简介：一条高效轨道和抓住(T/H)电路设计因为高分辨率的高速度的analog-to-digital变换器(模数转换器)被介绍，它在0.18m互补金属氧化物半导体过程被实现了。一改善自举，切换体积的技术被介绍极大地在宽带宽，和增加上最小化采样网络的非线性一修改预先控告减少全部的电源消费的电路帮助。试验性的结果证明建议T/H电路以100MHz采样率完成超过77dBSFDR(假免费的动态范围)和70dBTHD(全部的泛音失真)并且当消费47mW电源时，与输入频率维持性能直到305MHz。

简介：一个高速度的X光检查非破坏性的察觉者在这份报纸被设计。X光检查非破坏性的察觉的原则被分析，并且高速度的X光检查非破坏性的察觉者的一个一般系统计划被建议。Virtex-4系列Fx12FPGA芯片被用来设计它的硬件电路，PowerPC405嵌入系统被开发，处理算法的高速度的图象被使用编译它的处理软件，并且TCP/IP协议被采用编译通讯软件，认识到高速度的X光检查信号聚会，处理并且传播。试验性的结果显示察觉者能在关联词工业地里与钢电线绳被用于生产线的长途、联机的非破坏性的察觉，例如矿，港口和码头。当察觉者的调查宽度是1.6m时，conveyer带的跑的率能完成6m/s。

简介：Weexperimentallydemonstratethemultiplesignalmodulationonasingleclass10Gverticalcavitysurfaceemittinglaser(VCSEL)carrierat1310nmfornextgenerationmulticast-enableddatacenternetworks.A10Gbit/sdatasignalisdirectlymodulatedontoasinglemodeVCSELcarrier.Tomaximizecarrierspectralefficiency,a2GHzreferencefrequency(RF)clocktoneissimultaneouslymodulatedontheVCSELphaseattribute.TheinherentVCSELorthogonalpolarizationbistabilitywithchangingbiascurrentisfurtherexploitedintransmissionofapolarizationbasedpulsepersecond(PPS)timingclocksignal.Therefore,wesimultaneouslytransmita10Gbit/sdirectlymodulateddata,2GHzphasemodulatedRFandapolarization-basedPPSclocksignalsusingasinglemode10GHzbandwidthVCSELcarrier.Itisthefirsttimethatasingleclass10GVCSELcarrierisreportedtotransmitadirectlymodulateddata,phasemodulatedRFclockandpolarizationbasedPPStimingsignalsimultaneouslyinasinglewavelength.AofG.652singlemodefibre(SMF)transmissionover3.21kmisexperimentallyattained.Areceiversensitivityof-15.60dBmisexperimentallyobtainedforthedirectlymodulated10Gbit/sdatasignal.A3.21-km-longSMFtransmissionintroducesapenaltyof0.23dBtothedatasignal.Thecontributionofa2GHzphasemodulatedRFandapolarization-basedPPSclocksignaltothispenaltyisfoundtobe0.03dB.AnRFsingle-sideband(SSB)phasenoisevaluesof-82.36dBc/Hzand-77.97dBc/Hzareattainedwithoutandwithsimultaneousdirectlymodulateddataandpolarization-basedPPSclocksignalsrespectivelyfora3.21-km-longSMFtransmission.Thisworkprovidesanalternativeefficientandcosteffectivetechniqueforsimultaneoushigh-speedmultipleinformationtransmissiontodifferentnetworknodeswithinadatacenternetworkthroughsharednetworkinfrastructure.

