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时间:2020-10-27
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1、Outline2012.6Chapter0ll Basicelementsofcommunicationsystems(p.2)ll Primarycommunicationresources(p.3)ll Themobileradiochannel(p.18)ll Blockdiagramofdigitalcommunicationsystem(p.22)ll Shannon’sinformationcapacitytheorem(p.23-24) Chapter1ll Definitionandbasic
2、conceptsofrandomprocessll Stationaryandnon-stationaryll Mean,correlation,andcovariancefunctions,themean-squarevalueandvariancell Theconceptofergodicprocessll Transmissionofarandomprocessthroughalineartime-invariantfilternn nn Themean,autocorrelationfunction
3、,andmean-squarevalueofYll Powerspectraldensitynn Definition(Equ.1.38)nn Input-outputrelation(Equ.1.39)nn Einstein-Wiener-Khintchinerelations(Equ.1.42,1.43)nn Propertiesll Gaussianprocess(Equ.80)ll Conceptofwhitenoisell Representationofnarrowband
4、noisenn Thecanonicalform(Equ.1.100)nn Propertiesofthein-phaseandquadraturecomponents(p.65-66)nn Representationusingenvelopandphasecomponents(Equ.1.105-1.107)nn BasicconceptsofRayleighdistributionandRiciandistributionll Uncorrelatedandstatisticallyindependent(p.58
5、)nn Uncorrelated:Covarianceis0nn Statisticallyindependent:definedbyjointprobabilitydensityfunction Chapter2ll Conceptsofamplitudemodulationandanglemodulation(FMandPM)ll AMnn AMsignal(Equ.2.2andFig.2.3),andtheamplitudesensitivitykann Conditionsofcorrectdetec
6、tion(p.90)nn SpectrumofAMwave(Equ.2.5andFig.2.4)nn TransmissionbandwidthBT=2Wnn VirtuesandlimitationsofAMll Linearmodulationschemesnn Thegeneralform(Equ.2.7)nn DSBuu DSBsignal(Equ.2.8andFig.2.5)uu SpectrumofDSBwave(Equ.2.9andFig.2.6)uu Coherentr
7、eceiveruu Basicknowledgeofcostasreceiveruu Basicconceptofquadrature-carriermultiplexingnn BasicconceptsofSSBandVSBll Conceptsofmixer(Fig.2.16)ll ConceptsofFDMll Definitionsofanglemodulationll FMnn A
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