科技信息檢索課程檢索報(bào)告

30/30科技信息檢索課程檢索報(bào)告學(xué)院：計(jì)算機(jī)學(xué)院班級(jí)：001113班卓越3班姓名：繆思薇學(xué)號(hào)：00111313時(shí)間：2013.05.29科技信息檢索課程檢索報(bào)告計(jì)算機(jī)學(xué)院00111313繆思薇專題檢索標(biāo)題：中文：寬帶無線通信技術(shù)進(jìn)展英文：Advancesinbroadbandwirelesscommunicationstechnology數(shù)據(jù)庫名稱：中文：CNKI英文：EI檢索關(guān)鍵詞：中文：寬帶無線通信技術(shù)英文：broadbandwirelesscommunicationstechnology檢索式（綜合檢索式）：中文：寬帶and無線and通信技術(shù)英文：broadbandandwirelessandcommunications(w)technology檢索步驟：中文檢索：進(jìn)入檢索平臺(tái)西電圖書館網(wǎng)站→選擇中文數(shù)據(jù)庫CNKI中國知網(wǎng)→選擇高級(jí)檢索→輸入關(guān)鍵詞檢索式：寬帶并且無線并且通信技術(shù)→開始檢索→選擇檢索出的相關(guān)文獻(xiàn)并查看題錄和文摘英文檢索：進(jìn)入檢索平臺(tái)西電圖書館網(wǎng)站→選擇外文數(shù)據(jù)庫EI→選擇QUICKSEARCH→輸入檢索式broardbandANDwirelessANDcommunicationstechnology→開始檢索→選擇檢索出的相關(guān)文獻(xiàn)并查看題錄和文摘檢索出的相關(guān)文獻(xiàn)列表：1.超寬帶無線通信技術(shù)發(fā)展淺析邢茂柱科技與企業(yè)2013-03-06期刊文摘：隨著無線通信技術(shù)的飛速發(fā)展,無線通信技術(shù)在我國的應(yīng)用領(lǐng)域也在不斷擴(kuò)大,這就加快了我國現(xiàn)代通信向數(shù)字化時(shí)代邁進(jìn)的步伐。而超寬帶無線通信技術(shù)作為新型的無線通信技術(shù),實(shí)現(xiàn)了短距離的高速數(shù)據(jù)傳輸,滿足了人們對(duì)無線通信技術(shù)的新的需求。加強(qiáng)對(duì)超寬帶無線通信技術(shù)的研究,有利于進(jìn)一步推進(jìn)我國無線通信技術(shù)的發(fā)展。故此本文對(duì)超寬帶無線通信技術(shù)的概念及特點(diǎn)進(jìn)行了闡述,并對(duì)其應(yīng)用前景進(jìn)行了一定的分析。

2.淺談超寬帶無線通信技術(shù)的發(fā)展趙麗麗;王莉;蘇麗娜;鞠曉潔數(shù)字技術(shù)與應(yīng)用2011-03-15期刊文摘：無線通信在人們信息交流方面,發(fā)揮了巨大的作用。因此,無線通信是當(dāng)前發(fā)展最快的技術(shù)之一。超寬帶通信(UWB)是近年來通信領(lǐng)域興起的一種無線互連技術(shù)。3.面向智能配電網(wǎng)的寬帶無線通信技術(shù)的研究與應(yīng)用杜潔;龔宇2011年云南電力技術(shù)論壇論文集（入選部分）2011-11-15中國會(huì)議文摘：智能配網(wǎng)的發(fā)展對(duì)通信系統(tǒng)在傳輸速率、覆蓋范圍等方面都提出了更高的要求,同時(shí),我國是一個(gè)災(zāi)難頻發(fā)的國家,智能配網(wǎng)的通信系統(tǒng)需在應(yīng)急情況下實(shí)現(xiàn)快速部署、靈活組網(wǎng)。本文首先分析了智能配網(wǎng)通信系統(tǒng)的需求與現(xiàn)狀,在此基礎(chǔ)上,提出了常規(guī)通信和應(yīng)急通信場景下,LTE系統(tǒng)在智能配網(wǎng)中的應(yīng)用,進(jìn)一步地,研究了面向智能配網(wǎng)的LTE系統(tǒng)的組網(wǎng)方式和安全性因素。4.超寬帶（UWB）無線通信技術(shù)苗劍西安電子科技大學(xué)2004-01-01碩士文摘：超寬帶(UWB)脈沖通信是一種與其它技術(shù)有很大不同的無線通信技術(shù)，它具有通信容量大、輻射功率密度低，抗多徑干擾，結(jié)構(gòu)簡單和保密性好等優(yōu)點(diǎn)。利用UWB脈沖通信是對(duì)無線頻譜資源的利用進(jìn)行新的探索，它解決了困擾傳統(tǒng)無線技術(shù)多年的有關(guān)傳播方面的重大問題。這項(xiàng)新興技術(shù)對(duì)方興未艾的無線接入技術(shù)是一個(gè)有力的支持，因此需要深入研究并掌握這項(xiàng)技術(shù)。本文首先闡述了UWB脈沖通信系統(tǒng)的基本原理，重點(diǎn)介紹了用偽隨機(jī)碼跳時(shí)的PPM(脈沖位置調(diào)制)調(diào)制，分析了他的多址性能、系統(tǒng)容量和功率譜密度，在此基礎(chǔ)上研究了改進(jìn)性能的發(fā)射信號(hào)形狀和系統(tǒng)抗干擾能力，最后介紹了偽混沌碼跳時(shí)的多址方式。整個(gè)分析結(jié)合進(jìn)行了MATLAB仿真。

