简介：Anadaptiveinterferencecancleralgorithmbasedonfourth-ordercumulantisproposedtoovercomethefaultofconventionalautocorrelation-basedLeastMeanSquare(LMS)algorithmwhichcannotsuppressthecorrelatedGaussiannoises.Therecursiveformulationoftheproposedalgorithmisgiventoreduceitscomputationalcomplexity.Thesimulationresultsarepresentedtodemonstratetheeffectivenessofthisnovelapproach.

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简介：Operationalsoftwaresystemsoftenexperiencean'aging'phenomenon,characterizedbyprogressiveperformancedegradationandasuddenhang/crashfailure.Softwarerejuvenationisaproactivefault-tolerancestrategyaimedtopreventunexpectedoutagesduetoaging.Anewrejuvenationstrategybasedonmeasurementandtime,andconstructsaSRNmodeltoevaluatethisstrategy.Numericalresultsshowthatthisstrategyoutweighseitherthepurelymeasurementbasedorthepurelytime-basedstrategyandcaneffectivelyimprovesystemperformance.

简介：Recentprogressesmadebyauthorsonmonochromaticandtunableterahertz(THz)generationbasedonnonlinearopticsarereviewed,includingTHzparametricoscillation(TPO)anddifferencefrequencygeneration(DFG).Fromthetechnicalpointofview,wedevelopextra-andintra-cavitysurface-emittedTPO,aswellasDFGwithQPM-GaAscrystal.Fromthepointofviewofmechanism,Cherenkovphase-matchingiscomprehensivelyinvestigatedinbothbulkcrystalandplanarwaveguide.AnovelschemeforcascadingenhancedCherenkovDFGinwaveguideisproposed.Fromthepointofviewofmaterial,organiccrystal4-N,N-dimethylamino-4’-N’-methyl-stibazoliumtosylate(DAST)isutilizedasthenonlinearmedium.

简介：Statisticalshapepriormodelisemployedtoconstructthedynamicsinprobabilisticcontourestimation.Byapplyingprincipalcomponentanalysis,plausibleshapesamplesareefficientlygeneratedtopredictcontoursamples.Basedontheshape-dependentdynamicsandprobabilisticimagemodel,aparticlefilterisusedtoestimatethecontourwithaspecificshape.Comparedwiththedeterministicapproachwithshapeinformation,theproposedmethodissimpleyetmoreeffectiveinextractingcontoursfromimageswithshapevariationsandocclusion.

简介：FractionalBrownianmotion,continuouseverywhereanddifferentiablenowhere,offersaconvenientmodelingforirregularnonstationarystochasticprocesseswithlong-termdependenciesandpowerlawbehaviorofspectrumoverwiderangesoffrequencies.Itshowshighcorrelationatcoasescaleandvariesslightlyatfinescale,whichissuitableforandsuccessfulindescribingandmodelingnaturalscenes.Ontheotherhand,man-madeobjectscanbeconstructivelywelldescribedbyusingasetofregularsimpleshapeprimitivessuchasline,cylinder,etc.andarefreeoffractal.Basedonthedifference,weprovideamethodtodiscriminateman-madeobjectsfromnaturalscenes.Experimentsareusedtodemonstratedthegoodefficiencyofthedevelopedtechnique.

简介：与密码学的快速的发展，安全协议和加密算法的力量过量地依靠随机数的质量。在许多密码学应用程序，更高的速度是要求的引用之一。新安全随机数生成程序体系结构被介绍。它的哲学建筑学与FPGA被实现，基于热噪音和线性反馈位移寄存器(LFSR)。热噪音initializesLFSRs并且被用作系统的打扰的来源保证生产随机数的unpredictability并且改进系统的安全力量。平行LFSR能与长时期和更高的速度生产伪随机数。建议建筑学罐头在密码学满足高质量、高的速度的要求。

简介：TherearetwomajorapproachesforBlindSignalSeparation(BSS)problem:MaximumEntropy(ME)andMinimumMutualInformation(MMI)algorithms.BasedontherecursivearchitectureandtherelationshipbetweentheMEandMMIalgorithms,anExtendedME(EME)algorithmisproposedbyusingprobabilitydensityfunction(pdf)estimationoftheoutputstodeducethecorrespondingiterativeformulasinBSS.Basedonthesimulationresults,itcanbeconcludedthattheproposedalgorithmhasbetterperformancesthanthetraditionalMEalgorithminconvolutemixtureBSSproblems.

