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1.
1 IntroductionTheAccessNetworkisaseriesoftransferenti tiesbetweenservicenodeinterfacesandtherespon dentusernetworkinterfaces,providingtransfer ring ,multiplexer,cross connectionandotherloadtelecommunicationservices[1 ] .AstheCommunica tionTechnologiesdevelop…  相似文献   

2.
DesignofIREDMSystemwithaDSPPhaseDetector①LIUJianguo,WEIQingnong(AnhuiInstituteofOpticsandFineMechanics,ChineseAcademyofScienc...  相似文献   

3.
NetWareAccesServices在NetWare41网络中实现远程通信的问题分析●席亚伟NetWareAccessServices(简称NAS)是Novel公司为解决远程用户、移动用户通过拨号线、专线、X25(PSTN、CHINAPAC)...  相似文献   

4.
AAauditoriumacoustics厅堂音质AAAauthentication ,authorization ,account (server)(用户 )认证、授权、计帐 (服务器 )AACATMaccessconcentrator异步传送模式接入集中器AACSadvancedautomaticcompilationsystem高级自动编译系统AADaudioanalogdisc模拟录音光盘AANCadaptiveactivenoicecancellation自适应有源噪声对消 ,自适应有源消噪AASPa…  相似文献   

5.
1 IntroductionMultiple AccessInterference (MAI)owingtomanysimultaneoususersconstitutesthemainlimita tionofDS CDMAsystems .MultiuserdetectiontechniquescanefficientlysuppressMAIandsub stantiallyincreasethecapacityofCDMAsystems.Variousmultiuserdetectionschem…  相似文献   

6.
NeuralNetworkSignalProcesingApproachforDamageAssessmentinFiberopticSmartMaterialSystemsandStructures①②TUYaqing(Depart.ofAutom...  相似文献   

7.
《电信科学》2001,17(1)
全创通讯的EasyAccessTMDSL接入系统由安装在局端或光纤远端模块(ONU)的AccessExpressTM1000DSLAM和安装于用户端的AccessLinkerTM系列DSLCPE组成,在一条电话双绞线上,除了能为用户提供普通电话业务外,还能为用户提供高容量的交互式多媒体应用,如高速Internet访问、远程局域网访问、视频点播、视频流应用等等。EasyAccessDSL接入系统集成了采用DMT调制方式的ADSL传输系统。DMTADSL传输系统由集成在AccessExpressTM10…  相似文献   

8.
1 IntroductionRecently ,DirectSequencespreadCodeDivisionMultipleAccess (DS CDMA)hasbecomealeadingmultipleaccesstechnologyforcellularwirelesssys tems,inwhichtherehavebeensignificantchieve ments.Intheliterature ,therehavebeenresearchesonpowercontrolalgorithm…  相似文献   

9.
StructuralDamageAssessmentbyanEmbeddedFiberopticSensorArrayandItsANNSignalProcessor¥ZHAOTingchao;HUANGShanglian;CHENWeimin(Ch...  相似文献   

10.
周德俊 《红外技术》2001,23(6):20-25
1 INTRODUCTIONANDMOTIVATIONAsoneofthetwomajorresearchdirectionsininfraredimagingguidance ,thesub imagingguidanceisimportantintheterminalguidanceforitslowercost,betterportability ,shootingfacilityandgoodtrackingperformance .Inthispaper,ageneticalgorithmapp…  相似文献   

11.
NanjingElectronicDevicesInstituteimportedModularGenⅡMBEsystemrevealedinthefrontcoverfromEPIMBEProductsGroupin1995.Ithascapabilityoffabricating75mmand50mmⅢ-Ⅴcompoundmaterials.GaAs,AlGaAs,InGaAs,InAlAslayerswithgoodelectricalperformancesahvebeengrown…  相似文献   

12.
1 IntroductionInthepastthirtyyears,randomaccesstech niqueshavewidelybeenappliedinsatellitesystems,groundradionetworks,andcomputerandcommuni cationsystems.TheoriginalrandomaccessschemewasALOHAsystemwhichwasintroducedbyAbramsonin 1 970 .Thissystemschemewassim…  相似文献   

13.
1 IntroductionIn 1 980s,twoadvancesintechnologybegantochangeourworld .Thefirstwasthedevelopmentofpowerfulmicroprocessors.Theseconddevelopmentwastheinventionofhigh speedcomputernetworks.Andnowthenew generationoftechnologycouldraisethebarfordistributedcomputi…  相似文献   

14.
1IntroductionAsuccesivescalingdownoffeatureprocessingdimensionhasgivenrisetoaserialofvariationsinmanufacturingtechnologies[1]...  相似文献   

15.
AFrequency-DiversitySpread-SpectrumMultipleAccessSystemwithRandomSignatureSequencesCaoYewen;XiangHaige(PekingUniversity,Beiji...  相似文献   

16.
Asuccesivescalingdownoffeatureprocessingdimensionhasgivenrisetoaserialofvariationsinmanufacturingtechnologies[1]...  相似文献   

17.
1 IntroductionThethirdgenerationofmobilecommunicationsystemswillbeabletoprovideawholevarietyofvoice ,dataandvideoservicesfortheuser.Muchre searchhasbeendoneontheuseofwideband CDMAforsuchsystems.ThemainadvantagesofCDMAarewellknown ,however,itscapacityislim…  相似文献   

18.
使用超薄硅界面控制层钝化暴露在空气中的InGaAs表面的技术PassivationTechnologyUsinganULtrathinSiInterfaceControlLayerforAir-ExposedInGaAsSurfacesHidekiH...  相似文献   

19.
1 Introduction  Assetsservicesaretheservicesthathandlefund .Financialorganizationsrealizebusinessopera tionbyturningthefundsabsorbedintoeconomicre sultsthroughassetsservices.Becauseofitsnetworkandcredit,thesavingsdepositabsorbedby postmustbehandledeffect…  相似文献   

20.
1IntroductionAcousto-optictechniqueshavebensuccesfulyappliedtovariousareasofsignalprocesingsuchasspectrumanalysis[1]andambigu...  相似文献   

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