| 三网融合中前端电视信号的处理 |
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| 引用本文： | 商萃萃,王树华,鲁坤,田薇,王宝兴.三网融合中前端电视信号的处理[J].电子技术,2013(11):69-71,64. |
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| 作者姓名： | 商萃萃 王树华 鲁坤 田薇 王宝兴 |
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| 作者单位： | [1]聊城大学物理科学与信息工程学院,252059 [2]茌平县第一中学,山东茌平县 |
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| 摘 要： | 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：Program Stream）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。
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| 关 键 词： | 三网融合 FTTH TS流 算法 仿真波形图 |
The Front-end Television Signal Processing in Triple Play |
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| Shang Cuicui Wang Shuhua Lu kun Tian wei Wang Baoxing.The Front-end Television Signal Processing in Triple Play[J].Electronic Technology,2013(11):69-71,64. |
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| Authors: | Shang Cuicui Wang Shuhua Lu kun Tian wei Wang Baoxing |
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| Affiliation: | Shang Cuicui Wang Shuhua Lu kun Tian wei Wang Baoxing. (1 .College of Physics Science and Information Engineering, Liaocheng University 2.No. 1 Middle School of Chiping County, Chiping County, Shandong) |
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| Abstract: | 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. |
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| Keywords: | three nets convergence FTTH TS stream algorithm simulation waveform |
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