简介：Anewadaptiveestimatorfordirectsequencespreadspectrum(DSSS)signalsusingfourth-ordercumulantbasedadaptivemethodisconsidered.Thegeneralhigher-orderstatisticsmaynotbeeasilyappliedinsignalprocessingwithtoocomplexcomputation.Basedonthefourth-ordercumulantwith1-Dslicesandadaptivefilters,anefficientalgorithmisproposedtosolvetheproblemandisextendedfornonstationarystochasticprocesses.Inordertoachievetheaccurateparameterestimationofdirectsequencespreadspectrum(DSSS)signals,thefirststepusesthemodifiedfourth-ordercumulanttoreducethecomputingcomplexity.Whilethesecondstepemploysanadaptiverecursivesystemtoestimatethepowerspectruminthefrequencydomain.Inthecaseofinterceptedsignalswithoutlargeenoughdatasamples,theestimatorprovidesgoodperformanceinparameterestimationandwhiteGaussiannoisesuppression.Computersimulationsareincludedtocorroboratethetheoreticaldevelopmentwithdifferentsignal-to-noiseratioconditionsandrecursivecoefficients.

简介：Anon-intrusivedesignformonitoringeverydayactivitiesofanelderlypersonispresented.Theproposedsystemisintendedtobeusedinthebedroom,allowingtheelderstostayathomeinasafeenvironment.Therequiredhardwaredesignissimpleinstructureandcosteffective.ThesensordesignisimplementedbyusingcapacitivesensorsandanArduinomicrocontrollerunit.Andarealtimegraphicaluserinterfaceisimplementedtomonitortheelderlyperson.Theperformanceanalysisshowsthatthesensordesignisabletodifferentiatebetweenahumanbodyandahousepet.

简介：Thefeaturesofnon-voicesignalsonpubliccommunicationnetsareanalyzedandanapproachtodistinguishsuchsignalsisintroducedinthispaper.Itisthefirsttimeforthesystemtomeetthreekeytargets:large-scale,highrecognitionrateandlowfalsealarmatthesametime.

简介：Assemblingindividuallinephasefilterstoformamulti-channelfilterbankallowsthesynthesisfiltertobesimilartocorrespondinganalysisfilters,andthedesigncalculationcanbesimple.Theappropriaterelationsbetweensynthesisfiltersandanalysisfilterseliminatemostaliasingresultingfromdecimationinnon-uniformmaximallydecimatingfilterbanks,andLSalgorithmandRemezalgorithmareusedtooptimizethecompositecharacter.ThisdesignmethodcanachieveapproximatePerfect-Reconstruction.Anexampleisgiveninwhichthegeneralparameterfilterswithapproximatelinephaseareusedasunitsofafilterbank.

简介：Thecharacteristicsoflow-frequencyelectricalnoise,voltage-current(V-I)andelectricalderivationfor980nmInGaAsP/InGaAs/GaAshighpowerdoublequantumwelllasers(DQWLs)aremeasuredunderdifferentconditions.Thecorrelationofthelow-frequencyelectricalnoisewithsurfacenon-radiativecurrentofdevicesisdiscussed.Theresultsindicatethelow-frequencyelectricalnoiseof980nmDQWLswithhighpowerismainly1/fnoiseandhasgoodrelationwiththedevicesurfacecurrentatlowinjection.

简介：适应调整并且(AMC)编码提供灵活性匹配调整和编码计划(MCS)加用户的噪音比率(SINR)发信号到干扰。为了减少传播，驱动并且维持传播质量，力量控制通常与AMC被相结合。当力量控制的目标SINR被修理时，为AMC(NPGA)算法的因此非合作的力量控制游戏被建议根据MCS适应动态目标SINR变化。在NPGA，我们经由用途提出系统传播效率，在实用程序函数基于调整被构造并且与非合作的游戏理论编码效率的地方。NPGA能满足supermodular比赛的条件，这理论上被表明，并且它的答案是最佳的。模拟结果证明NPGA能与低传播力量，和NPGA的集中性能改进系统传播效率和信号质量与几何编程算法相比是更快有效性的。

简介：Byaccuratelymeasuringthedisplacementbetweentherollersurfaceandtheopticalfiberproberelativetoanullposition,wecantesttherollerwear.Thewholetestingmethodandsystemwereintroduced.Eachpartofthetestingsystemwasillustrated.Andalsoanovelfiber-opticsensorwiththreeprobesinequaltransversespaceisadopted.Usingthissensor,theeffectsoffluctuationsinthelightsource,reflectivitychangingoftargetsurfaceandtheintensitylossesinthefiberlinesareautomaticallycompensated.Thismethodofferssuchadvantagesasnon-contact,noelectromagneticinterference,simplicity,lowcost,highsensitivity,goodaccuracyandstability.

简介：EnergyisthedeterminantfactorforthesurvivalofMobileSensorNetworks(MSN).Basedontheanalysisoftheenergydistributioninthispaper,atwo-phaserelocationalgorithmisproposedbasedonthebalancebetweentheenergyprovisionandenergyconsumptiondistribution.Ourmainobjectivesaretomaximizethecoveragepercentageandtominimizethetotaldistanceofnodemovements.Thisalgorithmisdesignedtomeettherequirementofnon-uniformdistributionnetworkapplications,toextendthelifetimeofMSNandtosimplifythedesignoftheroutingprotocol.Inad-dition,testresultsshowthefeasibilityofourproposedrelocationalgorithm.

