简介：与宽广带宽、分叉的横梁照亮的燃烧思考栅栏的远地的紧张和衍射效率被调查。什么时候光谱这个事件的宽度和分叉随经常的精力增加，最大的紧张减少，和一半微笑在最大的紧张的e-2的宽度变得更宽。甚至当事件光包含大量波长并且来自大量角度时，衍射效率没与合适的沟形状为燃烧栅栏有恶化。

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简介：Anoveltwo-wayrotaryjoint(SandPband)isdescribed.ForSbandrotaryjoint,VSWRislessthan1.2overthefrequencyrangefrom1.2GHzto4.4GHz.ForPbandrotaryjoint,thestructureofthereentrantresonatorisusedtoreducethelengthoftherotaryjointtoaboutλ/4,andthespecialandsmallsizerequirementissatisfied.

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简介：Measuringradiometricquantitiesoflightcanbedonebywayofalge-braicinsert.Andalsoafunctionofradiomeertricquantitiesoflightsourceispresented.Thespectrumdispersionlawoflightsourceisgiven.

简介：Analysisofthescatteringparameters(S-parameters)ofplanarN-waymetamaterialpowerdividers/combinersmostlyusescommercialmicrowavecircuitsimulatorsduetothelargecircuitsizeinvolved.Thispaperpresentsanefficientcircuitmodelingapproach,whichisbasedonthemulti-inputandmulti-outputtransmissionmatrix(T-matrix)method,toanalyzetheS-parameterofaplanarnine-waymetamaterialpower-divider/combinerstructure.S-parametercomputationresultsareshowningoodagreementwiththesimulationresultsbyusingtheAgilentadvanceddesignsystem(ADS)andmeasurementresults.ThecomputationtimeofanN-waymetamaterialpowerdivider/combinerwithN=5,9,13,and17usingT-matrixmethodisalsocomparedwiththoseofADSandAWRMicrowaveOffice(MWO)todemonstrateitscomputationalefficiency.

简介：纤维来源(EDSFS)过滤的宽带嗯做superfluorescent的分析正在使用长时期给由传播的啁啾的纤维栅栏矩阵方法。为我们稀释振幅需求和弄平的波长范围要求的EDSFS，求婚了是设计高效的如此的过滤器的关键因素。模拟结果证明如此的类型过滤器有足够的变细在输出弄平戏剧的增加在1529nm1的波长范围的放大自发的排放(ASE)由选择象啁啾的度那样的一致纤维过滤器参数的535nm，原来的时期，导致的索引变化，一些纤维过滤器，然后宽带EDSFS能被完成。

简介：NetworkCoding(NC)bringscorrelationbetweenthecodedsignalsfromdifferentsources,whichmakesthesystemmorevulnerabletothedecodeerroratrelay.ConventionalCyclicRedundancyCode(CRC)hasbeenimplementedforerrorbitdetection.However,itserrorcorrectionissimplyignored.Tofullyexploitthisfeature,thispaperproposesanoveljointLog-LikelihoodRatio(LLR)CRCerrormitigationforNCtwowayrelaychannel.SpecificthresholdsaredesignedtoestimatetheerrornumberofdatablockandidentifythosewhichcanberecoveredifthenumberiswithintheerrorcorrectionscopeofCRC.Weexaminetwomodesofthethresholds,onebasedontheaverageBitErrorRate(BER)ofsource-relaylink,whiletheotherbasedonthatofinstantaneousone.WeprovidethefullanalysisforthePair-wiseErrorProbability(PEP)performanceofthescheme.AvarietyofnumericalresultsarepresentedtorevealthesuperiorityoftheproposedschemetoconventionalCRCNCunderindependentRayleighfadingchannels.Moreover,theefficienciesoftheproposedthresholdsarealsovalidated.

简介：Timesynchronizationtechniques,especiallyonthepulsepersecond(PPS)temporalbasis,haveattractedgrowingresearchinterestsinrecentyears.Inthispaper,wehaveproposedandexperimentallydemonstratedahigh-precisiontwo-waytimetransfer(TWTT)systemtorealizelong-distancedisseminationof1PPSsignalgeneratedbyahydrogenmaser.Adense-wavelength-division-multiplexing(DWDM)systemandbi-directionalerbium-dopedfiberamplifiers(Bi-EDFAs)havealsobeenadoptedtosuppresstheimpactofRayleighbackscatteringandoptimizethesignaltonoiseratio(SNR)aswell.Wehavetheoreticallyanalyzedthesystematicdelayindetail.Theultimaterootmeansquare(RMS)variationoftimesynchronizationaccuracyissub-26psandthetimedeviationcanbereducedtoaslowas1.2psat100sand0.253psat12000s,respectively.