简介：从图象序列的背景抽取的急和稳定性是不兼容的，(GMM)如果景色的背景区域被改变，也就是说，常规Gaussian混合物什么时候当模特儿，被用来重建背景，提取背景变得坏直到转变完了。一个新奇适应方法被介绍在一个Hilbert空格调整GMM的学习的率。背景抽取被当作在Hilbert空格来临到某个点的进程因此即时学习率能被计算在二幅邻近的提取背景图象之间的距离获得，并且背景的稳定性的一个判断方法也被得到。与常规GMM相比，方法同时有高急和好稳定性，并且它能在网上调整学习的率。实验证明它比常规GMM好，特别在背景抽取的转变过程。

简介：Ananalysissolutionofrateequationisderivedforverticalcavitysurface-emittinglasers.BasedontheenhancedspontaneousemissioncausedbyVCSELsandinfluenceofnonradiativerecombination,therelationbetweenoutputpropertiesandstructuralparametersofmulti-quantumwells(MQWs)isobtanined.Itwasfoundthatthecharacteristiccurveofa"thresholdless"laserisstronglynonradiativedepopulation-dependent.Whenthenonradiativedepopulationisnozero,thelight-currentcharacteristicisnotlinearlyevenforanidealclosedmicrocavity.Thelightoutputisincreasedbytheenhancedwellnumberandbythereducedwidth.Inparticular,alowerthresholdcurrentdensityforMQWsstructureintheshortcavityisrealizedbyus,meanwhilethesharpnessofthevariationdependsonspontaneousemissionfactor.

简介：ThispaperfirstcalculatesnumericallytheSymmetricInformationRate(SIR)ofCotinuousPhaseModulation(CPM)schemesoverAdditiveWhiteGaussianNoise(AWGN)channel,modelingCPMandchannelasaMemory-lessModulator(MM)plusaMarkovFiniteStateChannel(FSMC),thenproposesanoptimaldetector,whichisofBCJRbasedDecisionFeedbackDetector(DFD)butnon-iterative.ItcanachievetheSIRasthesequencelengthapproachesinfinitywhilethecomplexityisextremelylow.Finally,boththeoreticproofandnumericalsimulationareperformedtoshowtheop-timality.SimulationresultsshowthatitnearlyachievesthetheoreticboundandoutperformstheViterbiDetector(VD)with2dBinlowEb/N0.

简介：框架率相应于时间的分辨率，图画的象素的数字相应于空间分辨率。他们为研究人员两个都是很重要的。理想的图象分析和处理系统应该有高空间与时间的特征，它在实际使用是昂贵的。用多数字的照相机(DC)提高动态框架率的一个新方法被建议，结果证明它能有效地增加框架率并且减少在实际使用的费用。

简介：Today,alongwiththeprevalentuseofportableequipment,wireless,andotherbatterypoweredsystems,thedemandforamplifierswithahighgain-bandwidthproduct(GBW),slewrate(SR),andatthesametimeverylowstaticpowerdissipationisgrowing.Inthiswork,anoperationaltransconductanceamplifier(OTA)withanenhancedSRisproposed.ByinsertingasensingresistorintheinputportofthecurrentmirrorintheOTA,thevoltagedropacrosstheresistorisconvertedintoanoutputcurrentcontainingaterminproportiontothesquareofthevoltage,andthentheSRoftheproposedOTAissignificantlyenhancedandthecurrentdissipationcanbereduced.TheproposedOTAisdesignedandsimulatedwitha0.5μmcomplementarymetaloxidesemiconductor(CMOS)process.ThesimulationresultsshowthattheSRis4.54V/μs,increasedby8.25timesthanthatoftheconventionaldesign,whilethecurrentdissipationisonly87.3%.

