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1、本科毕业设计分布式信源编码理论及应用的研究loanapprovalandpostcreditapprovalofficer/atalllevelsinaccordancewithcreditapprovalrules,licensingandeventualexerciseofcreditdecisionpowerofpersonsorinstitutions.Reviewfindingsandreviewcomments,accordingtotheBank'scredit摘要无线传感器网络是一种全新的信息
2、获取和处理技术，与其他的无线网络相比，无线传感器网络中传感器节点的能量有限而且不能够实时更新，因此传感节点的信息处理能力和无线通信的容量都受到了很大的影响，为了克服这些限制，需要设计能耗较低的通信协议和算法，其中，在编码时采用分布式信源编码(DistributedSourceCoding，DSC)技术就是一种有效地解决方法。分布式信源编码利用多个信源之间的相关性，进行独立编码减少传送的信息速率，并通过联合译码提高信息传输的整体有效性。DSC技术的作为无线传感器数据传送中的关键技术，对于其研究也越来越成熟，而对
3、DSC的应用也扩展到了无线摄像机网络等领域，成为了一种具有高效压缩性和优秀译码性能的信源编码。本文就分布式信源编码算法与应用进行仿真研究。本文讨论了Turbo码在分布式信源编码中的应用，通过仿真来对Turbo码应用到分布式信源编码中的性能进行分析。关键词：分布式信源编码DSCTurbo码loanapprovalandpostcreditapprovalofficer/atalllevelsinaccordancewithcreditapprovalrules,licensingandeventualexerc
4、iseofcreditdecisionpowerofpersonsorinstitutions.Reviewfindingsandreviewcomments,accordingtotheBank'screditResearchontheTheoryandApplicationsofDistributedSourceCodingZhaoShuji(CollegeofEngineering,SouthChinaAgriculturalUniversity,Guangzhou510642,China)Abstra
5、ct:Wirelesssensornetwork,WSNisanewwirelessnetworkwhichIntegratessensor,embeddedcomputing,networkingandwirelesscommunicationtechnologytogatherandprocessinformation.Contrasttootherwirelessnetworks,thenodesinWSNispower-limited,thus,theinformationprocessperform
6、anceandthecommunicatingcapacityisgreatlyaffected.Toovercomesuchconstraints,alowpower-consumingcommunicationprotocoloralgorithmisneeded.UsingDistributedSourceCoding,DSCduringinformationencodingisoneoftheeffectivewaystosolvetheproblem.DSCreducesthetransmitted
7、ratebyindependentlyencodinginformationusingthecorrelationofsources,andimprovetheoveralleffectivenessofthewholetransmitprocessbyjointdecoding.AsoneofthekeytechnologyinWSNinformationtransmission,theresearchonDSCisgettingmoreandmoremulture,andtheapplicationofD
8、SCisalsoexpandingtotherealmssuchaswirelesscameranetworketc.,whichmakesitawildlyusesourcecodingwithhighcompressionrateandoutstandingdecodingperformance.Thisthesisfocusesontheresearchesondistributedsourc
