雙向HFC上行傳輸系統(tǒng).pdf

1、電子科技大學碩士學位論文雙向HFC上行傳輸系統(tǒng)姓名：譚望春申請學位級別：碩士專業(yè)：電子與信息工程指導教師：周東劉定林20061101電子科技大學碩士學位論文ABSTRACTTodayroadbanddataservicessuchasinternat，IPphoneandVODleadpeoplesculturelifetoanewunprecedentedstateandmadecommunicationandtheexchangem

2、orepleasurewiththebandwithincrement，longdistanceeducation，longdistancemedicaltreatmentinternetofficial，internetshoppingbecometrueth，followingisthelargerrequestofmarketforbroadbanddatatelecommunicationbusinessATM，xDSL，DDN

3、，CableModemCablephonebecomemOrcandmoreuserful，allkindsofwayisforthesamepurpose—tosatisfyincreasingneedofbroadband∞stomersCATVnetworkbecomeacompellingpowerfotitsproperboradcharaetelwitllthegraduallyopeningofchinesetelecom

4、marketitisaimportantmissionforChineseCATVoperatorhowtouseCATVnetworksOccupythecertainmarketquotainfastgrowingbroadtelecommunication，andthatisl】rgent，anditisnotdoubtmatterofthemomentforcawoperatortousefbroadHFCnetWktoProc

5、eedtoincreaseinvaluethebusinessTheHFCsystemsofduplexCATVfacesdeliveringsystemisanewnetwksdeliveryform，whichisformincreasingwiththeneedofCATVmcreasingValuebusinessandtherealismofsin#edeliveringsystemfacingtoreformcomplete

6、lytodoublefacesnetworksWiththelarge—scaledevelopmentandupdateOftheHFCnetworks，broaddatabusinessofHFCnetworksbecomemoreandmoreimportantcauseforpeopletochoicebroadbandbutrunningtelecommunicationbusinessonHFCnetworks，thefir

7、stistoresolvetechniqueproblemsoftheupbounddeliveringsystemthisarticleprimarilyaimstotheupboundofHFCduplexsystemsfacessystem，anddescribestheupboundsystem’Smodel，components，capacitycomposingandtechniquecharacterandhowtoadj

8、ust，howtodesignetcsuchmainaspectAndthisarticlealsosumupthebasicrequ錨tofadjllstanddesigntheupboundsystemCombiningtheactualengineering【Keywords]DuplextransmittingforHFC，Thenodeofunitgain，Carriel“tonoiserate，Uplinecolletion