5.超寬帶無線傳感器網(wǎng)絡(luò)節(jié)能與中繼協(xié)作通信技術(shù)策略研究潘高峰西南交通大學(xué)2011-04-01博士文摘：為了滿足無線傳感器網(wǎng)絡(luò)(wirelesssensornetworks,WSNs)中無線數(shù)據(jù)傳輸服務(wù)質(zhì)量的要求,以及盡可能地消除惡劣的無線傳播環(huán)境對(duì)通信性能產(chǎn)生的影響,WSNs需要采用有效的節(jié)能策略和新的通信技術(shù)來保證可靠的服務(wù)、有效的覆蓋、高效的傳輸。功率控制策略通過控制減少傳感器節(jié)點(diǎn)的冗余功耗,可以有效地降低能量開銷,延長工作壽命而被認(rèn)為是一項(xiàng)高效的節(jié)能策略。無線中繼協(xié)作技術(shù)作為改善和提高無線通信性能的最有效手段之一,借助中繼站(或者中繼節(jié)點(diǎn))的轉(zhuǎn)發(fā)來改善無線信號(hào)的傳輸質(zhì)量,實(shí)現(xiàn)改善源信號(hào)強(qiáng)度較弱地區(qū)的覆蓋質(zhì)量以及對(duì)盲區(qū)的補(bǔ)充覆蓋,有效提高系統(tǒng)的吞吐量,特別是網(wǎng)絡(luò)邊緣用戶和盲區(qū)用戶的吞吐量。鑒于中繼協(xié)作通信技術(shù)在未來網(wǎng)絡(luò)中的重要地位和潛在的商業(yè)價(jià)值,工業(yè)界和學(xué)術(shù)界針對(duì)該技術(shù)已經(jīng)展開了廣泛深入的研究,其標(biāo)準(zhǔn)化工作也已經(jīng)取得實(shí)質(zhì)性的進(jìn)展。6.超寬帶無線通信技術(shù)研究進(jìn)展朱剛;劉瑋;蔣潺潺山西大學(xué)學(xué)報(bào)（自然科學(xué)版）2010-05-15期刊文摘：首先對(duì)超寬帶(UWB)無線通信技術(shù)做了簡要介紹;然后著重討論了UWB干擾問題研究的最新進(jìn)展,包括:干擾檢測技術(shù),干擾抑制的UWB波形設(shè)計(jì)和干擾檢測與抑制流程;最后探討了UWB技術(shù)的發(fā)展方向。7.超寬帶無線通信技術(shù)的發(fā)展現(xiàn)狀和前景展望張鳳山;周正第九屆全國青年通信學(xué)術(shù)會(huì)議論文集2004-05-01中國會(huì)議文摘：簡要介紹了超寬帶(UWB:ultra-Wideband)技術(shù)的概念、特征、發(fā)展歷史。主要介紹了UWB無線通信系統(tǒng)與其它無線電系統(tǒng)的電磁兼容研究情況,以及美歐在基于UWB無線通信技術(shù)的高速率WPAN中標(biāo)準(zhǔn)的制訂情況。8.超寬帶無線通信技術(shù)及其應(yīng)用劉剛;張淑娥;邱巍巍電力系統(tǒng)通信2005-12-10期刊文摘：通過將超寬帶(UWB)無線通信技術(shù)應(yīng)用于組建無線個(gè)人局域網(wǎng)(PAN)和無線多媒體網(wǎng)絡(luò),可實(shí)現(xiàn)數(shù)據(jù)在近距離范圍內(nèi)的高速傳輸,并有效地解決了信道衰減、成本高和功耗大等難題,同時(shí),UWB技術(shù)也可應(yīng)用于探測、定位、成像等方面。文章通過介紹UWB無線通信技術(shù)的基本概念,分析了它的2種調(diào)制方式以及性能特點(diǎn),最后詳細(xì)介紹了其在無線通信中的應(yīng)用。

9.SinglecarrierfrequencydomainequalizationtechnologyappliedtobroadbandwirelesscommunicationsSangHuiping