简介：声音变换(VC)基于Gaussian混合模型(GMM)是变换来源光谱指向光谱的最经典、普通的方法。然而，这个方法对敏感因为它的frame-by-frame变换在恰当上。有非否定的矩阵因式分解(NMF)的VC在这份报纸被介绍，它能阻止光谱由调整基础向量(字典)的尺寸在恰当上。以便认识到更好的非线性的印射，核NMF(KNMF)被采用完成印射的光谱。另外，增加变换的精确性，与GMM(GKNMF)相结合的KNMF也被介绍进VC。最后，KNMF，GKNMF，GMM，主要部件回归(PCR)，与GMM(GPCR)相结合的PCR，部分最不方形的回归(PLSR)，变弯的NMF基于关联的频率(NMF-CFW)和深神经的网络(DNN)方法与对方相比。建议GKNMF在客观评估和主观评估得到更好的性能。

简介：Lowpowerconsumptionisamajorissueinnowadayselectronicssystems.ThistrendispushedbythedevelopmentofdatacenterrelatedtocloudservicesandsoontotheInternetofThings(IoT)deployment.Memoriesareoneofthemajorcontributorstopowerconsumption.However,thedevelopmentofemergingmemorytechnologiespavesthewaytolow-powerdesign,throughthepartialreplacementofthedynamicrandomaccessmemory(DRAM)withthenon-volatilestand-alonememoryinserversorwiththeembeddedordistributedemergingnon-volatilememoryinIoTobjects.Inthelattercase,non-volatileflip-flops(NVFFs)seemapromisingcandidatetoreplacetheretentionlatch.Indeed,IoTobjectspresentlongsleeptimeandNVFFsoffertosavedatainregisterswithzeropowerwhentheapplicationisidle.ThispapergivesanoverviewofNVFFarchitectureflavorsforvariousemergingmemorytechnologies.

简介：Amodifiednon-coherentsequentialdetectiondecisionlogicbasedoncontinuousaccumulationtoachievefastPNcodeacquisitionisproposed.Tosimplifythedesignandanalysis,theequivalentrelationshipbetweenthelikelihoodratioofthecurrentsampleandthatofalltheprevioussamplesisdeduced.Theschemeisprovedtobeanoptimumsequentialdetectionundercertainassumptions.Becausetheaveragesamplenumber(ASN)cannotbecalculatedthroughthemethodsappliedtotheconventionalsequentialdetection,analgorithmisalsoprovided,whichcanestimateboththeprobabilitydensityfunction(pdf)andtheupperthresholeofASN.Thedesiredprobabilitiesoffalsealarmanddetection,aswellasfasterPNcodeacquisitioncomparedtotheconventionalsequentialdetectioncanbeachievedbyemployingthisstructure.Inaddition,Rayeigh-fadedreceptioncaseisalsotakenintoconsideration.Performancesoftheproposedschemesareobtained,whichsuggestthattheproposednon-coherentsequentialdetectionismoredesirable.

简介：根据在噪音环境的语音识别系统的识别率的衰落，一改善感性地不一致光谱压缩特征抽取算法在这份报纸被提出。这个方法能认识到讲话信号的有效压缩并且做训练和识别环境更多的匹配，因此识别率能在噪音环境被改进。由在聪明的轮椅站台上试验，结果证明算法罐头有效地提高语音识别的坚韧性，并且在噪音环境保证识别率。

简介：Traditionaldigitalprocessingapproachesarebasedonsemiconductortransistors,whichsufferfromhighpowerconsumption,aggravatingwithtechnologynodescaling.Tosolvedefinitivelythisproblem,anumberofemergingnon-volatilenanodevicesareunderintenseinvestigations.Meanwhile,novelcomputingcircuitsareinventedtodigthefullpotentialofthenanodevices.Thecombinationofnon-volatilenanodeviceswithsuitablecomputingparadigmshavemanymeritscomparedwiththecomplementarymetal-oxide-semiconductortransistor(CMOS)technologybasedstructures,suchaszerostandbypower,ultra-highdensity,non-volatility,andacceptableaccessspeed.Inthispaper,weoverviewandcomparethecomputingparadigmsbasedontheemergingnanodevicestowardsultra-lowdissipation.

