TH-UWB信號同步技術(shù)研究.pdf

1、分類號：UDC：密級：編號：工學(xué)碩士學(xué)位論文THUWB信號同步技術(shù)研究碩士研究生：指導(dǎo)教師：學(xué)位級別：學(xué)科、專業(yè)：所在單位：論文提交日期：論文答辯日期：學(xué)位授予單位：張?zhí)m李一兵教授工學(xué)碩士通信與信息系統(tǒng)哈爾濱工程大學(xué)2008年2月2008年3月哈爾濱工程大學(xué)哈爾濱工程大學(xué)碩士學(xué)位論文ABSTRACTInrecentyears，UWB(UltraWideBand)communicationwhichhasmanyadvantagesisb

2、elievedtobetheoptimumsolutionforshortdistanceandhighspeedcommunicationsinthefutureHoweverbecauseoftheultrashortpulsesandultralowpowerspectraldensityofUWBsignals，thesynchronizationofthereceivedsignalsisacriticalproblemtob

3、esolvedThepaperhasdonesomedeepandfullstudiesofacquisitionandsynchronizationofTHUWBsignalsTwokindsofUWBsynchronizationalgorithmsalemainlystudiedandanalyzedThesynchronizationCanbeachievedbyestimatingtheminimumEuclideandist

4、anceofthereceivedsignalandthelocaltemplatesignalintheleastsquareestimationalgorithm，channelestimationCanalsobeachievedatthesanletimeandcanbeusedinthecorrelationreceiverSimulationresultsshowthatthisalgorithmhasbetteracqui

5、sitionperformanceandisfeasibleThispaperalsogives粕improvedversionofTDT(Timing謝tllDi啊Template)algorithmFirst，usingthecorrelationoftheadjacentbitsofreceiveddirtysignalstorealizeframesynchronization，thenslidingcorrelationint

6、headjacenttwoframesisdonetorealizechipsynchronizationBERandMSEcomparisonbeforeandafteraddingtheslidingcorrelationalegivenSimulationresultsshowthatTDTwimslidingnotonlyinheritsthesimplenessoftheoriginalTDTalgorithmwhichonl

7、yneedsintegrationandcleancalculationtoachievetheframesynchronization，butalsolimitstheslidingcorrelationintwoframes，whichgreatlydeducesthecalculationamount，TheimprovedTDTwithslidingcorrelationandtheTDTbasedonHermiteorthog