标签: interpolation

科学计算概论ScientificComputingAnIntroductorySurvey-chap07_插值Interpolation

DF1706Stereo,24-Bit,192kHz8xOversamplingDigitalInterpolationFilter

PolynomialInterpolationErrorAnalysis

Abstract:Digital-to-analogconverters(DACs)convertdigitaldatatoanalogvoltageorcurrentinapplicationssuchasinstrumentationandwirelesscommunications.ADAC'soutputfrequencygenerallyrangesfromDCtolessthanfS/2,wherefSistheinput-updatingfrequency.TheoutputfrequencyresponseformostDACs,however,rollsoffaccordingtothesin(x)/x(sinc)frequency-responseenvelope.Maxim>AppNotes>A/DandD/ACONVERSION/SAMPLINGCIRCUITSBASESTATIONS/WIRELESSINFRASTRUCTUREDIGITALPOTENTIOMETERSHIGH-SPEEDSIGNALPROCESSINGWIRELESS,RF,ANDCABLEKeywords:preequalization,postequalization,frequencyresponse,sinx/x,sincfunction,interpolation,Nyquist,imageJun01,2006frequency,reconstructionfilter,FIR,roll-offAPPLICATIONNOTE3853EqualizingTechniquesFlattenDACFrequencyResponseAbstract:Digital-to-analogconverters(DACs)convertdigitaldatatoanalogvoltageorcurrentinapplicationssuchasinstrumentationandwirelesscommunications.ADAC'soutputfrequencygenerallyrangesfromDCtolessthanfS/2,wherefSistheinput-updatingfrequency.TheoutputfrequencyresponseformostDACs,however,rollsoffaccordingtothesin(x……

【应用笔记】AN623:使用DSPBuilder高级模块实现重采样滤波器(AN623:UsingtheDSPBuilderAdvancedBlocksettoImplementResamplingFilters)本应用笔记讨论使用DSPBuilder高级模块实现重采样滤波器的各种设计技巧。ThisapplicationnotediscussesvariousdesigntechniquesforimplementingresamplingfiltersusingtheAltera®DSPBuilderadvancedblockset.TheDSPBuilderadvancedblocksetsupportsconstraint-basedhigh-levelsynthesisandisparticularlyefficientforimplementingmultiplechannel,high-performanceresamplingfilters.YoucanusetheDSPBuilderadvancedblocksettoquicklymaphighlyabstractalgorithmstomodel-basedSimulinkdesignsandtogeneratenearoptimalHDLcodebasedonyourdesignrequirements.Inaddition,becauseyoucanparameterizetheDSPBuilderadvancedblocksetcomponents,youcanquicklyupdateyourdesignifthespecificationchanges.AN623:UsingtheDSPBuilderAdvancedBlocksettoImplementResamplingFiltersAN-623-1.0ApplicationNoteThisapplicationnotediscussesvariousdesigntechniquesforimplementingresamplingfiltersusingtheAlteraDSPBuilderadvancedblockset.TheDSPBuilderadvancedblocksetsupportsconstraint-basedhigh-levelsynthesisandisparticularlyefficientforimplementingmultiplechannel,high-performanceresampling……

摘要：数字-模拟转换器（DAC）将数字数据转换成模拟电压或电流的仪器和无线通信等应用。一个DAC的输出频率范围从DC到低于FS/2，其中FS是输入更新频率。然而，对于大多数的DAC输出频率响应，推出了根据SIN（X）/X（SINC）频率响应信封。Maxim>AppNotes>A/DandD/ACONVERSION/SAMPLINGCIRCUITSBASESTATIONS/WIRELESSINFRASTRUCTUREDIGITALPOTENTIOMETERSHIGH-SPEEDSIGNALPROCESSINGWIRELESS,RF,ANDCABLEKeywords:preequalization,postequalization,frequencyresponse,sinx/x,sincfunction,interpolation,Nyquist,imageJun01,2006frequency,reconstructionfilter,FIR,roll-offAPPLICATIONNOTE3853EqualizingTechniquesFlattenDACFrequencyResponseAbstract:Digital-to-analogconverters(DACs)convertdigitaldatatoanalogvoltageorcurrentinapplicationssuchasinstrumentationandwirelesscommunications.ADAC'soutputfrequencygenerallyrangesfromDCtolessthanfS/2,wherefSistheinput-updatingfrequency.TheoutputfrequencyresponseformostDACs,however,rollsoffaccordingtothesin(x……

colorinterpolationIntroductionUsageofdigitalcamerasisspreadingwidelyastheyareeasyimageinputdevices.Theincreasingpopularityofdigitalcamerashasprovidedmotivationtoimproveallelementsofthedigitalphotographysignalchain.Tolowercost,digitalcolorcamerastypicallyuseasingleimagedetector.ColorimagingwithasingledetectorrequirestheuseofaColorFilterArray(CFA)whichcoversthedetectorarray.Inthisarrangementeachpixelinthedetectorsamplestheintensityofjustoneofthemany-colorseparations.Therecoveryoffull-colorimagesfromaCFA-baseddetectorrequiresamethodofcalculatingvaluesoftheothercolorseparationsateachpixel.Thesemethodsarecommonlyreferredascolorinterpolationorcolordemosaicingalgorithms.Inasingle-detectorcamera……