简介:ThepurposeofthispaperistoconstructanorthogonalArmletmulti-waveletswithmul-tiplicityranddilationfactora.Firstly,thedefinitionofArmletswithdilationfactoraisproposedinthispaper.BasedontheTwo-scaleSimilarTransform(TST),thenotionofthePara-unitaryA-scaleSimilarTransform(PAST)isintroduced,andwealsogivethetransformonthealltwo-scalematrixsymbolsofthemulti-waveletswithdilationa.ThenweshowthatthePASTandthetransformonthematrixsymbolsofthemulti-waveletskeeptheorthogonalityofthemulti-waveletssystem.Wediscusstheconditionthatmulti-waveletscorrespondingtothemulti-scalingfunctionsareallArmlets.AfterperformingthePASTandthetransformonthematrixsymbolsofthemulti-wavelets,themulti-scalingfunctioncanbebalancedandthecorrespondingmulti-waveletscanbeArmletsatthesametime.TheconstructionofArmletswithhighorderisalsodiscussed.Atlast,byagivenexample,wecanconcludethatthealgorithmisfeasibleandefficient.
简介:Ageneralprocedureforconstructingmultivariatenon-tensor-productwaveletsthatgen-erateanorthogonaldecompositionofL~2(R~),s≥1,isdescribedandappliedtoyieldexplicitformulasforcompactlysupportedspline-waveletsbasedonthemultiresolutionanalysisofL~2(R~s),1≤s≤3,generatedbyanyboxsplinewhosedirectionsetconstitutesaunimodularmatrix.Inparticular,whenunivariatecardinalB-splinesareconsidered,theminimallysup-portedcardinalspline-waveletsofChuiandWangarerecovered.Arefinedcomputationalschemefortheorthogonalizationofspaceswithcompactlysupportedwaveletsisgiven.Arecursiveapproximationschemefor“truncated”decompositionsequencesisdevelopedandasharperrorboundisincluded.Aconditiononthesymmetryoranti-symmetryofthewaveletsisappliedtoyieldsymmetricbox-splinewavelets.
简介:Inthispaper,weproposetheso-calledcontinuousFresnel-waveletcombinatorialtransformwhichmeansthatthemotherwaveletundergoestheFresneltransformation.Thismotivationcanletthemother-wavelet-stateitselfvaryfrom|ψtoFr,s|ψ,exceptforvariationwithinthefamilyofdilationsandtranslations.TheParseval’sequality,admissibilityconditionandinversetransformofthiscontinuousFresnel-waveletcombinatorialtransformareanalysed.BytakingcertainparametersandusingtheadmissibilityconditionofthiscontinuousFresnel-waveletcombinatorialtransform,weobtainsomemotherwavelets.Acomparisonbetweenthenewlyfoundmotherwaveletsispresented.
简介:ADMISSIBLEWAVELETSASSOCIATEDWITHTHETRANSFORMGROUPONRHEJIANXUNANDPENGLIZHONGAbstract.LetPbethetransformgrouponRn,thenPhasanatu...
简介:在这份报纸,我们构造从周期的功能g放大功能和小浪的二尺寸的周期的interpolatory(x1,x2),其Fourier系数是积极的,并且获得可伸缩的一些性质,工作并且小浪。
简介:TheApplicationsofWaveletsinHierarchicalRepresentationsandSmoothingofCurvesandSurfaces①SunYankuiZhuXinxiongMaLingBeijingUnvier...
简介:PascaltrianglesareformulatedforcomputingthecoefficientsoftheB-splineseriesrepresentationofthecompactlysupportedspline-waveletswithminimumsupportandtheirderivatives.Itisshownthatwiththeal-ternatingsignsremoved,allthesesequencesaretotallypositive.Ontheotherhand,truncationsoftherecipro-calEuler-Frobeniuspolynomialsleadtofinitesequencesfororthogonalwaveletdecompositions.Forthispur-pose,sharpestimatesaregivenintermsoftheexactreconstructionoftheseapproximatedecomposedcompo-nents.
