessnetworksandwirelesswideareanetworksItattractsmoreandmoreattentionbyitscombinationwithOFDMtechnologyinimplenmentationschemeECMA368，theinternationalhighrateUWBstandard，willpromotethes

3、tandardizationandpracticalityofUWBtechnologyThemainworkofthisthesisisimplenmentationofUWBsystemdefinedinECMA368，includingequalizationandcodectechnologyTakingaccountoftheparametersofthesystem，somerelatedalgorithmswhichhav

4、egoodperformanceontheresourceandfrequencyareselectedandimplementedbyVerilogHDL(HardwareDiscriptionLaguage)FollowingtheintroductionofbackgroundanddevelopmentofUWBtechnologythethesissummarizestheerrorcontrolinOFDMsystemand

5、theMB—OFDMUWBsystemschemedefinedinECMA一368CodectechnologyisinvestigatedinchapterIIIECMA368adoptsconvolutionalcodeandReedSolomoncodeaserrorcorrectioncodeAsthefrequencyofViterbidecodercall’tsatisfythedemandofsystem，aACSuni

6、tutilizingRadix4butterflyoperationisneeded；apolynomialmultiplicationisappliedinsteadoflookuptablemultiplicationinthedesignofRSencoderRSdecodercomprisesPGZalgorithmforsolvingKES，ChienalgorithmforsearchingtherootofKES，andF

7、ornryalgorithmforcomputingerrorvalueChapterIVanalyzestheequalizationanddemodulationinUWBsystemafteradoptionofdiversityAccordingtomanysimulations，MRequalizationismoresuitableforQPSKHowevertheDCMsystemwillhaveabetterperfoa

8、manceifaCSIaidedequalizationisselectedAtlast，theimplementationofsystemschemewithVerilogHDLisintroducedTaking533Mbpsforexample，thisthesisdesignstheothermodulesintheschemeKeywords：MBOFDMUWB，ECMA一368，Viterbi，RSdecoderequali