混沌激光中兩維信息的傳輸和混沌同步的優(yōu)先選擇.pdf

1、Ir782309荔糾犬學(xué)碩士學(xué)位論文(2005屆)混沌激光中兩維信息的傳輸和混沌同步的優(yōu)先選擇TheTransmissionofTwo—dimensionalMessagesandthePreferenceofChaoticSynchronizatjoninChaoticLasers研究生姓名周云指導(dǎo)教師姓名墨主登i墼絲2專(zhuān)業(yè)名稱研究方向論文提交日期光學(xué)量子光學(xué)2005年4月攫梵激光孛耨綞蔫基瓣輯贛和魏漣弱步鮑撬先選攆英文摘要Abstr

2、actThechaoticsynchronizationofanonlinearcoupledlasersystemandthedigitalcommunicationthroughchaoticsynchronizationareinvestigatedinthispaperFirstlythedigitalcommunicationoftwo—dimensionalmessagesusingchaoticsynchronizatio

3、nintwomultimodecoupledlasersisinvestigatedAnewschemeofmulti—channelcommunicationusingchaoticsynchronizationinamultimodelasersystemhasbeenproposed，Byintroducingthetimederivationoftheintensitydifferencebetweenthereceiveran

4、dthetransmittal，themessagescanhedecodedsnccessfuUyItisfoundthatonedigitcanbeencodedanddecodedononepulseatanylocationsincethewidthofthesignalismuchnarrowerthanthatofthepulseofthetransmitterToincreasetheefficiencyofutilizi

5、ngthepulseofthetransmitterthemethodofdecodingmessageshasbeenimprovedTherefore，severaldigitscanbeencodedanddecodedonasinglepulseIfdifferentheightofthesignalscanrepresentagroupofdifferentbinarybits，atwodimensionalmessagein

6、theformofamatrixcallbeencodedanddecodedcorrectlyonasinglepulseOurnumericalsimulationsofchaoticcommunicationinatwothreemodelasersystemshowsthatonedimensionaldatatwodimensionalinformationandastatictwodimensional穢ay—scaleim

7、agehavesuccessfullybeenUansmitted。鉚theseimprovementsonthemethodsofencodinganddecodingthemessagesnotonlythetransmissionratec孤beincreasedbutalsotheprivacycanbeenhancedgreatlyinsecurecommunicationusingchaoticmultimodelasers

8、Secondlythephenom髓loBofpreferenceofchaoticsynchronizationinalasersystemhasbeenanalyzedThephenomenonandtheruleofchaoticsynchronizationhaveattractedfultherinvestigationsduet0itspotentialapplicationsinmanyfieldsWestudyacou#

9、edlasersystemthatiscomposedofthreeboss—modulatedsingmodeNd：YAOlasersInthecoupledlasersystem，twoseparatelasersactaSthetransmitterswhilethethirdoneactsasthereceiverTheoutputsofthetransmitterlaserareinjeetedintothereceiverl

10、aserItmeansthatthereexistscouplingbetweenthetransmittersandthereceiverThenumericalsimulationsshowaninterestingphenomenonofthepreferenceofchaoticsynchronizationThechaoticsynchronizationbetweenthetransmittersandthereceiver