德国APS审核-通信工程主要课程介绍

CourseDescriptionsComputerNetworkBThemajorcontentsincludecomputernetworkprotocolsandarchitecture,OSImodel(applicationlayer,presentationlayer,sessionlayer,transportlayer,networklayer,datalinklayer,physicallayer).i.e.OSImodelCircuitAThiscourseincludestheintroductionofthebasicelementsincircuit,suchasCapacitorandInductance.Andsomelawsandtheoremsinanalyzingthecircuit,includingKirchhoff’sCurrentLaw,Kirchhoff’sVoltageLaw,SuperpositionTheorem,Thevenin’stheoremandNorton'stheorem.i.e.KCLKVLAnalogElectronicTechnologyInthiscourse,wemainlylearnandanalyzeDiodeandBipolarJunctionTransistor.Themostfunctionofadiodeistoallowcurrenttoonlypassinonedirection,it’salsocalledrectification.AndthecommonfunctionofBJTistoamplifysignals.(pics)i.e.detailsaboutDiodeandBJTDigitElectronTechnologyInthiscourse,wemainlylearntheLogicGateandsomecommonchips.AlogicgateisaphysicalmodelofBooleanfunction,thatis,itperformsalogicaloperationononeormorelogicinputsandproduceasinglelogicoutput.i.e.NOTANDORNANDNORXORXNOR…Gate(pics)Somechipstoachievedifferentlogicfunctions.i.e.74LS148(8-3encoder)74HC138(3-8decoder)74HC151(data-selector/multiplexer)ElectromagneticFieldsandMagneticWavesThemajorcontentsincludeElectromagneticFields,ElectromagneticWaves,Faraday’sLaw,Ampere’sLawwithMaxwell’sCorrection,Gauss’sLawforElectricFieldandforMagneticField,Maxwell’sEquations.Welearnthiscourse,becausethesignalstransmittedaselectromagneticwaveinmedium.i.e.ElectromagneticFieldsElectromagneticWavesMaxwell’sEquationsSignalandSystemsThemajorcontentsincludesignalprocessingandmathematicstoolsusinginsignalprocessing.Signalscanbedividedintoanalogsignalsanddigitalsignals.Sothereare2waystoprocesssignals:AnalogSignalProcessingandDigitalSP.Inthiscourse,theanalogSPisthemainpart.”Analog”indicatessomethingthatismathematicallyrepresentedbyasetofcontinuousvalues.Itdiffersfrom“Digital”whichusesasetofdiscretevaluestorepresentsignals.However,analogsignalisveryeasytobeaffectedbynoise.Inthiscourse,Ialsolearnsometoolsinanalogsignalprocessing,Convolution,FourierTransformandLaplaceTransform.i.e.ConvolutionFourierTransformLaplaceTransformDigitalSignalProcessingMostoftime,weusecomputerstoprocesssignals.Butcomputerscanonlyprocessdiscretesignal.Soweneedtoconvertananalogsignaltoadigitalsignal,including2steps:SamplingandQuantization.AndSamplingisaccordingtoNyquistSamplingTheorem.Besides,wealsolearntoolsindigitalsignalprocessing,DiscreteFourierTransform(DFT),ZTransform,FastFourierTransform(FFT).Finally,welearnsomebasicknowledgeaboutfilters,suchasFIRfilter,andIIRfilter.i.e.SamplingandQuantizationNyquistSamplingTheoremDiscreteFourierTransform(DFT)ZTransformFIRIIRHighFrequencyElectronicCircuitsHighFrequencyElectronicCircuitsisthefoundationofcommunicationsystem,especiallythewirelesscommunicationsystem.Thecircuitfortransmittingandreceivingradiosignaliswidelyusedincommunicationsystem.ThenIwanttoshowyouadiagramofthetransmitterandreceiversystem.IwilluseAMtogiveanexample(pics).PrincipleofCommunicationThemajorcontentsincludethegeneralmodelofacommunicationsystem,suchasthesourceandthechannel(channelcapacity,channelmode).Theperformanceindexofcommunicationsystem,includingvalidity(Asforthevalidity,it’sBitrateorSymbolrate,orBandUtilizationRate)andreliability(Asforreliability,inanalogcommunication,it’sSNR;whileindigitalcommunication,it’sBitErrorRate)TypesofModulation.SourceandChannelCode.ISIandtechnologiestocountertheISI.NyquistRulesi.e.GeneralModel(pics)SpeedofbitsorsymbolsSNRChannelCapacityAnalogCS[AM(DSBSSB),PM,FM)]DemodulationDigitalCS[baseband,band-pass,ASK,FSK,PSK,AMI,HDB3,CMI,Manchester)ISI(NyquistRules,Equalizer,ControllableISI)]CodeDataCommunicationThemajorcontentsfocusonthebaseprincipleofdatacommunication,includingBasebandCommunicationandBand-passC.Besides,alsothetechnologiesofdatatransmission,suchasMultiplexing(includingFDMTDMWDMCDMSDM),PacketSwitchingandChannelCoding,i.e.Multiplexing(FDMFDM)PacketSwitching(ConnectionlessVSconnection-orientedX.25)ModernCommunicationNetworkandSwitchingTechnologyMostimportantknowledgeofthiscourseisswitchingnetwork,including3parts.Thebasiccomponentofswitchingnetworkisswitchingelement,includingSpaceSwitchandTimeSwitch.AndSwitchingTechnology:CircuitSwitching,PacketSwitching,ATMSwitchingandIPSwitching.AlsotheSignaling,it’susedforsignalstocontrolcommunications.i.e.SpaceSwitchandTimeSwitch(pics)CircuitSwitchingvsPacketSwitchingConnectionlessvsconnection-orientedATMvsIPSignaling(ChannelAssociatedSignalingvsCommonChannelSignaling)PrincipleofAntennaeThemajorcontentsincludebasicconceptofantenna.It’sanelectricaldevicewhichconvertselectricpowerintoradiowaves,orthereverseprocess.It’susuallyusedwitharadiotransmitterorreceiver.Antennasgenerallyfallinoneoftwocategories:OmnidirectionalandDirectional.Andalsoparametersofantenna,likeRadiationImpedance,InputImpedance,EfficiencyDirectionCoefficient,GainCoefficient,Effectivearea,Polarization.i.e.RadiationImpedanceEfficiencyDirectionCoefficient(pics)GainCoefficientEffectiveareaElementsofMicrowaveEngineeringThemajorcontentsinclude3parts,thebasicconceptsofm