資源描述：
《外文翻譯--基于線性預(yù)測(cè)方法的水聲信道最小均方誤差盲均衡（節(jié)選）》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、中文3775字畢業(yè)設(shè)計(jì)(論文)外文資料翻譯系別電子信息系專業(yè)通信工程班級(jí)姓名學(xué)號(hào)外文出處J.?Marine?Sci.?Appl.?(2011)?10:?113-120?附件1.原文；2.譯文2013年03月BlindAdaptiveMMSEEqualizationofUnderwaterAcousticChannelsBasedontheLinearPredictionMethodRBragos,RBlanco-EnrichAbstract:Theproblemofblindadaptiveequalizationofund
2、erwatersingle-inputmultiple-output(SIMO)acousticchannelswasanalyzedbyusingthelinearpredictionmethod.Minimummeansquareerror(MMSE)blindequalizerswitharbitrarydelayweredescribedonabasisofchannelidentification.TwomethodsforcalculatinglinearMMSEequalizerswereproposed.On
3、ewasbasedonfullchannelidentificationandrealizedusingRLSadaptivealgorithms,andtheotherwasbasedonthezero-delayMMSEequalizerandrealizedusingLMSandRLSadaptivealgorithms,respectively.Performanceofthethreeproposedalgorithmsandcomparisonwithtwoexistingzero-forcing(ZF)equa
4、lizationalgorithmswereinvestigatedbysimulationsutilizingtwounderwateracousticchannels.Theresultsshowthattheproposedalgorithmsarerobustenoughtochannelordermismatch.TheyhavealmostthesameperformanceasthecorrespondingZFalgorithmsunderahighsignal-to-noise(SNR)ratioandbe
5、tterperformanceunderalowSNR.1IntroductionTime-varyingcharacteristicandmulti-pathfadingofunderwateracousticchannelscaninducesevereintersymbolinterference(ISI)inhighdataratecommunicationsystems.Channelequalizationapplyingadaptivefiltersisoneofthetechniquestomitigatet
6、heeffectsofISI.Conventionally,theinitializationofanadaptivefilterisachievedbyaknowntrainingsequencefromatransmitterbeforedatatransmission,sothatvaluablechannelcapacityisreduced.Recently,blindequalizationtechnique(Stojanovic,1996)hasattractedmoreandmoreattention.Com
7、paredwithadaptiveequalizationtechnique,themajoradvantageofsuchtechniqueisthatnotrainingsequenceisneededtostartuporrestartthesystemwheneverthecommunicationbreaksdownunpredictably.Traditionally,symbolratesampledchanneloutputsequenceisstationaryandhigherorderstatistic
8、sareusedtoestimatethechannelandtocalculatetheequalizer.Morerecently,ithasbeenshownthatthechanneloutputsequenceiscyclostationaryifthesamplingratee