简介：Withtheadventoflarge-scaleandhigh-speedIPv6networktechnology,aneffectivemulti-pointtrafficsamplingisbecominganecessity.Adistributedmulti-pointtrafficsamplingmethodthatprovidesanaccurateandefficientsolutiontomeasureIPv6trafficisproposed.TheproposedmethodistosampleIPv6trafficbasedontheanalysisofbitrandomnessofeachbyteinthepacketheader.Itoffersawaytoconsistentlyselectthesamesubsetofpacketsateachmeasurementpoint,whichsatisfiestherequirementofthedistributedmulti-pointmeasurement.Finally,usingrealIPv6traffictraces,theconclusionthatthesampledtrafficdatahaveagooduniformitythatsatisfiestherequirementofsamplingrandomnessandcancorrectlyreflectthepacketsizedistributionoffullpackettraceisproved.

简介：Inordertodecreasedispersionpenaltyandincreasetheopticalbandwidthefficiency,anopticalsingle-side-bandmodulation(SSBM)schemeinsub-carriermultiplexing(SCM)isproposed.TheprincipleoftheSSBMisanalyticallypresented,andaconfigurationforgeneratingopticalSSBsignalisproposedusingabalancedMach-Zehnderelectro-opticmodulator.

简介：Anewapproach,basedonthewaveformrelaxationtechniqueandfastWalshtrans-form,ispresentedtoanalyzethecoupledloosytransmissionlines(CLTL)witharbitraryterminalnetworks.Thesimulationaccuracyofthenewmethodcanbegreatlyimproved,thedisadvantagewhichalwaysexistsinpreviousmethodscanbeavoidedandaconsiderablesavingintimeandmemoryofCPUisobtained.

简介：Thepaperfirstdiscussesshortcomingsofclassicaladjacent-framedifference.Secondly,basedontheimageenergyandhighorderstatistic(HOS)theory,backgroundreconstructionconstraintsaresetup.Underthehelpofblock-processingtechnology,backgroundisreconstructedquickly.Finally,backgrounddifferenceisusedtodetectmotionregionsinsteadofadjacentframedifference.TheDSPbasedplatformtestsindicatethebackgroundcanberecoveredlosslesslyinaboutonesecond,andmovingregionsarenotinfluencedbymovingtargetspeeds.Thealgorithmhasimportantusagebothintheoryandapplications.

简介：Inthispaper,wepresentahighspeedautofocussystemformicrosystemapplicationsanddesignalook-up-tablebasedautofocusingalgorithmforapplicationswhenatargetobjectisalwaysvisible,e.g.,manufacturingpartswithalignmentfiducials.Weperformanevaluationof24focusmeasurestoverifythatwhichfocusmeasureisthebestforthelook-up-tablebasedmethod.Fromtheevaluation,wefindthattheChebyshevmoments-basedfocusmeasure(CHEB)isthemostsuitable.Furthermore,wealsodevelopalook-up-tablebasedautofocussystemthatusesCHEBasthefocusmeasure.Intrainingphase,weofflineconstructatablefromtrainingimagesofanobjectthatarecapturedatseverallensdistances.Eachentryoftableconsistsoffocusmeasurecomputedfromimageandlensdistance.Inworkingphase,givenaninputimage,thealgorithmfirstcomputesthefocusmeasureandthenfindsthebestmatchfocusmeasurefromthetableandlooksupthecorrespondinglenspositionformovingitintothein-focusposition.Ouralgorithmcanperformautofocusingwithinonly2stepsoflensmoving.Theexperimentshowsthatthesystemcanperformhighspeedautofocusingofmicroobjects.

简介：Thepurposeofthispaperistodevelopahighspeeddetectionschemeformovingand/orstationarypointtargetsinamultitargetenvironmentasregisteredinanIRimagesequence.Aniterativeapproximate3-Dlinesearchingalgorithmbaseduponthegeometricrepresentationoflines(fornon-maneuveringtargetsinspace)ina3-Dspaceisderived.Theconvergencyofthealgorithmisproved.Ananalysisisperformedofthetheoreticaldetectionperformanceofthealgorithm.ThestatisticalexperimentresultsshowhigheffectivenessandcomputationalefficiencyofthealgorithminthecaseoflowSNR.Theideamaybeemployedtosatisfythereal-timeprocessingrequirementofanIRsystem.

