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:(JB0201):2002-11-1521120041:1006-9348(2004)01-0041-03C4ISR1,2,2(1.,430010;2.,100039):C4ISR,C4ISR,C4ISR:;;:TP391.9:A1C4ISR,:1)C4ISR,,,(),,,;,,2),,,3),,,,,4),C4ISR,,,,,5),,6),C4ISR,,,7),,,,,,,,C4ISR,C4ISRC4ISR,,,,,C4ISR,C4ISR,C4ISR2C4ISR,C4ISR,:,,,,,C4ISR,C4ISR:14©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1)C4ISR,2),3),4),UHFVHF5),,6)33.1,,,,,,,113.2,,1,1,41VHFUHF11232123124123516123.3,,:,;;,,,M/M/1,:,,,;,,(FIFO);,,,M/M/1,Ws(-),:F(Ws)=1-e-(-)Ws:f(ws)=(-)e-(-)Ws:Ws=E(ws)=1-,,:,;,,C4ISR,:,6:24©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3(17)1);2);3);4);5);6),12,:P(1)k=(1t)kk!e-1tP(2)k=(2t)kk!e-2tk:Pk=[(1+2)t]kk!e-(1+2)t1+22,,,,,,,1,0.1,2,Ttotal:Ttotal=Tprep+Tqueue+Txmit+Trecv:Tqueue,2;Tprep;Trecv;Txmit,:Txmit=3433,(CommunicationManager,CM)(CommunicationArchitecture:CA)CMCA,BSEBSE,,,,,:()()CABSE,CA(:),BSE,BSE1,BSE2BSE3BSE1CMCA,CABSEBSE,,BSE1BSE3,VHFBSE2,T2T3,CAT2T3,BSE3BSE25C4ISR,C4ISR,,C4ISR,34©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,Web3D:[1]AndreaLAmes,.VRML[M].:,1998.[2]JoeGredecki.TheVirtualRealityProgrammersKIT[M].:,1998.[3]KennechRCastleman.DigitalImageProcessing[M].:,2002.[4]BoHuang,HuiLin.GeoVR:aweb-basedtoolforvirtualrealitypre2sentationfrom2DGISdata[J].Computers&Geosciences1999,(25):1167-1175.[5]AndreasDisch.Vipera3D-modelingandvisualizationtoolkitforWeb-baseapplications[J].ComputerNetWorksandISDNSystems1998,(30):626-6281[6].[M].:,2001.[7].VC++[M].:,2001.[8]Woo.OPENGL[M].:,2001.[9],.VRML[J].,2001.[](1979-),(),,,;(1943-),(),,,,,;(1974-),(),,,,TheStudyofHumanoidModelingBasedonVRMLLIUYi-jin,WANGRu-chuan,WANGHai-yan(DepartmentofComputerScienceandTechnology,NanjingUniversityofPostandTelecommunication,NanjingJiangsu210003,China)ABSTRACT:WiththedevelopmentofNetwork3D,thereisagreatneedofaddinghumanactivityintheOnlineVirtualenvironment,whichisthemostfrequentlyhappeningelementofrealworld.ThispapergoesdeepinsidethespecificationofH-anim(TheHumanoidAnimationSpec2ification)aboutitscontentsandrelationshipwithMPEG4,andgivesanexampleHumanoidmodel,anHumanoidmodelingsoftwarerealizationusingmixedgraphicsandimagesmodelingmethod.KEYWORDS:Virtualrealitymodelinglanguage(VRML);H-anim;Mixedmodelingofgraphicsandimage;Modelingtool(43):[1].[M].:,1999-9.[2]LisaANorris.ModelingC3:TheEffectivesOfInformationDelayInTacticalTIC-TAC-TOE[R].AD-A255142,June1992.[3]InsubShinandAlexanderHLevis.PerformancePredictionofaNetwork-CentricWarfareSystem[C].Proc.of2000CommandandControlResearchandTechnology,June26-28,2000.[](1966-),(),,,,:;(1966-),(),,,,:;(1947-),(),,,,:CommunicationsModelinginC4ISRSimulationSystemDAIJian-wei1,CHENShao-qing2,JIANGXiao-yuan2(1.CommandingCommunicationsAcademy,WuhanHubei430010,China;2.BeijingInstituteofElectronicSystemEngineering,Beijing100039,China)ABSTRACT:CommunicationsystemisphysicalfoundationensuringinformationseamlesslyflowinginC4ISR.Itisverydifficulttoconstructahighprecisioncommunicationsmodel.ThepaperanalysesthedemandofC4ISRsimulationsystemoncommunicationsmodels,proposesamethodofcommunicationsmodelinginC4ISRsimulationsystem.KEYWORDS:Communicationsystem;Modelingandsimulation;Communicationmodel71©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.