简介：器官的轻射出的设备的发光效率取决于在阳极在阴极和洞注射的电子的再结合概率。在organics壁炉层设备计算当前的密度和再结合率的分发的一个理论模型被介绍在器官的层在每个电极，费用运输和再结合考虑费用注射过程。计算结果显示有效单个层的设备由在二个电极和搬运人活动性调整障碍高度是可能的。降低障碍高度能改进电镀物品光(EL)效率显着地用一个欧姆触点仍然在tnany情况，和有效设备中是可能的注射低活动性搬运人，并且接触限制接触注射高活动性搬运人。总的来说，高EL效率需要考虑足够的再结合，足够注射的搬运人和井运输。

简介：积累的低密度同等值检查(LDPCA)codec被建议为在编码的分布式的录像(DVC)发现工程，它提供灵活编码率。尽管使率适应录像的关联能使用反馈隧道，但是在真实应用程序，用反馈，隧道不能总是是可能的。解决这个问题，一些研究人员求婚了在编码器估计代码率，但是性能不很好。基于他们的研究，这篇论文在率估计上为重复考虑集中率的影响，它能用它的检查矩阵是计算的。作为一个预研项目，这篇论文注意常规LDPCAcodec。同时，它在估计的转线路概率考虑偏差的影响，它给一些限制评估估计。在实验，建议算法能由多达1dB1.2dB改进率失真表演。

简介：ThisletterproposesaratecontrolalgorithmforH.264videoencoder,whichisbasedonblockactivityandbufferstate.ExperimentalresultsindicatethatithasanexcellentperformancebyprovidingmuchaccuratebitrateandbettercodingefficiencycomparedwithH.264.ThecomputationalcomplexityofthealgorithmisreducedbyadoptinganovelblockactivitydescriptionmethodusingtheSumofAbsoluteDifference(SAD)of16×16mode,anditsrobustnessisenhancedbyintroducingafeedbackcircuitatframelayer.

简介：Asoneofthenextgenerationimagingspectrometers,theinterferentialspectrometer(IS)possessestheadvantagesofhighthroughput,multi-channelandgreatresolution.ThedataofISareproducedinthespatialdomain,butopticalapplicationsareintheFourierdomain.TraditionalcompressionmethodscanonlyprotectthevisualqualityofinterferometerdatainthespatialdomainbutignorethedistortionintheFourierdomain.TherelationbetweenthedistortionintheFourierdomainandthecompressioninthespatialdomainisanalyzed.Bymathematicalproofandvalidationwithexperiments,therelationbetweenspatialandFourierdomainsisdiscovered,andthesignificanceintheFourierdomainismoreimportantasopticalpathdifference(OPD)increasinginthespatialdomain.Basedonthisrelation,anovelcodingschemeisproposed,whichcancompressdatainthespatialdomainwhilereducingthedistortionintheFourierdomain.Inthisscheme,thebitstreamofthesetpartitioninginhierarchicaltrees(SPIHT)istruncatedbyadaptivelyliftingrate-distortionslopesaccordingtotheprioritiesofOPDbasedonrate-distortionoptimizationtheory.ExperimentalresultsshowthattheproposedmethodcanprovidebetterprotectionofspectrumcurvesintheFourierdomainwhilemaintainingacomparablevisualqualityinthespatialdomain.

简介：这篇文章在直角的频率部门multiplexing(OFDM)与min率要求限制处理multicast资源分配问题系统。由于为非线性、组合的优化的禁止地高的复杂性，原来的问题被放松并且形成一个标准优化问题的reformulated。根据Karush-Kuhn-Tucker(KKT)由理论推导调节，二项提议为optimality表现为必要标准。而且，包括副载波赋值和力量分配，一个二拍子的圆舞资源分配计划在实际实现的提议的一个基础上被建议。多点传送，min率基于组顺序，副载波以一种贪婪方式被分配最大化能力。当副载波赋值是坚定的时，建议力量分配能完成最佳的性能因为min率与可接受的复杂性抑制了能力最大化。模拟结果显示建议计划接近到彻底的搜索与可以忽略的能力差距获得的最佳的资源分配，并且更加超过相等的力量分发。同时，多点传送对在OFDM系统的资源利用显著地有益。

