連續(xù)相位調(diào)制的格狀編碼調(diào)制技術(shù)（TCM-CPM）算法研究及實(shí)現(xiàn).pdf

1、浙江大學(xué)碩士學(xué)位論文連續(xù)相位調(diào)制的格狀編碼調(diào)制技術(shù)（TCMCPM）算法研究及實(shí)現(xiàn)姓名：許婧申請學(xué)位級別：碩士專業(yè)：通信與信息工程指導(dǎo)教師：陳文正趙民建20070501AbstractWiththedevelopmentofwirelesscommtmieationmoreandmolehigh一印ecdsystemsareneededtosarisfythemassivedatatransmissioninaudioandvideoar

2、easusnaUyWereachthegoalinthecostofmolebandwidthUnhic虹lybandwidthb∞omesanotherkeyprobleminwirelesscommunicationbecaul∞ofthelackofavailablebandwidthreso㈣Asaresultweshouldconsiderbalancingtheefficiencyandthereliabilityandde

3、signthehigh—speedcommunicationsystemsinlimitedtransmissionbandwidthwhichc∞getthehigheffectiveinformationrateinlimitedtransmissionbandwidthTrellisCodedModulation(TCMlwitllredundantsignalsetspioneeredbyGUngerboeckhasbeenla

4、rgelyusedforthedigitaltransmissionoverbandlimitedchannelsItevolvedoverthepastdecadeasacombinedcodingandmodulationtechniquefordigitalmissionoverbandlimitedchannelanditsmain目比rac“oncOll他Sfromthefactthatitimprovesthereliabi

5、iit／ofdigitalcommunicationchannelswithoutcompromisingbandwidthefficiencyInthechapter3，formostapplicationsrequiringtransmissionofdigitaldataovernonlinearand／orfadingchannelacontinuousphasemodulation(CPM)isdesirablemoleand

6、morea8itsconstantenvelopeInordertoobtainafurtherimprovementhienergyefficiencyweproposedthecodedCPMschemeanditscombinationwithTCM，whichcanbeasolutionforthelongdistancewirelesscommunicationtechnolosywithhighspecmanefficien

7、cyhi曲powerefficiencyandlowreceivingthresholdInthechapter4Webasedontheeoheront／noncoherontdemedul撕onsystemsimulatedindetailthekeytechnologiesusedinthearithmeticInadditionthecombinationofTCMandCPMcannotutilizeunattacheddif

8、ferencecodingsimplytosolvetheproblemthatphaseoffseteanaedAsaresultinthispaperwedesignedarotationalinvarianeesystemofTCMCPMtosolvetheproblemUnderAWGNconditionthefloatingperformanceofTCM8CPMandTCM4CPMwel“eillustratedTheres

9、tpartsoftheessayfocusedonthedesignandrealizationofafourmodesystemofTCMCPMinwhich32stateconventionalTCM8CPM。32stateconventionalTCM4CPM16staterotafionalinvatinacoTCM一8CPMand16staterotationalinvarinaecTCM4CPMeneoder$Ⅵ啪consi

10、deredItfirstgaveapracticalstructoxcofTCM一8CPMenVAN]tH“andSoflViterbidecoderanditsrealizationwithFVGAthelogicstructureofencoderanddecoderwerediscussedInaddition，LUTandpipelinetechniquewereappliedinitThenwealsodescribedthe

11、∞hitionschemeforfourmodesystemofTCM—CPMAllthetimingdesignandthethnetionsimulatingresultsweregivenintheen正【keywords】：TCMUngerboeekcodehighspeedeommtmicationsystemsinlimitedtranmalssionbandwidth，CPM，maximumlikelihoodsequen