简介：三角洲西格马变换器是高速度和分辨率analog-to-digital调节的人之一。它的实现需要低oversampling技术和多小点承兑交单变换器。多小点承兑交单变换器导致的噪音成为败坏的关键因素之一三角洲西格马A/D变换器的signal-to-noise率。有信号统一transfunction的新奇结构，匹配的动态元素(DEM)并且塑造噪音被讨论。方法被调查基于建议结构设计变换器。行为模拟显示结构和设计方法是可行的。

简介：Thereexistmanymethodstomeasurebloodspeed,allofwhichhavesomeseriousshortcomings.Asfiberischaracterisedbytinydiameter,andlowlostratioofpowerandflexibility,itissuitableformeasuringbloodspeed.Itisprovedthatthespeedometerhashighspaceresolvingpower,hightimeresolvingpower,andoutstandingcapabilityofapproachingtarget,etc.

简介：Thispaperdescribesamodifiedspeed-sensorlesscontrolforinductionmotor(IM)basedonspacevectorpulsewidthmodulationandneuralnetwork.AnElmanANNmethodtoidentifytheIMspeedisproposed,withIMparametersemployedasassociatedelements.TheBPalgorithmisusedtoprovideanadaptiveestimationofthemotorspeed.Theeffectivenessoftheproposedmethodisverifiedbysimulationresults.TheimplementationonTMS320F240fixedDSPisprovided.

简介：Anovellowpowerandlowvoltagecurrentmirrorwithaverylowcurrentcopyerrorispresentedandtheprincipleofitsoperationisdiscussed.Inthiscircuit,thegainboostingregulatedcascodeschemeisusedtoimprovetheoutputresistance,whileusinginverterasanamplifier.ThesimulationresultswithHSPICEinTSMC0.18umCMOStechnologyaregiven,whichverifythehighperformanceoftheproposedstructure.Simulationresultsshowaninputresistanceof0.014Ωandanoutputresistanceof3GΩ.Thecurrentcopyerrorisfavorableaslowas0.002%togetherwithaninput(theminimuminputvoltageofvin,min~0.24V)andanoutput(theminimumoutputvoltageofvout,min~0.16V)complianceswhileworkingwiththe1Vpowersupplyandthe50uAinputcurrent.Thecurrentcopyerrorisnearzeroattheinputcurrentof27uA.Itconsumesonly76uWandintroducesaverylowoutputoffsetcurrentof50pA.

简介：对数的反应互补金属氧化物半导体(互补金属氧化物半导体)图象传感器提供一个宽动态范围，但是它的缺点是简单固定模式噪音(FPN)的缺乏取消计划。设计与高有活力的范围和高输出秋千是一个新奇对数的活跃象素传感器(APS)。第一，混合模型APS的操作原则被介绍。象素能由选择合适的控制信号在三个操作模式工作。然后，对数的APS的FPN来源被分析，并且双sampled技术被实现减少FPN。根据模拟结果，最后，布局被设计并且过去了设计统治支票(DRC)，电子规则检查(ERC)和布局对图解(LVS)确认，和模拟以后的结果是基本上与模拟结果一致。新对数的APS的动态范围能到达大约140dB；并且产量秋千是大约750mV。结果证明由使用两倍取样的技术，大多数FPN被消除，动态范围被提高。

简介：WeproposeaBPNNbasedadaptiveslidingmodecontrolschemeforspeedtrackingofaDCmotorwithunknownsystemnonlinearities.Theinput-outputlinearizationtechniqueisusedtocancelthenonlinearities,andoutputoftheBPNNisincorporatedintothecontrollerintheproposedscheme.ItisshownthattherotorspeedofaDCmotorcanfollowanyarbitrarilyselectedtrajectoriesundervariableloadtorque.Thentheapplicationoftheapproachistestedviacomesimulations.