简介：Blindrecognitionofconvolutionalcodesisnotonlyessentialforcognitiveradio,butalsofornon-cooperativecontext.Thispaperisdedicatedtotheblindidentificationofratek/nconvolutionalencodersinanoisycontextbasedonWalsh-Hadamardtransformationandblockmatrix(WHT-BM).Theproposedalgorithmconstructsasystemofnoisylinearequationsandutilizesallitscoefficientstorecoverparitycheckmatrix.Itisabletomakeuseoffault-tolerantfeatureofWHT,thusprovidingmoreaccurateresultsandachievingbettererrorperformanceinhighrawbiterrorrate(BER)regions.Moreover,itismorecomputationallyefficientwiththeuseoftheblockmatrix(BM)method.

简介：AMultimediastreamsdynamicratecontrolalgorithmbasedonFuzzyadaptivePID(MFPID)hasbeenproposedtoimplementmultimediastreams'endsendingrateon-lineself-regulatingandsmoothing,andtotracksystemresourcesintime,sothatitcanavoidsystem'sregulatingoscillationandguaranteesystem'sstability.And,someworkhasbeendonetoanalyzeadaptivesessionmodelofmultimediastreams,toimplementfutureavailablebandwidthestimationofIPnetwork,toachievePIDparameters'on-lineself-tuningbyfuzzycontrolling.SimulationvalidatedthetheoreticalresultsofMFPID.

简介：一台哑的收音机和与普通接收装置同时交流的多重认知收音机被考虑的一种情形。在这份报纸，我们在两添加剂白人Gaussian噪音(AWGN)下面导出多重用户的认知多重存取的隧道(MUCMAC)的一个可完成的率区域隧道和rayleigh褪色隧道，由使用多重用户的联合弄脏编码的纸(DPC)和编码的重叠。通过认知，这被假定第二等的用户(怀疑)能获得主要用户(PU)的消息非有原因地预先准备。用这个方面信息，SUs能执行多重用户DPC从苏避免干扰。而且，SUs能也分配他们的transmit力量的部分帮助PU，用编码的重叠。因此，传统的多重存取的隧道(MAC)的能力区域能被扩大。而且，一些asymptotic结果作为数字被显示出怀疑增加。在AWGN盒子中，PU的最大的可完成的率随数字的增加对数地成长，这被说明，在瑞利盒子中怀疑，我们证明认知获得将与隧道信号减少到噪音比率(SNR)增加。

简介：Somesufficientconditionsfortheglobalexponentialstabilityandlowerboundsontherateofexponentialconvergenceofthecellularneuralnetworkswithdelay(DCNNs)areobtainedbymeansofamethodbasedondelaydifferentialinequality.Themethod,whichdoesnotmakeuseofanyLyapunovfunctionals,issimpleandvalidforthestabilityanalysisofneuralnetworkswithdelay.Somepreviouslyestablishedresultsinthispaperareshowntobespecialcassesofthepresentedresult.

简介：Synchronouschipsealisanadvancedroadconstructingtechnology,andthegravelcoveragerateisanimportantindicatoroftheconstructionquality.Inthispaper,anovelapproachforgravelcoverageratemeasurementisproposedbasedondeeplearning.Convolutionalneuralnetwork(CNN)isusedtosegmenttheimageofgroundcoveredwithgravels,andthegravelcoveragerateiscomputedbythepercentageofgravelpixelsinthesegmentedimage.Thegravelcoverageratedatasetformodeltrainingandtestingisbuilt.Theperformanceoffullyconvolutionalneuralnetwork(FCN)andU-Netmodelinthedatasetistested.AbettermodelnamedGravelNetisconstructedbasedonU-Net.Thescaledexponentiallinearunit(SELU)isemployedintheGravelNettoreplacethepopularcombinationofrectifiedlinearunit(ReLU)andbatchnormalization(BN).Dataaugmentationandalphadropoutareperformedtoreduceoverfitting.Theexperimentalresultsdemonstratetheeffectivenessandaccuracyofourproposedmethod.OurtrainedGravelNetachievesthemeangravelcoveragerateerrorof0.35%ontestdataset.

