简介:SiliconPhotodiodewithVerySmalSensitiveArea①YINChangsong,LIXiaojun(WuhanUniversity,Wuhan430072,CHN)Abstract:ThesiliconPNjuncti...
简介:Amodularflat-screenliquidcrystaltelevisiondisplayisdescribed.Thepictureelementsofthemodulesmaybeemissive,reflectiveortransmissive.Theflat-screenliquidcrystaltelevisionalsocomprisedofanelectricalcontrolcircuitcapableofcategorizingincomingtelevisionpicturesignalscorrespondingtothemodulesinthearrayanddirectingtheelectricalsignalstothedrivecircuitsofeachmoduleaccordingtotheportionofthetelevisionpicturetobereproducedbythepictureelementsofthatmodule.Thepictureelementsarepreferablyformedinalightmodulatingfilmcomposedofaliquidcrystaldispersioninapolymericbinder.Acolordisplaywasalsoproducedbyplacingapatternedred-green-bluefilteradjacenttheactivematrixsothateachpictureelementcouldalsobecoordinatedwiththecolorcomponentsofacolorvideosignal.
简介:Theadaptivereconstructionforthelostinformationoftherectangularimageareaisveryimportantfortherobusttransmissionandrestorationoftheimage.Inthispaper,anewreconstructionmethodbasedontheDiscreteCosineTransform(DCT)domainhasbeenputforward.AccordingtothelowpasscharacterofthehumanvisualsystemandtheenergydistributionoftheDCTcoefficientsontherectangularboundary,theDCTcoefficientsoftherectangularimageareaareadaptivelyselectedandrecovered.AftertheInverseDiscreteCosineTransform(IDCT),thelostinformationoftherectangularimageareacanbereconstructed.Theexperimentshavedemonstratedthatthesubjectiveandobjectivequalitiesofthereconstructedimagesareenhancedgreatlythanbefore.
简介:在无线传感器网络减少精力消费的一个方法是在网络减少活跃节点的数字。当传感器冗余地被部署时,传感器的一个子集应该被选择活跃地监视这块地(叫作一个“封面”),而传感器的其余部分应该被放睡觉保存他们的电池。在这份报纸,学习自动机基于算法因为在无线传感器网络(EEMLA)的精力有效的监视被建议。在EEMLA算法的每个节点与决定让节点在网络的操作期间在任何时间活跃的学习自动机被装备。用从附近的节点收到的反馈,每个节点逐渐地在网络的操作期间学习它的合适的状态。试验性的结果证明了与象Tian和LUC罐头那样的另外的存在方法相比的建议监视算法更好延长网络一生。
简介:Inthispaper,anewmodelbasedonanimprovedBrentKung(BK)parallelprefixnetwork(PPN)algorithmisproposedandrealizedinthefieldprogrammablegatearray(FPGA).Thismodelisemployedintheimplementationof20Gb/sdifferentialquadraturephase-shiftkeying(DQPSK)precoderin40Gb/spolarizationdivisionmultiplex(PolDM)DQPSKsystem.Inthecomputationprocess,thecomputationcomplexity(area)optimizationwithfan-outlimitedisachieved.Intheimplementation,770FPGAsliceregistersareutilized,whichsaveabout60%logicresourcescomparedwiththepreviousKoggeStone(KS)algorithm.
简介:ThepaperidentifiesandanalyzesthegeographicalandtemporalvariabilityofsolarenergyinKuwait.Thefundamentalsolartrigonometricmodelhasbeenmodifiedtoestimatedailyandhourlysolarradiationonhorizontalsurfacesonthebasisofthemorereadilyavailablemeteorologicaldata.TheresultsdemonstratethatKuwaithasanabundanceofsolarenergycapability.Anoverviewoftheproductionandconsumptionofelectricalenergy,installedcapacity,andpeakloadsinKuwaitisalsopresented.Finally,itisshownhowthepowerproducedfromthephotovoltaic(PV)cellsdependsonthesolarradiation.TheproposedPVmoduleismadeupofacombinationofseriesandparallelcellstoincreasepower,whiletheI-Vcharacteristicandoutputpowerofthemoduleeachmonthmaybeobtainedfromthemodel.
简介:ThispaperproposedarobustmethodbasedonthedefinitionofMahalanobisdistancetotrackgroundmovingtarget.Thefeatureandthegeometryofairbornegroundmovingtargettrackingsystemsarestudiedatfirst.Basedonthisfeature,theassignmentrelationoftime-nearbytargetiscalculatedviaMahalanobisdistance,andthenthecorrespondingtransformationformulaisdeduced.Thesimulationresultsshowthecorrectnessandeffectivenessoftheproposedmethod.
简介:Thehigh-densitypopulationleadstocrowdedcities.Thefuturecityisenvisagedtoencompassalarge-scalenetworkwithdiverseapplicationsandamassivenumberofinterconnectedheterogeneouswireless-enableddevices.Hence,greentechnologyelementsarecrucialtodesignsustainableandfuture-proofnetworkarchitectures.Theyarethesolutionsforspectrumscarcity,highlatency,interference,energyefficiency,andscalabilitythatoccurindenseandheterogeneouswirelessnetworksespeciallyinthehomeareanetwork(HAN).Radio-over-fiber(ROF)isatechnologycandidatetoprovideaglobalviewofHAN’sactivitiesthatcanbeleveragedtoallocateorthogonalchannelcommunicationsforenablingwireless-enabledHANdevicestransmission,withconsideringtheclustered-frequency-reuseapproach.Ourproposednetworkarchitecturedesignismainlyfocusedonenhancingthenetworkthroughputandreducingtheaveragenetworkcommunicationslatencybyproposingadataaggregationunit(DAU).TheperformanceshowsthatwiththeDAU,theaveragenetworkcommunicationslatencyreducessignificantlywhilethenetworkthroughputisenhanced,comparedwiththeexistingROFarchitecturewithouttheDAU.
简介:区域有效的设计方法论为译码率的实现的类似物被建议--吗?积累repeat-4锯齿状积累(AR4JA)低密度同等值检查(LDPC)代码。建议途径被设计使用译码建筑学和调整路由网络优化,以如此的一个方法,全面配线开销被最小化,硅区域利用是显著地改善了。过去常验证途径的原型薄片充分集成于一四金属double-poly0.35m互补金属氧化物半导体(互补金属氧化物半导体)技术,并且包括最大化解码器产量的一个输入产量接口。译码的核心区域是有80%的布局以后的区域利用的2.02公里2。解码器成功地以10Mbit/s的最大的数据率被测试,与在3.3V的6.78mW的核心电源消费,它每0.677nJ的译码的小点对应于一个精力。有低处理电源的建议模拟LDPC解码器并且高可靠性对抑制空间、抑制力量的太空船系统合适。
简介:有连接纤维的分布式的天线(CWLAN食物及药品管理局)的认知无线本地区域网络是在纤维,认知收音机和提供高速度/高度能力的分布式的天线技术上联合无线电的有希望、有效的体系结构以合理成本的无线存取。在这份报纸,一条学习Q途径被使用在CWLAN食物及药品管理局实现动态隧道赋值(DCA)。认知存取点(帽子)选择并且分配最好的隧道在之中工业、科学、医药(主义)为数据包传播的乐队,给目的是最小化外部干扰并且获得更好网络宽的性能。当能在正常操作期间探索一个CWLAN食物及药品管理局系统的状态时,学习Q方法避免解决复杂优化问题。模拟结果表明建议策略在减少停止概率和改善网络产量是有效的。