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MSTTOctober2009eatruesF····························UWBUWBUWBUWBDS-UWBOFDMUWBMB-OFDM-UWB。UWB、。UWB。UWBAbstractThedevelopmentofUWBtechniqueanditsstandardizationareintroducedinthispaper.TheschemesofpulseUWBandmulti-bandUWBaswellastheirkeyrealizationtechniquesarealsoanalyzed.UWB,withitscharacteristics,canbeap－pliedinshort-rangewirelesscommunication,posi－tioninganddetection.Incombinationwithothernewtechnologies,UWBhaswiderapplication.KeyWords:UWB,PulseUWB,Multi-bandUWB,cognitiveUWB12121212UWBUltra-Wideband、。“”、。UWBUWB。UWB、。1UWB1.1UWBUWB。UWBUWBHertz1887。20023.1GHz-10.6GHzUWBUWB。、。2006UWB。220081212UWBUWB、、。、UWB620091010ODERNSCIENCE&TECHNOLOGYOFTELECOMMUNICATIONSM····························12345678910GHz-85-708.55-41.36.0-704.84.2-80-70DAA1UWB。1.2UWBFCCUWB()0.2500MHz。10dB。UWB3.1GHz-10.6GHz。UWB。1UWB。UWBIR-UWBImpluseRa-dioUWB。UWB、、、、、、、。DS-UWBUWBDirectSpreadUWBUWB。IntelUWB———WiMediaOFDMUWBMB-OFDM-UWBMulti-BandOrthogonalFrequencyDivisionMul-tiplexingUWB528MHzOFDMUWB。CMOS。1.3UWBUWBUWB。2002IEEE802.15.3MB-OFDM-UWBDS-UWB。UWB。20061IEEE802.15.3。20073WiMediaMB-OFDM-UWBISOUWBDS-UWBDS-UWBUWBBelkin“Cable-FreeUSB”。WiMediaMB-OFDM-UWBUSB。200811WiMediaUWBWiQuestIntelUWBMB-OFDM-UWB。20093WiMediaMB-OFDM-UWBUWBSIG、USBWirelessUSBPromoterGroupUSBUSB-IF。WiMedia。UWBUWB。2UWBDS-UWBMB-OFDM-UWBUWB。2.1DS-UWBDS-UWB。7MSTTOctober2009eatruesF····························01234Time[s]×10-86420-2-4-6×10-3Amplitude[V]-4-3-2-10123410.80.60.40.20-0.2-0.47654321[V2/Hz]0246810×109[Hz]×10-62abcDS-PAM-UWB 3MB-OFDM-UWB。2a、b。、。:(PAM)、(PPM)/TH/DS-BPSK。2cDS-PAM-UWB。[1,0]210PAM。DS-UWBUWB。UWB,UWB。UWB,UWB。DS-UWB。DS-UWB。7.5GHzDS-UWB3.1GHz5GHz。DS-UWB。。2.2MB-OFDM-UWBMB-OFDM-UWB。33.1GHz-10.6GHz14Band528MHz128OFDM4.125MHz。145BandGroup。4a,b。MB-OFDM-UWB5.8GHzWLAN。MB-OFDM-UWB、。。、。MB-OFDM-UWB820091010ODERNSCIENCE&TECHNOLOGYOFTELECOMMUNICATIONSM···························· 33.23.43.63.84×109[Hz]10-1010-1210-1410-1610-1810-20 00.511.522.53×10-7Time[s]0.150.10.050-0.05-0.1-0.15-0.2V4(a)MB-OFDM-UWB(b)A／DUWB。MB-OFDM-UWBOFDM。MB-OFDM-UWBOFDMDS-UWBDS-UWB。2.3UWBUWBUWBDS-UWB、UWB、UWB。UWB。1DS-UWBMB-OFDM-UWBOFDM。DS-UWBUWBDS-UWB。UWB:·UWB····。UWB:SSAsoftspectrumadapta-tion。,SSA。SSA。2UWBUWBUWB。。IEEE802.15.4a4。UWB。。DS-UWBMB-OFDM-UWB。UWB。3UWBUWB9MSTTOctober2009eatruesF····························、。UWB、、、。、。3UWB、、。3UWBUWB3、、、、、、、。UWB。、、、UWBFCCEIRP-41.3dBm/MHz2GHz。UWBUWB。UWB。UWB。UWBUSBUSBUSB。UWB、、、、、、、。UWBUWB。UWB24GHz。4UWBUWBUWBUWB(CRcognitiveradio)UWB。4.1CR。CRUWBCRUWB。。CRUWBUWB。4.2UWB、、。GPS、。UWBGPS。UWB1810MSTTOctober2009eatruesF····························GERAN／UTRAN/cdma20001X。3GPPIMSSR-VCCIMS。IMSSR-VCCIMS。5LTE/EPC。LTEE-UTRAN/UTRAN、CDMA2000/E-UTRAN、GSM/UTRAN/E-UTRAN。CSLTE/EPC。VoLGAIMSVCC。13GPPTS23.272V8.3.03rdGenerationPartnershipProject;Techni-calSpecificationGroupServicesandSystemAspects;CircuitSwitchedFallbackinEvolvedPacketSystem;Stage2(Release8)23GPPTS24.301V8.1.0(2009-03)3rdGenerationPartnershipPro-ject;TechnicalSpecificationGroupCoreNetworkandTerminals;Non-Access-Stratum(NAS)protocolforEvolvedPacketSystem(EPS);Stage3(Release8)33GPPTS23.401V8.5.03rdGenerationPartnershipProject;Techni-calSpecificationGroupServicesandSystemAspects;GeneralPacketRadioService(GPRS)enhancementsforEvolvedUniversalTerrestrialRadioAccessNetwork(E-UTRAN)access(Release8)4VoLGA-RequirementsV1.1.1(2009-02)VoiceoverLTEviaGenericAccess;RequirementsSpecification;Phase15V.o.L.G.A.Stage2V0.2.0(2009-04-29)VoiceoverLTEviaGenericAccess;Stage2Specification;Phase16LTEMSTT10。“863”UWBUWBUWBDC-OFDM-UWBOFDM-UWBMMBOKM-aryBi-OrthogonalKey)UWBSC-UWB。2009DS-UWBMB-OFDM-UWB。5UWBUWB。UWB。DS-UWBMB-OFDM-UWB。UWBUWBDS-UWB。UWB。、UWB。UWB。1Maria-garbriellDiBenedetto,GuerinoGiancola.UnderstandingUltraWideBandRadioFundamentals.PRENTICEHALLPTR.20042...20073.UWB..200954.UWB..200775.-UWB..20089MSTT18