简介：与变化的流行延期敏感的服务，怎么为活动用户(亩)保证延期得到要求是为在绿云收音机存取网络(Crun)的downlinkbeamformer设计的大挑战。在这份报纸，我们与分离的率改编认为延期知道的downlinkbeamforming的问题最小化Crun的电源消费。我们经由一个混合整数处理这个问题非线性的节目(MINLP)，然后再用形式表示是的MINLP问题一个混合整数秒顺序锥程序(MI-SOCP)，它当整数变量作为连续的被放松时，是一个凸的程序。把明确的表达基于这，一个放气算法，其计算复杂性是多项式，被建议导出非最优的答案。模拟结果被介绍验证我们的建议算法的有效性。

简介：Space-TimeBlock(STB)codehasbeenaneffectivetransmitdiversitytechniqueforcombatingfadingduetoitsorthogonaldesign,simpledecodingandhighdiversitygains.Inthispaper,aunit-ratecomplexorthogonalSTBcodeformultipleantennasinTimeDivisionDuplex(TDD)modeisproposed.Meanwhile,TurboCoding(TC)isemployedtoimprovetheperformanceofproposedSTBcodefurtherbyutilizingitsgoodabilitytocombatthebursterroroffadingchannel.Comparedwithfull-diversitymultipleantennasSTBcodes,theproposedcodecanimplementunitrateandpartialdiversity;andithasmuchsmallercomputationalcomplexityunderthesamesystemthroughput.Moreover,theapplicationofTCcaneffectivelymakeupfortheperformancelossduetopartialdiversity.SimulationresultsshowthatontheconditionofsamesystemthroughputandconcatenationofTC,theproposedcodehaslowerBitErrorRate(BER)thanthosefull-diversitycodes.

简介：设计的一条改进欧几里德几何学的几何学途径伪周期(质量管理)有高率、低的错误地板的低密度的同等值检查(LDPC)代码被论述。构造QC-LDPC代码与高率比原来的代码有更低的错误地板。最小的重量codeword的分发被分析，并且最小的重量codeword的一个足够的存在条件被发现。很多QC-LDPC与更低的错误地板编码的模拟表演能被减少最小的重量codewords的数字设计令人满意这个足够的条件。

简介：Anultra-highspeed1:2demultiplexerforopticalfibercommunicationsystemsisdesignedutilizingtheIHP0.25μmSiGeBiCMOStechnology.Thelatchofthedemultiplexercorecircuitisresearched.Basedonthecurrentmeasurementcondition,ahigh-gainandwide-bandwidthclockbufferisdesignedtodrivelargeload.Transmissionlinetheoryforultra-highspeedcircuitsisusedtodesignmatchingnetworktosolvethematchingproblemamongtheinput,outputandinternalsignals.Thetransientanalysisshowsthatthisdemultiplexercandemultiplexone100Gb/sinputintotwo50Gb/soutputs.Thechipareaofitis0.7mm×0.47mm,theinputandoutputdataarebothat400mVP-PPCMLstandardvoltagelevel,andthepowerconsumptionoftheICis900mWatthepowersupplyof-4V.

简介：Thepapermainlystudiesthesum-rateperformanceoflimitedfeedback(LFB)block-diagonalization(BD)inmulti-userdistributedantennasystem(DAS).Asthechannelstateinformation(CSI)fedbacktobasestation(BS)islimited,multi-userinterference(MUI)iscausedinevitablybecauseofthequantizationerror.ConsideringtheinfluenceoftheMUItothecapacityofDAS,weproposeaparameterofeffectivesum-rateratio(ESRR)todenotethecapacityoffsetundertheconditionoftheBScangetperfectCSIandlimitedCSIfirst,thenweconfirmthattheapproximatedESRRisveryclosetoactualESRRgotthroughsimulations.Afterthat,basedontheapproximatedESRR,anadaptiveminimumbitfeedbackschemewhichcaneffectivelyreducetheoverheadoffeedbackchannelandthecomplexityofthesystemisproposed.Simulationresultsshowtheeffectivenessoftheproposedscheme.