光載射頻通信系統(tǒng)中光生毫米波矢量信號傳輸技術研究.pdf

1、西安電子科技大學碩士學位論文光載射頻通信系統(tǒng)中光生毫米波矢量信號傳輸技術研究姓名：王方艷申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：文愛軍201112AbstractElectricfieldprocessmicrowavesignalmOltandmolldifficult、Ⅳitlltheincreaseofthecommunicationcapacityandimprovethecommunicationfrequencyfi

2、ommicrowavetomillimeterwaveInadditiontheelectromagneticradiationhasabiginfluenceonhumansecuritySothetraditionalelectricfieldprocessmicrowavesignalhasbeendifficulttomeetthedevelopmentrequirementsofthenewtechnologyRadioOve

3、rFiber(ROF)isatechniquPtomodulatewirelesssignalsonopticalwav@totransmitwirelesssignalsItisthephysicalimplementationtechnologywhichcombinestheadvantagesofwidebandwidth，lOWlossandimmunetoEMIofthefiberopticalcommunicationsa

4、ndtheadvantagesofaccessflexibilityandmobilityofthewirelesscommunications，andhasbecomea0idealsolutiontosolvelargecapacityhighbandwidthandmobilityOpticalmilli。meterwavegenerationisoneofthemostkeytechniquesoftheROFsystemThi

5、spfiperfocusondiscussingthewaytogeneratetheopticalmillimeterwavesignal，mainlyincludestwoaspects：thefirstistheanalysisofseveraltraditionalmodulationmethodsDSB(doublesidebandmodulation)，SSB(signal—sidebandmodulation)andD；S

6、BCS(carriersuppressionDSB)based’onLN—MZmodulatoLtheoreticalanalysisandcomputersimulatiOIlSthesemodulationschemesThesecondiStlleanalysisofthetraditionalmodulationsystemstransmitevectorsignalwhichapplystowirelesscommunicat

7、ionexistingphasedistortion，andproposestwosolutionstosolvemillinieterwavevectorsignalphasedistortionOn毛iswiththemethodofseparationsubcarriertomodulatedataononesidebandandtheothersidebandwithnodatatheoreticalanalysisandcom

8、putersimulationshowthatthemillimeterwavevectorsignalgeneratedbyphotodiodedetectioncanavoidphasedistortionTheotheriSwithfiltersfilteroutsomesidebandsonlyleavingonesidebandwithdataandonesidebandwithoutdatatoavoidphasedisto

9、rtionThetheoryanalysisandsystemsimulationprovethesetwomethodshavegoodtransmissionperformanceSimulationresultsshowthatthesetwonovelmodulationschemeCannotonlygenerateopticalmillimeterwavesignalwithfrequencyquadruplingandfr

10、equencyquintuplingbutalsomodulatevectorsignalsononesidebandwithnophasedistortionorconstellationoverlappingonthemillimeterwavesignalatthereceiverThesetwomodulationschemeshaveshownagreatpotentialintheROFlinkKeyword：RadioOv