简介：Animprovedstructureoflineartransconductorispresentedinthispaper.ItisanalyzedintheoryandsimulatedwithSpectrebasedon0.25μmCMOSprocess.Thesimulationresultsshowthatthedifferentialinputvoltageoftheproposedtransconductoris4.0Vpp(peaktopeak),whereasthedifferentialinputvoltageoftheexistingsourcedegenerationstructureis2.2Vpp,whentheirnonlinearerrorsarerequiredtobelessthan0.15%.

简介：InordertoobtainhigheremissionperformancethanthatofatraditionalM-typecathode,wehavedevelopedanewtypeimpregnateddispensercathode.Thenewcathodeisimpregnatedwithanewactivesubstancewithmolarratioof26BaO·29SrO·8Sc2O3·7CaO·Al2O3.Thispaperintroducestheemissionperformance,surfaceactivematerial,andworkfunctionofthenewcathode.At1100℃B,theDCcurrentdensityandpulsecurrentdensityare30.6±1.0A/cm2and171.6±2.8A/cm2,respectively,2.1and5.4timesofthatofanM-typecathode.Theworkfunctionofthenewcathodeis1.668±0.002eV.HighconcentrationO-Al-Sc-Sr-BaandO-Al-Sc-Baarefoundintheporesandatporeedges,respectively.Bycomparingtheemissionperformancesandsurfacecharacteristicsofas-polishedandas-cleanedcathodes,itisproposedthat,theemissionaroundporeendsformsthemajorpartofthetotalemissionforthenewcathodes.

简介：ThispaperdescribesafullchannelTVmodulatorforallTVsystems,whichhasbeendevelopedsuccessfully.ItemploysadvancedtechniquesuchasPLLfrequencysynthesizerwithmicrowaveintegratedcircuit,andwidebandmicrostripVCOanddigital-analogcombinedintegratedcircuits.Thekeytechniqueofthemodulatorissettledsuccessfully.AllthespecificationsofthemodulatoragreewithTechnicalStandardofChina,whicharetestedbytheauthorityofChina.

简介：结合的基于聚合物的太阳能电池是寻找在最后一十年的持续、可更新的精力来源的最有希望的设备之一。它是最年轻的领域无机的太阳能电池研究并且目前也当然是最快的成长的。Inaddition，为基于聚合物的太阳能电池与的关键因素高效率是发明新材料。器官的太阳能电池在应用在制造和灵活性由于它的低费用吸引了重要研究和商业兴趣。然而，他们受不了相对低的变换效率。高效率聚合物太阳能电池技术的意义和概念的摘要被介绍。

简介：PIM-SM(ProtocolIndependentMulticast-SparseMode)isamainmulticastroutingpro-tocolintheIPv6(InternetProtocolversion6).Itcanuseeitherasharedtreeorashortestpathtreetodeliverdatapackets,consequentlythemulticastIPlookupenginerequires,insomecases,twosearchestogetacorrectlookupresultaccordingtoitsmulticastforwardingrule,anditmayresultinanewrequirementofdoublingthelookupspeedofthelookupengine.TheordinarymethodtosatisfythisrequirementinTCAM(TernaryContentAddressableMemory)basedlookupenginesistoexploitparallelismamongmultipleTCAMs.However,traditionalparallelmethodsalwaysinducemorere-sourcesandhigherdesigndifficulty.Weproposeinthispaperanovelapproachtosolvethisproblem.ByarrangingmulticastforwardingtableinclasssequenceinTCAMandmakingfulluseoftheintrinsiccharacteristicoftheTCAM,ourapproachcangettherightlookupresultwithjustonesearchandasingleTCAM,whilekeepingthehardwareoflookupengineunchanged.ExperimentalresultshaveshownthattheapproachmakeitpossibletosatisfyforwardingIPv6multicastpacketsatthefulllinkrateof20Gb/swithjustoneTCAMwiththecurrentTCAMchip.