简介：Accordingtothecharacteristicsofneuralsignal,alow-voltageandhigh-speedoperationaltransconductanceamplifierhasbeenrealizedasadirectreadoutcircuit.Toreducethesizeandcostofthischip,theamplifierusesfeedforwardcompensationtechniquewithoutMillercapacitor.Usingcapacitorsasaclosed-loopfeedbacknotonlyamplifiestheneuralsignal,butalsoreduceschippowerconsumptionbyreplacingthefeedbackresistor.Simulationswerecarriedoutwith0.18mCMOStechnology,andthesimulationresultssatisfiedtherequirementsofneuralsignal.

简介：Thepaperdescribesatexture-basedfasttextlocationschemewhichoperatesdirectlyintheDiscreteWaveletTransform(DWT)domain.Bythedistinguishingtexturecharacteristicsencodedinwavelettransformdomain,thetextisfastdetectedfromcomplexbackgroundimagesstoredinthecompressedformatsuchasJPEG2000withoutfulldecompress.Comparedwithsometraditionalcharacterlocationmethods,theproposedschemehastheadvantagesoflowcomputationalcost,robusttosizeandfontofcharactersandhighaccuracy.Preliminaryexperimentalresultsshowthattheproposedschemeisefficientandeffective.

简介：Basedontheprinciplesofthevisualcryptographyandthelawoflargenumbers,theunexpandedsharesaregeneratedduringtheprocessesofembeddingandverifyingthehiddenwatermark.Thewatermarkembeddingisdoneinthefrequencydomain,whichcanbedecodedbythehumanvisualsystem(HVS)withoutthenecessityofanycomplicatedcomputationandthehelpoftheoriginalimage.Experimentalresultsindicatedthatourmethodhadagoodrobustnessondarkening,lightening,blurring,sharpening,noise,distorting,jitter,jointphotographicexpertsgroup(JPEG)compression,andcropattacks.

简介：Theperformanceofadaptivebeamformingtechniquesislimitedbythenonhomogeneouscluttersce-nario.AnaugmentedKrylovsubspacemethodisproposed,whichutilizesonlyasinglesnapshotofthedataforadaptiveprocessing.ThenovelalgorithmputstogetheradatapreprocessorandadaptiveKrylovsubspacealgo-rithm,wherethedatapreprocessorsuppressesdiscreteinterferenceandtheadaptiveKrylovsubspacealgorithmsuppresseshomogeneousclutter.Thenovelmethodusesasinglesnapshotofthedatareceivedbythearrayantennatogenerateacancellationmatrixthatdoesnotcontainthesignalofinterest(SOI)component,thus,itmitigatestheproblemofhighlynonstationaryclutterenvironmentandithelpstooperateinreal-time.Thebenefitofnotrequiringthetrainingdatacomesatthecostofareduceddegreeoffreedom(DOF)ofthesystem.Simulationillus-tratestheeffectivenessincluttersuppressionandadaptivebeamforming.Thenumericresultsshowgoodagreementwiththeproposedtheorem.

