5、, structureandperformance studyofQAMmodulationanddemodulation systemparameters,simulationperformanceanalysisofSimulink modulationanddemodulationsystemofQAM; andtherealizationmethodof analogsignal digital basic theory indetail, realizethedifferenceof Simulinksimulationandperformance
6、comparisonof sub pulsecodemodulation; construction simulation source QAMtransmissionsystem basedonthetheory, and validationofsimulation andperformancemodeling usingMatlab/Simulink.Keywords:QAM;Quadratureamplitudemodulation;Differentialpulsecodemodulation;Modelingandsimulation目录第一章绪