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1、北京郵電大學(xué)碩士學(xué)位論文SDH寬帶接入平臺傳輸接口單元的設(shè)計與實現(xiàn)姓名:李冠宇申請學(xué)位級別:碩士專業(yè):信號與信息處理指導(dǎo)教師:雷振明20050307北京郵血大學(xué)碩士學(xué)位論文摘要SDH寬帶接入平臺傳輸接口單元的設(shè)計與實現(xiàn)摘要接入網(wǎng)部分的光纖化是接入網(wǎng)發(fā)展的趨勢,以APON、EPON和GPON為代表的無源光接入技術(shù)憑借其巨大的發(fā)展?jié)摿⒊蔀槲磥砉饫w接入的主要接入方式。但就目前的市場形勢看,基于SDH技術(shù)的有源光接入方式(SDH.AON),有成本低和技術(shù)成熟度高的優(yōu)勢,是比較經(jīng)濟(jì)和適用的解決方案。對于SDH有源光接入網(wǎng)的來說,分插復(fù)用器(ADM)是接入網(wǎng)中應(yīng)用最廣泛的設(shè)備之一,可以提供業(yè)務(wù)數(shù)據(jù)
2、的方便接入和取出。正是基于以上考慮,SDH寬帶接入平臺(SEApoint)為STM.1級別上的ADM設(shè)各,本人完成了SEApoim傳輸接口單元全部的硬件設(shè)計及調(diào)測工作。本文首先介紹了光接入網(wǎng)中的AOPN、EPON、GPON,然后,著重描述了SDH-AON的結(jié)構(gòu)、目前的應(yīng)用方案以及在SDH.AON中使用的SDH設(shè)備的特點。其次,介紹了SDH寬帶接入平臺(SEApoim)項目的背景、SEApoint在接入網(wǎng)中的位置,然后具體描述了SEApoint的體系結(jié)構(gòu)和功能。最后,介紹了SEApoint傳輸接口單元的設(shè)計及調(diào)測過程,著重闡述了在設(shè)計傳輸接口單元過程中若干問題的解決、PCB設(shè)計中的關(guān)鍵問題
3、的探討、調(diào)測的的步驟和過程等。關(guān)鍵詞:光接入網(wǎng)寬帶接入平臺SDH分插復(fù)用器北京郵電大學(xué)碩士學(xué)位論文ABSTRAC丁THEDESIGNANDIMPLEMENToFTRANSMISSIONINTEREACEUNITINSDHBRoADBANDACCESSPLATFoRMABSTRACTThegreatuseoffiberintheAccessNetwork(AN)isthetrendofitsdevelopment.Thepassiveopticalaccesstechnology,whoserepresentativeisAPON,EPONandGPON,willbecomethemain
4、kindoffuturefiberaccesswaydependingonitsmassivepotential.However,accordingtothepresentmarketsituation,theActiveOpticalNetworkbasedonSDH(SDH-AON)hastheadvantageoflowcostandhi曲technologymaturityandthereforeisaileconomicalandappropriatesolution.AsfarasSDH-AONisconcerned,Add/DropMultiplexer(ADM)isone
5、ofthemostwidespread—appliedequipmentsandfacilitatesgettinginandtakingoutservicedata.Takingthisintoconsideration,IhavedonethehardwaredesignandtestofSEApointtransmissioninterfaceunit,usingSEApointastheADMequipmentatSTM-llevel.ThispaperfirstintroducesAPON,EPONandGPON,thentakesemphasisonthestructureo
6、fSDH—AON,presentapplicationsolutionandthefeatureofSDHequipment.Secondly,itdescribesthebackgroundofSEApointproject,thepositionofSEApointinaccessnetwork,thesystemstructureandfunctionofSEApoint.Atlast,itdiscussesthedesignandtestprocessofSEApoint北京啦電大學(xué)碩士學(xué)位論文transmissioninterfaceunit,thesettlementofse
7、veralquestionsindesigningtransmissioninterfaceunit,thekeyproblemofPCBdesign,thestepandprocessofthetest.KEYWORDS:opticalaccessnetworkbroadbandaccessplatformSDHADM獨創(chuàng)性(或創(chuàng)新性)聲明本人聲明所呈交的論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。盡我所知,除了文中特別