两篇uwb的文献

francisy

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??【文件名】:06721@52RD_OntheanalysisofUWBcommunicationchannels.rar

??【格　式】:rar

??【大　小】:589K

??【简　介】:Abstract—Ultra-wideband(UWB)communicationsystems

??havebeenproposedforuseindensemultipathorshadowed

??environments.Giventhebandwidthofthesignalsinvolved,

??traditionalsignalprocessingtechniquesareoftennot

??apphcabletotheanalysisofUWBwaveforms.Inparticular,

??manyarraysignalprocessingtechniquesfordeterminingthe

??angle-of-arrivalwhichmakeuseofanarrowbandassumption

??arenotsuitable.AniterativealgorithmfortheUWBchannel

??characterizationisproposedandadiscussionisinitiated.

??【目　录】:

??I.INTRODUCTION

??II.SIGNALMODELS

??III.INDOORUWBPATHLossCHARACTERISTICS

??IV.UWBARRAYSIGNALPROCESSING

??V.ITERATIVEALGORITHMSFORUWBARRAYSIGNALPROCESSING

??VI.TIMEANDANGLE-OF-ARRIVALPROPERTIESOFTHEUWBCHANNEL.

??VII.CONCLUSIONS

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francisy

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??【文件名】:06721@52RD_pectrumUWBsignalswithuniformtimingjitter.rar

??【格　式】:rar

??【大　小】:121K

??【简　介】:Abstract|Wederivethepowerspectraldensityoftime-

??hopping(TH)spread-spectrumsignalsinthepresenceof

??randomtimingjitter,whichischaracterizedtypicallybya

??discrete-timestationaryprocess(independentoftheTHse-

??quences).DetaileddescriptionsofdierentTHschemes,

??employingarandomTHsequence,isgivenandspectral

??analysisofsuchTHsignalsinthepresenceofuniformtim-

??ingjitteriscarriedoutusingasystematicandtractable

??technique.

??【目　录】:

??I.Introduction

??II.SignalModelandPreliminaryDefinitions

??III.PSDofRandomTH-SSSignalswithUniformJitter

??IV.Applications

??V.Conclusions

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