电子技术
電子技術
전자기술
ELECTRONIC TECHNOLOGY
2013年
11期
69-71,64
,共4页
商萃萃%王树华%鲁坤%田薇%王宝兴
商萃萃%王樹華%魯坤%田薇%王寶興
상췌췌%왕수화%로곤%전미%왕보흥
三网融合%FTTH%TS流%算法%仿真波形图
三網融閤%FTTH%TS流%算法%倣真波形圖
삼망융합%FTTH%TS류%산법%방진파형도
three nets convergence%FTTH%TS stream%algorithm%simulation waveform
目前,光纤入户(FTTH)已成为实现三网融合的最终解决方案,但FTTH的总线型拓扑结构制约其难于实现真正的视频点播。为了缓解FTTH的带宽压力,采用了设计一种新的帧结构的方法,并且提出了光纤综合业务传输系统。本文即基于该系统提出的一种在三网融合中处理电视信号的方法。文章首先从电视信号传输流(TS:ProgramStream)的语法结构以及MEPG-2系统复用的基本结构入手,然后给出从TS流中解析出各路电视信号的算法,最后给出了该算法实现的部分仿真波形图。
目前,光纖入戶(FTTH)已成為實現三網融閤的最終解決方案,但FTTH的總線型拓撲結構製約其難于實現真正的視頻點播。為瞭緩解FTTH的帶寬壓力,採用瞭設計一種新的幀結構的方法,併且提齣瞭光纖綜閤業務傳輸繫統。本文即基于該繫統提齣的一種在三網融閤中處理電視信號的方法。文章首先從電視信號傳輸流(TS:ProgramStream)的語法結構以及MEPG-2繫統複用的基本結構入手,然後給齣從TS流中解析齣各路電視信號的算法,最後給齣瞭該算法實現的部分倣真波形圖。
목전,광섬입호(FTTH)이성위실현삼망융합적최종해결방안,단FTTH적총선형탁복결구제약기난우실현진정적시빈점파。위료완해FTTH적대관압력,채용료설계일충신적정결구적방법,병차제출료광섬종합업무전수계통。본문즉기우해계통제출적일충재삼망융합중처리전시신호적방법。문장수선종전시신호전수류(TS:ProgramStream)적어법결구이급MEPG-2계통복용적기본결구입수,연후급출종TS류중해석출각로전시신호적산법,최후급출료해산법실현적부분방진파형도。
Today, fiber-to-the-home has become the final solution for three nets convergence. But the bus topology structure of FTTH makes it difficult to achieve the true video on demand. In order to alleviate the pressure on the bandwidth of FTTH, this paper adopts a method for designing a new frame structure and puts forward an optical fiber integrated service transmission system. Based on this system this article puts forward a method for processing TV signal in three nets convergence. Firstly, the article starts with the grammatical structure of the television signal transport stream and the basic structure of MEPG-2 system multiplexing. Then it gives the algorithm which parse out various TV signals from the TS stream. Finally, it provides some simulation waveforms of the algorithm implementation.