简介：分阶段执行多样的点缀是成像技术的一种新奇类型并且能被用来从未知阶段错误克服图象降级，例如大气的骚乱。在Zernike多项式上扩展的波前阶段从一双图象被估计(在里面焦点并且从焦点飞机)。在这份报纸，PDS的原则被分析，并且基因算法被用作反复的算法模仿一些特征，例如Zernike多项式鈥?模式的影响，阶段评价上的骚乱的振幅。因此，为图象的恢复的一个新方法被探索。CLC数字TN911.74

简介：ＤｅｓｉｇｎｏｆＩＲＥＤＭＳｙｓｔｅｍｗｉｔｈａＤＳＰＰｈａｓｅＤｅｔｅｃｔｏｒ①ＬＩＵＪｉａｎｇｕｏ，ＷＥＩＱｉｎｇｎｏｎｇ（ＡｎｈｕｉＩｎｓｔｉｔｕｔｅｏｆＯｐｔｉｃｓａｎｄＦｉｎｅＭｅｃｈａｎｉｃｓ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃ...

简介：Inphaseunwrapping,howtocontroltheresiduesandcut-linesiscriticaltounwrapill-statewrappedphasemapsuccessfully.Somenewconceptsinphaseunwrappingfieldareproposed.Firstly,theresiduesinthreetypes,I.e.,singularresidues,normalresiduesandvirtualresidues,areclassified,whichleadstosomerationalunwrappingpaths.Secondly,somedifferencesbetweencut-lineandcurved-lineareanalyzed.Andfinally,experimentiscarriedouttocompareournewenhancedGoldsteinalgorithmwiththeoriginalGoldsteinalgorithm.

简介：Theestimationofclutterpolarizationissignificantinvirtualpolarizationfiltering.ThispaperproposesvariablestepsizeLeastMeanSquareerror(LMS)algorithmtoestimateclutterpo-larization.Theadaptiverecursivefunctionissetupbasedondoublepolarizationreceivingsignalmodel.Bychoosingdesiredresponsesignalproperly,thereceiveddataareestimated.TheresultofestimationisusedforNullPhase-ShiftinstantaneousPolarizationFilter(NPSPF)designandtarget’samplitudeandphasecompensation.Algorithm’strackingperformanceisdiscussedindetail.Thesimulationresultsareconsistentwiththeaboveanalysis,andthecluttersuppressioniseffective.

简介：Lowtemperatureliquidphaseepitaxyofsiliconthinfilmswassuccessfullycarriedoutatatemperatureof(400-500)℃,usingAu/BialloyasaSi-saturatedSnsolutionwasusedtoprotectthesubstratesurface,preventingeffectivelytheoxidationofsilicon.ThegrownSithinfilmswereidentifiedbySEM,AESandC-Vmeasurements.

简介：Thephaseandfrequencylockingofmicrowave,millimeterwavepowercombiningwereanalysedandsummarizedinanall-roundway.Themaster/slavephaselockingofcavityoscillators,thepeerphaselockingofmutuallycoupledoscillators,andthepeerphaselockingofring-connectedmultipleoscillatorswereinvestigated.Theresultsofnumericalcalculations,andtherelationsofphasetophaselockingmodelandoscillatorparametersweregiven.Andthecavityandspacepowercombiningaspectsformicrowaveandmillimeterwavewerepresented.

简介：Theoutputcharacteristicsofphase-shiftedlong-periodfibergratings(LPGs)areanalyzedusingtransfermatrixmethod.Thetransmissionsandtheirenvelopsofseveralkindsofthesegratingsaregiven.Thecharacteristicsofphase-shiftedLPGsandBragggratingsarecompared.Thepossibleapplicationsofphase-shiftedLPGsarediscussed..

简介：采用1/4波浪板为阶段延迟和波浪板的眼的轴的同时的测量使用的一个简单方法被表明。测量原则的理论分析详细被介绍。在测量，在调整标准1/4以后，挥动板并且快(慢)要测量的板的轴平行到polarizer的通行证轴，要测量的板被450counterclockwisly旋转。一台步进马达被用来旋转分析器。试验性的数据被一个光电探测器收集然后送到一台计算机。根据产量数据曲线，阶段延迟和要测量的板的眼的轴能同时被获得。为了测试方法，位/2和位的可行性，/8波浪盘子被用作例子表明测量过程。阶段延迟测量精确性比0.5脳好10?2。这个方法能被用来方便地测量任意的阶段延迟。CLC数字O436.3

简介：Ahigh-speedandhigh-resolutionopticalA/Dquantizerisproposed.Itsarchitectureisdiscussed.Bitcircuitsarebuiltbyusingthephasemodulatorsinparallel.Basedonthedifferentcharacterofthehalf-wavevoltageforeveryphasemodulatorandthepolarizedbiasdesignofincidentlight,theRFinputsignaliscodedandtransmittedintheformofopticaldigitalsignal.Accordingtotheprincipleofthearchitecture,thehigh-resolutionquantizerswith8-bitand12-bit,etal.arebuilt,whichoperateat100GS/s.Theirquantizationnoiseisinvariablealmostwithbitcircuitsincreasing.Thesimulationresultof4-bitA/Dquantizerisalsogiven.

