运动无线光通信光接收技术的研究

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1、上海大学硕士学位论文运动无线光通信光接收技术的研究姓名：俞起帆申请学位级别：硕士专业：通信与信息系统指导教师：王廷云20090101上海大学硕士学位论文信中断现象是必须要避免的。再次，论文在测试轨道振动的基础之上确定了发射天线的发散角，保证在运动中光接收天线都能接收到光信号。为了解决像点偏移引起的光通信中断问题，论文提出了一种基于实心光锥的空间光接收方案，对该接收方案进行了详细理论分析和光接收实验。通过在接收透镜焦平面上放置实心光锥，增大焦平面上的接收范围，提高系统对振动的应对能力。在实验过程中，重点分析光锥的集光性能，动态范围和出射光能分布等参数。并对基于实心光锥的光接收系统进

2、行了详细阐述和实验，给出了光锥的理论模型和测试方法，进行了现场实验测试。研究和实验结果表明，文中提出的运动无线光通信系统是完全可行和非常有效的。论文最后是本课题工作的总结和展望。关键词：运动无线光通信，光学天线，光学设计，光锥，视场角VI上海大学硕士学位论文ABSTRACTWirelessOpticalCommunications，alsocalledFreeSpaceOptical(FSO)Communications，refertothetransmissionofmodulatedinfraredlaserbeamsthroughanatmosphere．Itcombine

3、stheadvantagesofopticalcommunicationswithwirelesscommunications，providesfast，lowcost，safeandeffectivereCallStobroadbandaccessmeans，andhastheabilitytoachievehigh-speeddata,voiceandvideotransmissionbusiness．Recently,thewirelessopticalcommunicationhasachievedagreatprogressasthedevelopmentofthese

4、miconductortechniqueandopticalfibercommunication．TheresearchesinwirelessopticalcommunicationsabroadhavealreadysteppedintotheIndustrializationperiod．TheirproductsCOVerfromsatellitecommunicationdomaintothecivilfield．Manybigcompaniesandlaboratorieshavecardedontheresearchonwirelessopticalcommunic

5、ation．Manytelecommunicationcarriershavealsostartedtoapplythewirelessopticaltechniquesinthenetworkconnectionsandprovideallpossiblenetworkservicesforusers．Comparedwiththem，domesticdevelopmentinthisareaismuchweaker,butalongwiththeprogressinscienceandtechnology,wirelessopticalcommunicationalsogra

6、duallyprogressesfromfundamentalresearchtocommercialization．Basedontheprincipleofthewirelessopticalcommunications，thisthesisanalyzesthefeasibilityofmobilewirelessopticalcommunications(MWOC)alonglinearorbit．Aimatthecharactersofthelinearmotilitybetweenthemobiletransmitterandfixedreceiver,趾optica

7、lreceivingsystemispresentedbasedonanopticaltaperforitsfinelightcollectionproperty．Aftersummarizingthebackgroundofwirelessopticalcommunication，thethesisintroducesthedesignprinciplesofopticalantennasinthesystemwithanemphasisontheprinciplesofopt