(No.54Res.Inst.,ChinaElectron.Technol.GroupCorp.,Shijiazhuang,China);

DengJiahao

Source:Science&TechnologyReview,v27,n7,p64-9,13April2009Abstract:Broadbandwirelesscommunicationisanattractivetechnology,whichoffersbitratesoftensofmegabitstohundredsofmegabitspersecond.Inwirelessenvironmentsonelikelyfaceswithhostileradiopropagationenvironments.Multipathdelayspreadsareextendedovertensorhundredsofbitintervals,sothemeasurestocombatthemultipatheffectsarethekeypoint.Thesinglecarrierfrequencydomainequalization(SC-FDE),whichisadoptedbycommunicationstandards,isatypeofanti-multipathmeasures.SC-FDEhassimilarperformance,efficiency,andlowsignalprocessingcomplexityadvantagesasOFDM.SimilaritiesanddifferencesofSCandOFDMsystemsarediscussedinthispaper.SC-FDEisasinglecarriersystemwithfrequencydomainequalization.SomealgorithmsinOFDMareadoptedwhiletechniquesinsinglecarriersystemarereserved.PhaselocktechniqueswhicharewidelyappliedinasinglecarriersystemandtheframesynchronizationalgorithmusedinOFDMareimportantSC-FDE.ChannelestimationandequalizationalgorithmforSC-FDEareanalyzed.TheperformanceofSC-FDEisverifiedbysimulation.Theresultshaveverifiedtheanti-multipathability.(16refs)10.IntegrationofbroadbandwirelesstechnologiesandPMRsystemsforprofessionalcommunicationsDurantini,A.

(ConsorzioUniv.Industria,Rome,Italy);

Petracca,M.;

Vatalaro,F.;

Civardi,A.;

Ananasso,F.

Source:2008FourthInternationalConferenceonNetworkingandServices,p84-9,2007Abstract:ThepapercontributestotheevolutionofPublicSafetyandDisasterRelief(PSDR)communicationsbyspecifyingasolutionforinteroperabilityandintegrationamongProfessionalMobileRadiosystems(TETRAandSimulcast),publicsystems(GSM/GPRS/UMTS),andbroadbandwirelesstechnologies,suchasWiMAX.ApolicyforPSDRservicesschedulingandfundamentalguidelinesformappingthequalityofserviceoverheterogeneousnetworksarepresented.Hence,thepaperoutlinesthekeyissuestobedebatedbyaregulatoryauthority.OperationofthedevisedPSDRmobileintegrationsolutionistestedtoensurecompleteconnectivityamongusersadoptingdifferentcommunicationstandards,aswellastoenabledistributedservicesprovisioningguaranteeingalwaysbestconnectiontobandwidthdemandingapplicationsprovidedbyanIP-basedcorenetwork.Finally,theemploymentoftheenvisagedintegrationplatformisdetailedinMobileAd-HocandWirelessSensorNetworks.(8refs)11.Wirelessbroadbandcommunications:someresearchactivitiesinSingaporeKeeChaingChua

(CenterforWirelessCommun.,Nat.Univ.ofSingapore,Singapore);

Ravi,K.V.;

Bensaou,B.;

TeckChienPek

Source:IEEECommunicationsMagazine,v37,n11,p84-90,Nov.1999Abstract:Almostadecadeago,SingaporestartedcraftingandimplementingitsIT2000masterplantotransformthecity-stateintoaninformation-technology-basedintelligentisland.Since1997,themaininfrastructureofahigh-speedATM-basedbackbonenetwork,calledSingaporeONE,hasbeeninplacealongwithahostofcommercialandgovernmentalapplicationservicesitesprovidingaplethoraofonlineservices.Becauseofitssmallsizeandextensivewiredinfrastructure,broadbandaccesstohomesandofficesiscurrentlyprovidedviaADSLandcablemodems.Thereis,however,interestintheuseofwirelessbroadbandcommunicationtechnologiestoaccessSingaporeONE,motivatedprimarilybyitslowercostandfasterdeployment.InthisarticlewedescribesomeofourR&DactivitiesmotivatedbytheaboveinteresttoprovidewirelessbroadbandaccesstoSingaporeONE.Specifically,wedescribeourstudyofLMDS,andthedesignanddevelopmentofawirelessATMLAN(9refs)12.EfficientwirelessbroadbandcommunicationsforruralAustraliaRatnayake,N.L.

(QueenslandUniv.ofTechnol.,Brisbane,QLD,Australia);

Atapattu,L.N.;

Ziri-Castro,K.;

Jayalath,D.

