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SystemViewTurbo1,2,2(1.100094;2.100416):SystemView,Turbo,。,SystemViewTurbo,。:;SystemView;Turbo;Matlab:TP391.7:A:1004373X(2006)1301203ASimulationStudyUsingSystemViewtoImplementTurboCodeinCommunicationSystemYUEZheng1,YANGWenge2,WANGXiaohong3(1.BeijingAerospaceCommandControlCenter,Beijing,100094,China;2.AcademyofEquipmentCommandandTechnology,Beijing,100416,China)Abstract:Inthispaper,asystematicandcircuitleveldynamicsimulationmethodisdiscussed.UsingtheSystemViewassystemsimulationplatform,thesimulationmodelinganditsperformanceanalysisofTurbocodearetalkedindetailinsatellitecommunicationsystemapplication,atthesametime,somekeyissuesinimplementaryprocessarestressed.Itistestifiedthatmergingthenewbasicresearchaccomplishment,suchasTurbocode,intotheengineeringpracticalsimulatingmodelisfeasiblebyutilizationofSystemViewdynamicsimulationsoftwaresystem.Bythisway,anewcluetomaketheengineeringsimulationstudyrunonthehigherlevelispointedout.Keywords:systemsimulation;SystemView;Turbocode;Matlab:200602151,,。SystemView、,Matlab。Matlab,,SystemView,。,、。Turbo。Turbo,TurboMatlab,SystemView,MLinkMatlab。2,1,dk。BPSK,(AWGN)。13TurboTurbo(PCCC),,,,。Turbo、、,(RSC)。Turbo/、。21SystemViewTurbo,,,。2Turbo3Turbo4Turbo4.1。SystemView,,。MLinkMatlab。Turbo,3,、TurboRSC。4PN(0),(1)。BPSK,xkCk[1]:xk=Eヘs(2ck-1)(1):Es。4Turbo(17):-1+(2x)(1),,,。14,15,16。,R(80)ys,1y1p2y2p,3Lc[1](21,22,23)Turbo。Turbo(102)。5,(2)RSC1(),RSC1csc1p,cs(97)RSC2,RSC2c2p,3(75)(cs1c1p1c2p1cs2c1p2c2p2…)。RSC1RSC2(2,1,3),Turbo[1]:R=R1R2R1+R2-R1R2=1/2×1/21/2+1/2-1/2×1/2=1/3(2)Turbo,。5Rate=1/3Turbo6Turbo,(2,1,3)RSC:%=g1g[]2=111[]101=(7,5)(3)RSC(50,52,62,67),(49,51,53,66),(48),(1),。6G=(7,5)(2,1,3)RSCTurbo7,DEC1()DEC2MLinkMatlabLogMAP()[1～3]。DEC231200613228ΔΔDEC1。7Turbo4.2,,:30b4.8kb/s,1/3Turbo3×4.8=14.4kHz,46.25×10-3s。:fs≥2fm,10,,。Turbo,,,。SystemView,,Turbo/;,,。MLinkTurbo,SystemViewMLinkMatlab,,。4.3,,。8,Turbo,Tur-bo。40ms,。8()(),1/3,(7,5)Turbo(2,1,3)(BER),TurboLogMAP,Viterbi。BER,131072,7,Turbo9。,,,,Turbo;,Turbo。,,。9TurboBERSNR5Turbo、。SystemView,Turbo,。,,,SystemViewTurbo,。[1].Turbo[M].:,2004.[2]BerrouC,GlavieuxA,PunyaThitimajshima.NearShannonLimitErrorCorrectingCodingandDecoding:TurboCodes[A].IEEE,1993,2:10641070.[3]BerrouC,GlavieuxA.NearOptimumErrorCorrectingCod-ingandDecoding:TurboCodes[A].IEEETransactiononCommunications,1996,44(10):12611271.[4]DivsalarD,PollaraF.MultipleTurboCodesforDeepSpaceCommunications[A].TDAProgressReport42121,1995.6677.[5],,.Turbo[J].,2006,29(3):5153,56.(17)41SystemViewTurbo:150MHz,3km,6m。[1],40º～180º,();,。。。,2,8SVM。:SVMBP,15dB90%,SVMBP2～3。2HRRP,,1。1BPSVM(%)“|”“V”“”“”BP0º～45º10010010097.8399.4645º～90º10010084.7886.9692.9390º～135º10091.384.7878.2688.59135º～180º10084.7886.9697.8392.93SVM0º～45º10010010010010045º～90º10010086.9695.6595.6590º～135º10091.386.9676.0988.59135º～180º10096.6595.6510097.83,90º～135º。4BPSVM,。,,SVMBP;SVMBP,HRRP。[1].[D].:,2001.[2]LiYing,RenRong,ShanXiuming.RadarHRRPClassifica-tionwithSupportVectorMachines[J].InfotechandInfonetProceedingsBeijing2001InternationalConferenceson.2001,1(29):218222.[3]LiYing,RenYong,ShanXiuming,etal.AircraftHRRPClassificationBasedonRBFNN[J].2001CIEInternationalConferenceonProceedings,2001.471474.[4]WangXiaodan,WangJiqin.SupportVectorMachineforHRRPClassification[J].SignalProcessingandItsApplica-tions,2003.Proceedings.7thInternationalSymposiumon,2003,1(14):337340.[5],,.[M].:,1992.[6],.[M].2.:,2002.[7]ChihChungChang,ChihJenLin.LIBSVM:ALibraryforSupportVectorMachines[R].TechnicalReport,Depart-mentofComputerScienceandInformationEngineering,Na-tionalTaiwanUniversity,2005:～cjlin/.[8]ChihWeiHsu,ChihChungChang,ChihJenLin.APracticalGuidetoSupportVectorClassification[R].TechnicalRe-port,DepartmentofComputerScienceandInformationEn-gineering,NationalTaiwanUniversity,2001:～cjlin.,1979,。9999999999999999999999999999999999999999999999999999。(14)[6],.SystemView[M].:,2004.[7].Matlab6.5[M].:,2003.[8].[J].,2002,39(7):4043.,1973,,。。,1966,,,。,。,1973,,,。。71200613228ΔΔ