简介：Thecompletephase-strainmodelforarbitrarilyconfiguredsinge-modeopticalfiberinanarbitrarythree-demensionalstrainfieldisderived.Itisincludesallfac-torshavinginfluenceontheopticalphasesuchasthechangeinlength,dispersionandbirefringence.Whensimplified.ouranalysisisrespectivelyconsistentwiththemodelofSirkisandHaslach,ButterandHocker.

简介：Usingthematrixapproach,weanalyzedtherelationbetweenthelocationofthetransmissioninstopbandandthephaseshift,anddiscussedtheproblemofvaryingthebandwidthofthetransmissionwindow.Thesetheoreticaltesultsinthispaperhaveimportantsignificanceforactualapplicationofthephase-shiftedfibergrating.

简介：激光阶段噪音(LPN)在光协调系统起一个重要作用。基于Viterbi-Viterbi搬运人阶段评价(用户终端设备)的算法，在协调接收装置上强加的LPN的效果为调音的照阶段移动(QPSK)被调查，调音的8阶段移动(8PSK)和16照振幅调整(16正交调幅)光协调系统分别地。模拟结果证明在阶段评价算法的最佳的块长度是在LPN和添加剂白人Gaussian噪音(AWGN)之间的折衷，并且取决于调整格式的水平。到在协调接收装置的数字变换器(模数转换器)的类似物的决定要求独立于LPN或调整格式的水平。为103的位错误率(BER)，模数转换器的要求的位数字是6，并且获得为更高的分辨率是边缘的。

简介：ＬｉｎｅａｒＰｈａｓｅＦＩＲＦｉｌｔｅｒｏｎＭｅａｓｕｒｉｎｇ３－ＤＳｕｒｆａｃｅ①ＷＡＮＧＹｕｎｓｈａｎ，ＹＡＮＧＦｕｊｕｎ，ＬＩＷｅｉ（ＳｈａｎｄｏｎｇＵｎｉｖｅｒｓｉｔｙｏｆＴｅｃｈｎｏｌｏｇｙ，Ｊｉｎａｎ２５００６１，ＣＨＮ）Ａｂｓｔｒａｃｔ...

简介：TheapplicationoftherandombinaryphasecodedsignalintheCWradarsystemhasbeenlimitedbythedifficultytoisolatethetransmissionandreceptionsignal.Inordertomakeuseoftherandombinaryphasecodedsignal,therandombinaryphasecodedpulseradar(RBPC-PR)systemhasbeenstudied.First,theaverageambiguityfunction(AAF)oftheRBPC-PRsignalhasbeenanalyzed.Then,astatisticalmethodofreducingtherangesidelobe(RSL)ispresented.Finally,asignalprocessingschemeoftheRBPC-PRisdevdoped.Thesimulationresultsshowthatbyusingthescheme,thejammingimmunityofthesystem,theresolutionandaccuracyofdistanceandvelocityhavebeenimproved,andthedistanceandvelocityvaguenesscausedbyperiodscanalsoberemoved.TheRSLcanbereducedover30dBbythestatisticalaveragemethod,thustheprobabilityambiguitycausedbyrandomnoisecanbeavoided.

简介：PECVD在玻璃底层上准备的非结晶的硅电影被退火的常规炉子并且快速的热退火(RTA)分别地使结晶。夫罗姆塞·拉曼系列，X光检查衍射和扫描电子显微镜，谷物尺寸在两种技术在850℃被使结晶，这被发现。RTA做的薄膜是光滑的并且完成式组织，薄膜由FA退火了有高度结构的混乱。大约30nm的一种平均谷物尺寸被两种技术获得。

简介：在稠密的波长部门多路转换(DWDM)光传输系统，由于克尔，效果在每条隧道引起阶段移动和紧张调整的生气相位调制(XPM)它将导致通道流量是一个随机变量。处理XPM效果的通道流量的表情被介绍，并且这个方法的正确性和精确性由数字模拟的redemonstrated。

简介：Anewmethodtoreducethereflection-inducedphasebetweenthetwoortho-gonalcomponentsofthelinearlypolarizedlightafterthereflectionsispresented.Thiskindofsensorhaadessiertofabricateandadjustthanthatwhoseinternalreflectionisatcriticalangle.

简介：影印石版术实验与electrooptically悦耳的阶段步借助于一个光阶段面具被执行。阶段面具由转换铁电体领域的六角形的格子在z切割锂niobate底层上制作了的2-dimensional组成。电镀物品光学地悦耳的阶段步在转换领域之间，被一个外部电场的应用程序经由透明电极沿着水晶的z轴获得。氩激光的瞄准横梁通过阶段面具和近的领域紧张模式，在Talbot长度并且为应用电压的不同价值的不同飞机，被用于光刻的实验。初步的结果被显示出，进一步的应用被讨论。这研究部分是的CLC数字TN305在FIRB工程以内由MIUR资助了(没有。RBNE01KZ94)并且部分由MIUR工程(号码77DDN.1105/2002)。

简介：

简介：Adiodelaserarray(DLA)positionedinanexternalcavitycanreceivetheradiationsemittedfromitsneighboringelements(C1)andthatofitself(S)afterbeingreflectedattheDLAfacetaswellasfromtheexternalmirror(C0).Consideringthefactthat|C0/S|shouldbelargerthanunityiftheexternalcavityiseffective,and|C1/S|shouldbelargerthanunityifthephaselockingmaybeestablishedintheexternalcavity.Therequirementsonthereflectionatthefacetofthediodelaserarrayhavebeenspecifiedintermsofthecavitylengthandreflectioncoefficientoftheexternalmirror.