Source:2010ElectromagneticCompatibilitySymposium-Melbourne(EMCSA2010),p7pp.,2010Abstract:Thispaperdiscusseshowinternetservicescanbebroughtonestepclosertotheruraldispersedcommunitiesbyimprovingwirelessbroadbandcommunicationsinthoseareas.ToaccomplishthisobjectivewedescribetheuseofaninnovativeMulti-User-Single-AntennaforMIMO(MUSA-MIMO)technologyusingthespectrumcurrentlyallocatedtoanalogueTV.MUSA-MIMOtechnologycanbeconsideredasaspecialcaseofMIMOtechnology,whichisbeneficialwhenprovisioningreliableandhigh-speedcommunicationchannels.ThispaperdescribeschannelmodellingtechniquestocharacterisetheMUSA-MIMOsystemallowinganeffectivedeploymentofthistechnology.Particularly,itdescribesthedevelopmentofanovelMUSA-MIMOchannelmodelthattakesintoaccounttemporalvariationsintheruralwirelessenvironment.Thiscanbeconsideredasanovelapproachtailor-maidtoruralAustraliaforprovisioningefficientwirelessbroadbandcommunications.(28refs)13.StudyontheapplicationofadvancedbroadbandwirelessmobilecommunicationtechnologyinsmartgridZhao,Feng

(ChinaElectricPowerResearchInstitute,Beijing,100192,China);

Liu,Jianming;

Hu,Dan;

Zhang,Yuexia

Source:2010InternationalConferenceonPowerSystemTechnology:TechnologicalInnovationsMakingPowerGridSmarter,POWERCON2010,2010,2010InternationalConferenceonPowerSystemTechnology:TechnologicalInnovationsMakingPowerGridSmarter,POWERCON2010Abstract:Acommunicationnetworkarchitectureforsmartgridbasedonbroadbandwirelesscommunicationtechnology,suchas3G,LTE,LTE-Advancedandetc.,isproposedinthispaper.Astheemergencycommunicationhascriticalrequirementofwirelesscommunicationtechnologyinthesmartgrid,asolutionforemergencycommunicationsisdesignedbasedonLTEtechnology.Inthesolution,theTDDmodeisused,andSC-FDMAuplinkisconfiguredwithmoretimeslotresourcesthanOFDMAdownlink.Consideringterminallimits,suchaspowerandvolume,theantennaconfigurationis1x2foruplinkand2x2fordownlink.Atthesametime,HARQandtheadaptivemodulationandcodingtechniquesareusedtoimprovetransmissionreliabilityandefficiency.Thelinklevelsimulationisusedtoevaluatethesolution.WithQPSK,16QAMand64QAMmodulationbasedon1x1antennaand1x2MIMO,wesimulatetheuplinkbiterrorratebasedondifferentSNR.andcomparedifferentlinkperformancesunderdifferentmodulationmodesandantennaconfigurations.?2010IEEE.(13refs)14.Mobilewirelesscommunications-BroadbandtechnologiesforoverGbit/secTakagi,Tadashi

(TohokuUniversity,Sendai,980-8577,Japan);

Tsubouchi,Kazuo

Source:Proceedings-2005IEEEInternationalWorkshoponRadio-FrequencyIntegrationTechnology:IntegratedCircuitsforWidebandCommunicationandWirelessSensorNetworks,RFIT2005,v2005,p18-20,2005,Proceedings-2005IEEEInternationalWorkshoponRadio-FrequencyIntegrationTechnology:IntegratedCircuitsforWidebandCommunicationandWirelessSensorNetworks,RFIT2005Abstract:TheactivitiesoftheIT-21CenterandthesetupoftheIT-programRR2002ofthenationalprojectforthedevelopmentofmobilewirelesscommunicationtechnologiesareintroduced,andthesuccessfulresultsareshownaswell.Then,wediscusssomeissuesrelatedtorealizingmillimeterwavebroadbandmobilecommuni-cationsystemsandwemakesomeproposalstofacilitatethedevelopmentofdevicetechnologies.15.IntegratedairinterfacemultipleaccessschemesforbroadbandwirelesscommunicationsDeObaldia,G.

(UnivofYork,York,UnitedKingdom);

Grace,D.;

Tozer,T.C.