简介:Inthispaper,thecloserelationshipamongwavelettransformandquadraturemirrorfilter(QMF)banksandthescattering-matrixofwavedigitalfilter(WDF)isandlyzedindetail.TheparametrizationoforthonormalcompactlysupportedwaveletbasesthathaveanarbitrarynumberofvanishingmomentisobtainedbybuildinganyQMFpairoutofelementaryfactorsofthescatteringmatrix.Inaddition,theoptimizationofparameterisalsopresented.Ascomparison,Someexamplesaboutorthonormalcompactlysupportedwaveletthathasarbitrarynumberofvanishingmomentandthemostnumberofvanishingmomentaregivenrespectively.Thenwegivetheefficientlatticestructuretoimplementthetransform.
简介:好硅石沙的一张床上的床形式的开始和发展上的试验性的调查与一条分叉的隧道在实验室斜槽在冲积流动条件下面被进行。学习的主要目的是估计:我)在开发的转变阶段的床形式的险峻;并且ii)触发了涟漪开发的开始的小浪(t)的阀值高度。详细的床侧面大小用一根声学的Doppler探针被执行,在在各种各样的试验的沉积床上的穿越的纵预定。床形式尺寸从如此的床侧面记录被提取并且为小浪,转变和平衡阶段分析了。在转变和平衡阶段的涟漪的险峻是类似的,这被发现,证实以前的数学模型模拟的预言。lognormal分布适合小浪长度数据。小浪阀值高度作为t被估计7公里,或y+80以墙单位。如此的高度大小建议涟漪开发能被到达狂暴的边界层的外部流动地区的小浪触发。获得的t价值为床形式尺寸通常对应于在二个预兆的方程之间的交叉点。明确的表达被开发作为沉积谷物尺寸的功能预言t,它为在这研究使用的好沙被证实。
简介:Thispaperpresentsanefficienttechniqueforprocessingof3Dmeshedsurfacesviasphericalwavelets.Morespecifically,aninput3Dmeshisfirstlytransformedintoasphericalvectorsignalbyafastlowdistortionsphericalparameterizationapproachbasedonsymmetryanalysisof3Dmeshes.Thissignalisthensampledonthespherewiththehelpofanadaptivesamplingscheme.Finally,thesampledsignalistransformedintothewaveletdomainaccordingtosphericalwavelettransformwheremany3Dmeshprocessingoperationscanbeimplementedsuchassmoothing,enhancement,compression,andsoon.Ourmaincontributionliesinincorporatingafastlowdistortionsphericalparameterizationapproachandanadaptivesamplingschemeintotheframeforprocessing3Dmeshedsurfacesbysphericalwavelets,whichcanhandlesurfaceswithcomplexshapes.Anumberofexperimentalexamplesdemonstratethatouralgorithmisrobustandefficient.
简介:Thispaperdescribesanovelwavelet-basedapproachtothedetectionofabruptfaultofRotorcraftUnmannedAerialVe-hicle(RUAV)sensorsystem.Byuseofwavelettransformsthataccuratelylocalizethecharacteristicsofasignalbothinthetimeandfrequencydomains,theoccurringinstantsofabnormalstatusofasensorintheoutputsignalcanbeidentifiedbythemulti-scalerepresentationofthesignal.Oncetheinstantsaredetected,thedistributiondifferencesofthesignalenergyonalldecomposedwaveletscalesofthesignalbeforeandaftertheinstantsareusedtoclaimandclassifythesensorfaults.
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简介:包分类被学习十年了;它基于一个给定的规则集合分类包进特定的流动。当定义软件的网络被建议,包分类的一个最近的趋势是放大五元组的模型到多元组。一般来说,多重地上的包分类是一个复杂问题。尽管大多数存在softwarebased算法在实践被证明非凡,他们对经典五元组的模型仅仅合适并且对困难被扩大规模。同时,硬件特定的答案不可弯曲、昂贵,并且他们中的一些是消费的力量。在这份报纸,我们为多核心系统建议一条通用的多维的包分类途径。在我们的途径,新奇数据结构和四个基于分解的算法被设计优化分类并且规则更新。为多地规则,一个规则集合根据领域的数字被切成几部分。每部分独立地工作。这样,这些地在平行被寻找,所有部分结果最后一起被合并。表明我们的途径的可行性,我们实现一个原型并且评估它的产量和潜伏。试验性的结果证明我们的途径比另外的分解底的算法和43%更低的潜伏的完成40%更高的产量平均比另外的算法的统治增长更改。而且,我们的途径平均节省39%记忆消费并且有好可伸缩性。