Digital-Communication-题库-PPT课件PPT课件下载推荐.ppt
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DigitalCommunications,HanYuBingTel:
@#@84303169Office:
@#@TheEOEbuilding,RoomA311,ConsiderthethreewaveformspassingthroughanAWGNchannelwithpowerspectrumdensityofN0/2.
(1)Findthebasisorthonormalfunctionsforthesesignals;@#@
(2)Usethebasisfunctionstorepresentthethreesignalsbyvectors,andplotthesignalspacediagramsforthesesignals;@#@(3)Determinethreelikelihoodfunctions,andshowwhichprobabilityoferrorislargest.,7,8,10,SignalsofNon-linearModulationwithMemory,Whenmiseven,thefullresponseCPMsignalsphasestatesWhenmisodd,thefullresponseCPMsignalsphasestatesIngeneralcase,whentheCPMsignalsareM-arymodulationandpartialresponsewithdurationLT,Lispartialresponsewaveformmemorylength;@#@Misthenumberofsymbols,3.AssumedthereareMsignalssm(t),m=1,Mtobetransmittedwithequalenergyandprobability.ThedimensionalityofthesessignalsareN,andthechannelisAWGNchannelwithmeanzeroandvarianceN0/2.Thereceivedsignalisr(t).
(1)PleaseplotthestructureoftheoptimumreceiverundertheMAPcriterionandbrieflyexplainit.,11,12,19,LowpassbandwidthW/2=1350Hz,f1,K=1,L=1,Eq.(9.4-439.4-47),FinalExam,Writtenandopen-bookexamTime:
@#@TobedeterminedPlace:
@#@Tobedetermined,27,28,Thanksforyourattention!
@#@,