多音頻短波信道模擬器的研究與實現(xiàn).pdf

1、華中科技大學碩士學位論文多音頻短波信道模擬器的研究與實現(xiàn)姓名：周卓明申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：袁巍20110109IIAbstractWiththeemergenceofwirelesscommunicationsystemnowadaysshtwavecommunicationisalwaysamaintechnologyininterstatelongdistancecommunication.Atthelat

2、erstageofthedevelopmentofshtwavecommunicationsystemsthetestprocedurealwaysfacestheobstaclesoftheproblemscausedbythetimevariationunpredictabilityofshtwavechannelswhichdramaticallydelaysdevelopmentprocedure.Howeverifthetes

3、tofthesystemweredoneinthelabatyconditionswiththehelpofthesimulatedshtwavechanneltheresearchdevelopmentperiodofthesystemshouldbedecreasedlargely.Thisthesisinvestigatestheacteristicsofmultiaudioshtwavechannelrelatedtopicsd

4、esignsasolutionfsimulatingthemultiaudioshtwavechannel.EspeciallyconsideringtheschedulingofmultipleaudioinputsthisthesisprovidesanIPC(IndustrialPersonalComputer)designwithmultiplesoundcards.Indertoreducethecomplexityinfol

5、lowingsystemtestshtenthedevelopmentlifecyclethiswkprovidesdetailedimplementationvalidatesthefeasibility.InthisprojectweproposethedesignofIPCwithmultiplesoundcardsaswellasthreeconditionsthataffectthemultiaudioschedulingst

6、rategy.ThenwedesignimplementthemultisoundcardIPCthatcanrecognizemultiplesoundcardsschedulethemefficiently.ThisthesisinvestigatesseveralwidelyusedshtwavechannelmodelsrespectivelysuchasWattersonHoffmeyerParallelsubbmodelet

7、c.WeimplementtheshtwavesimulatbasedonWattersonmodelachievethegoalofsimulatingtheshtwavechannelwithmultipleaudioinputs.AtlastweconductdetailedtestsfthemultisoundcardIPCshtwavechannelsimulat.Amountoftestdatavalidatesvariou