Source:IEEEVehicularTechnologyConference,v3,52ND,p1120-1127,2000Abstract:AirInterfaceMultipleAccess(MA)SchemestosupportBroadbandWirelessCommunications(BWC)arepresented.Theseencompassamixtureofcoreprotocols,anumberofnetworktechnologies,variousbearerlinktypes,anddifferenttrafficcomponentsinacommontransportchannel.Weconsidertheseschemes,whichuseaMediumAccessControl(MAC)VirtualRegion(VR)conceptdevelopedtocopewithdiverseservicesandapplications.WeproposeaDynamicBroadbandMultipleAccess(DBMA)schemetoallocateandsharethecapacity.Amodelforthischannelisthenconsideredinfurtherdetail,andsimulationsresultsarepresented.Thesefeaturethechannelcapabilitiesinsupportingdifferenttypesoftraffic(i.e.VBR,UBR,CBR)anditslevelofperformancewhenapplyingdynamicaccesspermissionprobabilities.Foragivensystembandwidth,theseminimiZequeuedelaysandpacketdroppingwhilemaximizingsystemcapacityinthenumberofuserssupportedformixedtrafficcategories.(7refs)綜述：（一）超寬帶無線通信技術(shù)的簡介UWB(ultrawideband)是超寬帶無線通信技術(shù)的縮寫,是目前使用1GHz以上帶寬的最先進(jìn)的無線通信技術(shù),其數(shù)據(jù)傳輸速度可達(dá)到幾百M(fèi)bit/s以上。超寬帶無線通信技術(shù)以其高速率、低功耗、隱蔽性好、定位精度高等突出優(yōu)點(diǎn),在無線個(gè)域網(wǎng)、智能交通系統(tǒng)、探測與成像系統(tǒng)等諸多領(lǐng)域有著廣泛的應(yīng)用前景,正在迅速成為產(chǎn)業(yè)界關(guān)注和研究的熱點(diǎn)之一。（二）UWB信號(hào)及其調(diào)制技術(shù)目前UWB系統(tǒng)常用的理想基函數(shù)主要有單波、雙波、單周期環(huán)和小波形式。對(duì)于前3種基函數(shù)而言,通常采用周期性的單周脈沖序列作為UWB信號(hào)的載體。單周脈沖使用持續(xù)時(shí)間為0.5~20ns的高斯形脈沖或方波脈沖。高斯形脈沖類似于單周正弦波,頻譜結(jié)構(gòu)中直流及接近直流的頻譜成分較弱,有利于極窄脈沖信號(hào)的傳輸,接收端易于相關(guān)檢測與識(shí)別,使用較多。在早期的無載波脈沖UWB通信系統(tǒng)中,基帶窄脈沖形式為其所采用的信號(hào)形式。發(fā)射機(jī)產(chǎn)生基帶窄脈沖序列進(jìn)行通信,脈沖信號(hào)的寬度極窄,通常在納秒級(jí)或亞納秒級(jí),并通過脈沖位置調(diào)制(PPM)、二進(jìn)制移相鍵控(BPSK)或脈沖幅度調(diào)制(PAM)等調(diào)制方式攜帶信息。帶有載波調(diào)制的UWB技術(shù)是在基帶窄脈沖的技術(shù)基礎(chǔ)上提出的。它把單脈沖信號(hào)占據(jù)的頻譜分為若干個(gè)子頻帶,其脈沖是等寬度的脈沖信號(hào),包絡(luò)是高斯脈沖,不同的脈沖信號(hào)在一個(gè)脈沖寬度內(nèi)有不同的周期數(shù),對(duì)應(yīng)不同的中心頻率。同無載波脈沖調(diào)制方式相比,可更加靈活、有效地利用頻譜資源。同時(shí),調(diào)制載波系統(tǒng)的信號(hào)處理方法與一般通信系統(tǒng)采用的方法類似,技術(shù)成熟度高,在目前的工藝條件下,比基帶窄脈沖方式更容易實(shí)現(xiàn)高速系統(tǒng)。因此,采用載波調(diào)制的UWB通信方式是目前高速無線多媒體應(yīng)用領(lǐng)域的主流。（三）UWB技術(shù)的特點(diǎn)UWB是一種“特立獨(dú)行”的無線通信技術(shù),它將會(huì)為無線局域網(wǎng)LAN和個(gè)人局域網(wǎng)PAN的接口卡和接入技術(shù)帶來低功耗、高帶寬并且相對(duì)簡單的無線通信技術(shù)。UWB具有以下特點(diǎn):第一是其高帶寬、高傳輸速率。按照UWB的技術(shù)設(shè)計(jì),UWB使用的帶寬在1GHz以上,高達(dá)幾個(gè)GHz,數(shù)據(jù)速率可以達(dá)到幾十Mbit/s到幾百M(fèi)bit/s,樣的理論速度高于藍(lán)牙100倍,特別適合局域網(wǎng)或者個(gè)域網(wǎng)內(nèi)設(shè)備之間的快速共享數(shù)據(jù)庫以及傳送數(shù)據(jù)。