简介：Non-centernetworkcomputingenvironmentshavesomeuniquecharacteristics,suchasinstability,heterogeneity,autonomy,distributionandopenness,whichbringseriousissuesofsecurityandreliability.Thisarticleproposesabrand-newcredibilityprotectionmechanismforresourcesharingandcollaborationinnon-centernetworkcomputingenvironments.First,thethree-dimensionalhierarchicalclassifiedtopology(3DHCT)isproposed,whichprovidesabasicframeworkforrealizationsoftheidentitycredibility,thebehaviorcredibilityandthecapabilitycredibility.Next,theagenttechnologyisutilizedtoconstructthecredibilityprotectionmodel.Thisarticlealsoproposesanewcomprehensivecredibilityevaluationalgorithmwithsimple,efficient,quantitativeandabletomeettherequirementsofevaluatingbehaviorcredibilityandthecapabilitycredibilityevaluationaswell.TheDempster-Shafertheoryofevidenceandthecombinationruleareusedtoachievetheevaluationofthecapabilitycredibility.Thebehaviorcredibilityisevaluatedwiththecurrentandhistoricalperformanceofnodesforprovidersandconsumerstorealizemoreaccurateprediction.Basedonthenon-centernetworkcomputingsimulationtestplatform,simulationisbeenconductedtotesttheperformanceandvalidityoftheproposedalgorithms.Experimentandanalysisshowthattheproposedalgorithmsaresuitableforlarge-scale,dynamicnetworkcomputingenvironments,andabletomaintainthecredibilityfornetworkswithoutrelyingoncentralnode,makeanon-centernetworkgraduallyevolveintoanorderly,stableandreliablecomputingenvironmentefficiently.

简介：Multilayerdielectricthinfilmedgefilterhasseriouspolarizationsensitivityunderobliqueincidence.Thecutoff-bandsofthes-polarizationandp-polarizationlightinconventionaledgefilterwillseparateobviouslyunder45°obliqueincidence,whichlimitsitsapplication.BasedonthetwochosenmaterialsTiO2andSiO2,anovelstackstructureisproposedtodesignthenon-polarizationshort-wave-passthinfilmedgefilter.Byusingthe(4H4L4H)asthematchinglayers,thepolarizationseparationat3dBtransmittanceforthethinfilmedgefiltercutoff-bandislessthan1nmattheincidentangleof45°.Inthisway,thenon-polarizationshort-wave-passedgefilteriseasilydesignedandfabricated.

简介：我们建议旋转传感器在一个磁性的头的一个核心基于一个纤维布拉格栅栏(FBG)包装了的新奇非接触，它从圆形的磁性的扶手统治者把介绍紧张变换成旋转信息。一个数学模型为处理一个讯问者获得的数据被造，并且大小的精确性和决定被改变传感器的圆形的磁性的扶手统治者，以及尺寸的半径和时期分析。它在有旋转角度上的理论分析的好一致的试验性的结果表演，和恰当的结果显示从旋转传感器获得的结果与0.998的线性和大约0.01的一个标准错误与真实旋转速度匹配很好。

简介：Thispaperpresentsthelowerboundsandupperboundsforthemeanvalueandvarianceofdistancedistributionofnon-linearcodesinGF(q).Bypresentingseveralexamples,itisshownthattheseboundscouldbeachieved.

简介：Thispaperproposesanoveliterativealgorithmforoptimaldesignofnon-frequency-selectiveFiniteImpulseResponse(FIR)digitalfiltersbasedonthewindowingmethod.DifferentfromthetraditionaloptimizationconceptofadjustingthewindoworthefilterorderinthewindowingdesignofanFIRdigitalfilter,thekeyideaofthealgorithmisminimizingtheapproximationerrorbysucces-sivelymodifyingthedesignresultthroughaniterativeprocedureundertheconditionofafixedwindowlength.Intheiterativeprocedure,theknowndeviationofthedesignedfrequencyresponseineachiterationfromtheidealfrequencyresponseisusedasareferenceforthenextiteration.Becausetheapproximationerrorcanbespecifiedvariably,thealgorithmisapplicableforthedesignofFIRdigitalfilterswithdifferenttechnicalrequirementsinthefrequencydomain.Adesignexampleisemployedtoillustratetheefficiencyofthealgorithm.

简介：我们理论上并且试验性地显示出在信号之间的比率的影响并且更闲散在连续波浪(CW)在获得特征上从PIA部分产生了抽非退化的串联阶段敏感的纤维光参量的放大器(PS-FOPA)。结果证明使用产生更闲散的罐头的高度非线性的纤维(HNLF)的长度引起力量比率在之间的变化更闲散并且在小信号获得条件下面表明PS-FOPA的特征，它显著地影响获得。为了高获得，增加，选择长HNLF产生更好更闲散。在我们的实验，5.5dB获得和18nm带宽(开／关获得>10dBm)当300m长的HNLF在PIA被使用而不是200m长的HNLF时，在PS-FOPA，罐头被完成。

简介：Anideaofestimatingthedirectsequencespreadspectrum(DSSS)signalpseudo-noise(PN)sequenceispresented.WithouttheapriorityknowledgeabouttheDSSSsignalinthenon-cooperationcondition,weproposeaself-organizingfeaturemap(SOFM)neuralnetworkalgorithmtodetectandidentifythePNsequence.Anon-supervisedlearningalgorithmisproposedaccordingtheKohonenruleinSOFM.TheblindalgorithmcanalsoestimatethePNsequenceinalowsignal-to-noise(SNR)andcomputersimulationdemonstratesthatthealgorithmiseffective.Comparedwiththetraditionalcorrelationalgorithmbasedonslip-correlation,theproposedalgorithm’sbiterrorrate(BER)andcomplexityarelower.