简介：双光的排水量传感器被介绍与单身者相比获得更高的精确性。系统的结构和原则也被介绍，并且硬件和软件也被引进。系统的函数通过实验是可行的并且基于FPGA模仿数据进程。CLC数字TH822

简介：我们构造稀少的表示和subspace表示的一个合作模型。首先，我们代表追踪在原则部件分析(PCA)指向subspace，然后我们采用L1规则化限制剩余学期的稀少，限制表示系数的稀少的一个L2规则化学期，并且限制在重建和目标之间的距离的一个L2标准。然后，我们在粒子过滤器框架实现算法。而且，一个反复的方法被介绍得到剩余和系数的全球最小。最后，一个其他的模板更改计划被采用避免被不精密的更改引起的追踪的飘移。在实验，我们在9个序列上测试算法，并且把结果与5个state-of-art方法作比较。根据结果，我们能断定我们的算法比另外的方法更柔韧。

简介：ＭｏｔｉｏｎＥｓｔｉｍａｔｉｏｎＢａｓｅｄｏｎＧｌｏｂａｌａｎｄＬｏｃａＣｏｍｐｅｎｓａｂｉｌｉｔｙＡｎａｌｙｓｉｓTXＭｏｔｉｏｎＥｓｔｉｍａｔｉｏｎＢａｓｅｄｏｎＧｌｏｂａｌａｎｄＬｏｃａｌＣｏｍｐｅｎｓａｂｉｌｉｔｙＡｎａｌｙｓｉｓＦａｎＪｉｎ...

简介：FractionalBrownianmotion,continuouseverywhereanddifferentiablenowhere,offersaconvenientmodelingforirregularnonstationarystochasticprocesseswithlong-termdependenciesandpowerlawbehaviorofspectrumoverwiderangesoffrequencies.Itshowshighcorrelationatcoarsescaleandvariesslightlyatfinescale,whichissuitableforandsuccessfulindescribingandmodelingnaturalscenes.Ontheotherhand,man-madeobjectscanbeconstructivelywelldescribedbyusingasetofregularsimpleshapeprimitivessuchasline,cylinder,etc.andarefreeoffractal.Basedonthedifference,amethodtodiscriminateman-madeobjectsfromnaturalscenesisprovided.Experimentsareusedtodemonstratethegoodefficiencyofdevelopedtechnique.

简介：Aimingatthetraditionalpassivedeceptionmodels,thispaperconstructsaDecoyPlatformbasedonIntelligentAgent(DPIA)torealizedynamicdefense.Thepaperexploresanewdynamicdefensemodelbasedonactivedeception,introducesitsarchitecture,andexpatiatesoncommunicationmethodsandsecurityguaranteeininformationtransference.SimulationresultsshowthattheDPIAcanattracthackeragilityandactivity,leadabnormaltrafficintoit,distributealargenumberofattackdata,andensurerealnetworksecurity.

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简介：Inthispaper,weproposeandexperimentallydemonstrateamethodtorealizeapolarizationdetectorbyusingacommerciallyavailablepolymethylmethacrylate(PMMA)pipe.Anasymmetricpolarization-relatedstructureisfabricatedbyetchingdifferentgratingstructuresontheexternalsurfaceofthepipe.Theresultsshowthatwhenthepiperotatesupto90°,thepeakofthetransmissionspectrumcanevidentlyshifttowardsthelowfrequency,whichmeansthepipewithgratingstructurescanserveasapolarizationdetector.Thisdesignpossessesthemeritsofasimplestructureandeasyfabrication.

简介：Thequantumtheoryapplicationisahotresearchareainrecentyears,especiallythetheoryofquantummechanics.Inthispaper,wefocusontheresearchofimagesegmentationbasedonquantummechanics.Firstly,thetheoryofquantummechanicsisintroduced;afterwards,areviewofimagesegmentationmethodsbasedonquantummechanicsispresented;andfinally,thecharacteristicsaboutthequantummechanicsappliedtoimageprocessingareconcluded.Twomainresearchtopicsarediscussedinthispaper.Oneistoemphasizethatquantummechanicscanbeappliedindifferentresearchareas,suchasimagesegmentation,andthesecondistoconcludesomemethodsinimagesegmentationandgivesomesuggestionsforpossiblenovelmethodsbyapplyingquantummechanicstheory.Asasummary,thisisareviewpaperwhichpresentssomemethodsbasedonthefeasibletheoryinquantummechanicsaimingatachievingabetterperformanceinimagesegmentation.