第二是其強(qiáng)大的抗干擾性能,UWB采用跳時(shí)擴(kuò)頻信號(hào),系統(tǒng)具有較大的處理增益,在發(fā)射時(shí)將微弱的無線電脈沖信號(hào)分散在寬闊的頻帶中,輸出功率甚至低于普通設(shè)備產(chǎn)生的噪聲。接收時(shí)將信號(hào)能量還原出來,在解擴(kuò)生擴(kuò)頻增益。因此,與IEEE802.11a、IEEE802.11b和藍(lán)牙相比,在同等碼速條件下,UWB具有更強(qiáng)的抗干擾性。另外,由于UWB的脈沖非常短(0.1～1.5ns),頻譜非常寬(數(shù)GHz,可超過10GHz),能避免多路徑傳輸?shù)男盘?hào)干擾。第三是低功耗,UWB系統(tǒng)發(fā)射功率非常小,通信設(shè)備可以用小于1mW的發(fā)射功率實(shí)現(xiàn)通信,另外,CDMA-UWB不使用載波,只是發(fā)出瞬間脈沖電波,也就是直接按“0”和“1”發(fā)送出去,并且在需要時(shí)才發(fā)送脈沖電波,大大延長了系統(tǒng)電源的工作時(shí)間。第四是其多徑分辨率極高。由于UWB采用持續(xù)時(shí)間極短的窄脈沖,其時(shí)間、空間分辨力都很強(qiáng),因此系統(tǒng)的多徑分辨率極高,接收機(jī)通過分集可以獲得很強(qiáng)的抗衰落能力,同時(shí)在進(jìn)行測距、定位、跟蹤時(shí)也能達(dá)到更高的精度。值得一提的是,窄脈沖具有很強(qiáng)的穿透各種障礙物的能力,例如墻壁和地板,因此UWB具有比紅外通信更為廣泛的應(yīng)用。第五就是它的保密性強(qiáng)。UWB通信系統(tǒng)由于一方面采用跳時(shí)擴(kuò)頻,接收機(jī)只有知道發(fā)送端的脈沖序列,才能將發(fā)射數(shù)據(jù)解出;另一方面是系統(tǒng)的發(fā)射功率非常低,有用信息完全淹沒在噪聲中,被截獲概率很小,被檢測的概率也很低,用傳統(tǒng)的接收機(jī)無法接收。（四）UWB技術(shù)的應(yīng)用UWB現(xiàn)階段主要應(yīng)用于雷達(dá)探測和精確定位,未來UWB將廣泛應(yīng)用于數(shù)字家庭網(wǎng)絡(luò)系統(tǒng)。由于UWB設(shè)備具有很強(qiáng)的穿透能力,UWB探測成像系統(tǒng)可以使警察、消防員和救人員在緊急情況下迅速找到藏在墻后或者是被埋在廢墟中的人;同時(shí),還可以協(xié)助公共安全部門在攻堅(jiān)之前,偵測歹徒的動(dòng)向,在反恐戰(zhàn)爭中可發(fā)揮不可估量的作用;此外,也可以用于提高建筑和家庭維修行業(yè)的安全性。因此,基于UWB技術(shù)的新型探測成像設(shè)備具有闊的市場前景。UWB定位系統(tǒng)具備實(shí)時(shí)的室內(nèi)外精確跟蹤能力,定位精度可以到幾個(gè)厘米,在室內(nèi)精確定位方面將會(huì)對(duì)GPS起到一個(gè)很好的補(bǔ)充作用。UWB技術(shù)在家庭網(wǎng)絡(luò)應(yīng)用中的目標(biāo)就是消滅家電之間的連接線,利用其高速無線數(shù)據(jù)傳輸特點(diǎn),替代藍(lán)牙技術(shù)實(shí)現(xiàn)家庭中所有電器之間的無線連接,組建小型數(shù)字家庭網(wǎng)絡(luò),滿足現(xiàn)代家庭對(duì)未來高效數(shù)字化生活的需求。目前UWB技術(shù)正被整合進(jìn)家庭影院和便攜式產(chǎn)品,完成高速無線視頻和音頻信號(hào)的收發(fā)。Motorola、Intel、TI、ST(意法半導(dǎo)體)以及日韓一些廠商已推出UWB芯片和相關(guān)產(chǎn)品。參考文獻(xiàn)：[1]淺談超寬帶無線通信技術(shù)的發(fā)展趙麗麗;王莉;蘇麗娜;鞠曉潔數(shù)字技術(shù)與應(yīng)用2011-03-15期刊[2]超寬帶無線通信技術(shù)的發(fā)展楚政;謝飛電信科學(xué)2007-11-15期刊[3]超寬帶無線通信技術(shù)發(fā)展淺析邢茂柱科技與企業(yè)2013-03-06期刊[4]超寬帶無線通信技術(shù)及其應(yīng)用劉剛;張淑娥;邱巍巍電力系統(tǒng)通信2005-12-10期刊二、個(gè)人和機(jī)構(gòu)發(fā)表論文被EI數(shù)據(jù)庫收錄情況檢索1.被檢索機(jī)構(gòu)：TsinghuaUniversity數(shù)據(jù)庫：EI檢索式：TsinghuaUniversity檢索步驟:進(jìn)入檢索平臺(tái)西電圖書館網(wǎng)站→選擇外文數(shù)據(jù)庫EI→輸入檢索式TsinghuaUniversity→查看檢索統(tǒng)計(jì)的總數(shù)量→查看左側(cè)邊欄按Year對(duì)數(shù)量的排序→統(tǒng)計(jì)各年度數(shù)量命中條數(shù)：55885按各種條件統(tǒng)計(jì)的數(shù)量列表：YearQuantity2013282720129906201112313201010392200910786200896612.被檢索人：JiaoLicheng;LichengJiao;JIAOLC數(shù)據(jù)庫：EI檢索式：JiaoLichengorLichengJiaoorJIAOLC檢索步驟:進(jìn)入檢索平臺(tái)西電圖書館網(wǎng)站→選擇外文數(shù)據(jù)庫EI→選擇QUICKSEARCH→輸入檢索式JIAOLCorJiaoLichengorLichengJiao并選擇檢索字段為Author→查看左側(cè)邊欄按Year對(duì)數(shù)量進(jìn)行排序并統(tǒng)計(jì)數(shù)量→查看左側(cè)邊欄按Documenttype對(duì)數(shù)量進(jìn)行排序并統(tǒng)計(jì)數(shù)量→查看左側(cè)邊欄按ClassificationCode對(duì)數(shù)量進(jìn)行排序并統(tǒng)計(jì)數(shù)量→查看左側(cè)邊欄按Publisher對(duì)數(shù)量進(jìn)行排序并統(tǒng)計(jì)發(fā)表文章最多的前5種刊物命中條數(shù)：1111按各種條件統(tǒng)計(jì)的數(shù)量列表：按年份進(jìn)行統(tǒng)計(jì)：YearQuantity20131920126020116120101112009165200883按文獻(xiàn)類型進(jìn)行統(tǒng)計(jì)：DocumenttypeQuantityConferencearticle262Journalartical230ArticleinPress7按學(xué)科分類進(jìn)行統(tǒng)計(jì)：ClassificationCodeQuantityComputerSoftware,DataHandingandApplications208DataProcessingandImageProcessing197ComputerApplications191Mathematics190Optimisationtechniques170ArtificialIntelligence151Computervisionandimageprocessingtechniques138Telecommunication;Radar,RadioandTelevison137Light,OpticsandOpticalDevices133Optical,imageandvideosignalprocessing129發(fā)表文章最多的前五種刊物：RankSourceTitle1Ieee2SpringerVerlag3Springer-Verlag4InstituteOfElectricalAndElectronicsEngineersInc.5Spie三、利用webofKnowledge(WOK)平臺(tái)完成下列題目1.數(shù)據(jù)庫名：SCI檢索式：xidianuniversity檢索步驟：：進(jìn)入WOK平臺(tái)→進(jìn)入數(shù)據(jù)庫WebofScience→選擇檢索→輸入檢索式xidianuniversity并選擇檢索范圍為機(jī)構(gòu)擴(kuò)展→選擇時(shí)間跨度為2008~2012→查看左側(cè)邊欄按作者對(duì)數(shù)量的排序并統(tǒng)計(jì)數(shù)量→查看按會(huì)議名稱對(duì)數(shù)量的排序并統(tǒng)計(jì)數(shù)量→將排序方式改為按被引頻次（降序）并統(tǒng)計(jì)數(shù)量和論文信息命中篇數(shù)：5460統(tǒng)計(jì)數(shù)據(jù)：各年份的論文數(shù)量：年份數(shù)量200892320091003201010292011119520121310我校五年來發(fā)文最多的前5名作者：排名作者名數(shù)量1JIAOLC2192HAOY1853YANGYT1504WUZS1455TIANJ141論文數(shù)排名前5的會(huì)議名稱:排名會(huì)議名稱數(shù)量110THINTERNATIONALSYMPOSIUMONANTENNASPROPAGATIONANDEMTHEORYISAPE7725THINTERNATIONALCONFERENCEONINFORMATIONASSURANCEANDSECURITY3838THINTERNATIONALSYMPOSIUMONANTENNASPROPAGATIONANDEMTHEORY334IEEEINTERNATIONALCONFERENCEOFELECTRONDEVICESANDSOLIDSTATECIRCUITS3056THINTERNATIONALCONFERENCEONWIRELESSCOMMUNICATIONSNETWORKINGANDMOBILECOMPUTINGWICOM27被引次數(shù)排名前5的作者及論文信息:（1）.標(biāo)題:AsurveyandcomparisonofPetrinet-baseddeadlockpreventionpoliciesforflexiblemanufacturingsystems作者:Li,ZhiWu;Zhou,MengChu;Wu,NaiQi來源出版物:IEEETRANSACTIONSONSYSTEMSMANANDCYBERNETICSPARTC-APPLICATIONSANDREVIEWS

卷:38

期:2

頁:173-188

DOI:10.1109/TSMCC.2007.913920

出版年:MAR2008被引頻次:\o"查看引用本文的所有文獻(xiàn)"80文摘：Overthelasttwodecades,agreatdealofresearchhasbeenfocusedonsolvingdeadlockproblemsinresourceallocationsystemssuchascomputercommunicationsystems,workflowsystems,andflexiblemanufacturingsystems,resultinginawidevarietyofapproaches.Asawell-definedprobleminresourceallocationsystems,deadlockpreventionbasedonaPetrinetformalismhasreceivedanenormousamountofattentionintheliterature.ThispaperintendstoreviewandcompareavarietyofPetrinet-baseddeadlockpreventionpoliciesreportedintheliterature.Theircomparisonisdoneintermsofstructuralcomplexity,behaviorpermissiveness,andcomputationalcomplexity.Thispapershouldfacilitateengineersinchoosingasuitedmethodfortheirindustrialapplicationcases.（2）.標(biāo)題:Decentralizedoutput-feedbackneuralcontrolforsystemswithunknowninterconnections作者:Chen,Weisheng;Li,Junmin來源出版物:IEEETRANSACTIONSONSYSTEMSMANANDCYBERNETICSPARTB-CYBERNETICS

卷:38

期:1

頁:258-266

DOI:10.1109/TSMCB.2007.904544

出版年:FEB2008被引頻次:\o"查看引用本文的所有文獻(xiàn)"73文摘：Anadaptivebacksteppingneural-networkcontrolapproachisextendedtoaclassoflarge-scalenonlinearoutput-feedbacksystemswithcompletelyunknownandmismatchedinterconnections.Thenovelcontributionistoremovethecommonassumptionsoninterconnectionssuchasmatchingcondition,boundedbyupperboundingfunctions:Differentiationoftheinterconnectedsignalsinbacksteppingdesignisavoidedbyreplacingtheinterconnectedsignalsinneuralinputswiththereferencesignals.Furthermore,twokindsofunknownmodelingerrorsarehandledbytheadaptivetechnique.Alltheclosed-loopsignalsareguaranteedtobesemigloballyuniformlyultimatelybounded,andthetrackingerrorsareprovedtoconvergetoasmallresidualsetaroundtheorigin.Thesimulationresultsillustratetheeffectivenessofthecontrolapproachproposedinthiscorrespondence.（3）.標(biāo)題:Designofnoveldual-bandbandpassfilterwithmicrostripmeander-loopresonatorandCSRRDGS作者:Wu,G.-L.;Mu,W.;Dai,X.-W.;等.來源出版物:PROGRESSINELECTROMAGNETICSRESEARCH-PIER

卷:78

頁:17-24

DOI:10.2528/PIER07090301

出版年:2008被引頻次:\o"查看引用本文的所有文獻(xiàn)"69文摘：Anoveldual-bandbandpassfilterwithmeander-loopresonatorandcomplementsplit-ringresonator(CSRR)defectedgroundstructure(DGS)isproposedinthisletter.Microstripmeander-loopresonatorandCSRRDGSareoperatedforrespectivepassbands.Severalfiniteattenuationpolesinstopbandsarerealizedtoimprovetheselectivityoftheproposedbandpassfilterandisolationbetweenthetwopassbands.Compactsize,dualbandandhighselectivitycharacteristicsarerealizedbythistypeoffilterstructure.Thefilterisevaluatedbyexperimentandsimulationwithverygoodagreement.（4）.標(biāo)題:ControlofelementaryanddependentsiphonsinPetrinetsandtheirapplication作者:Li,Zhiwu;Zhou,MengChu來源出版物:IEEETRANSACTIONSONSYSTEMSMANANDCYBERNETICSPARTA-SYSTEMSANDHUMANS

卷:38

期:1

頁:133-148

DOI:10.1109/TSMCA.2007.909548

出版年:JAN2008被引頻次:\o"查看引用本文的所有文獻(xiàn)"67文摘：TheimportanceofsiphonsiswellrecognizedintheanalysisandcontrolofdeadlocksinaPetrinet.Tominimizethenumberofsiphonsthathavetobeexplicitlycontrolled,siphonsinanetaredividedinanetintoelementaryanddependentones.Theconceptsoftoken-rich,token-poor,andequivalentsiphonsarenewlypresented.Moregeneralconditionsunderwhichadependentsiphoncanbealwaysmarkedareestablished.TheexistenceofdependentsiphonsinaPetrinetisinvestigated.Analgorithmisdevelopedtofindthesetofelementarysiphonsinanetsystemfordeadlockcontrolpurposes.Theapplicationoftheproposedelementarysiphonconcepttotheexistingdeadlockcontrolpoliciesisdiscussed.Afewdifferent-sizedmanufacturingexamplesareusedtodemonstratetheadvantagesofelementarysiphon-basedpolicies.Thesignificantvalueoftheproposedtheoryviaaparticulardeadlockcontrolpolicyisshown.Finally,someinterestingandopenproblemsarediscussed.（5）.標(biāo)題:AmaximallypermissivedeadlockpreventionpolicyforFMSbasedonPetrinetsiphoncontrol