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Digital Broadcasting Techno-Economic Efficiency Simulation Model

机译:数字广播技术经济效率仿真模型

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摘要

Digital television (TV) is the first major change to the terrestrial broadcast of TV since the introduction of color (about four decades ago). There are three main transmission systems for delivering TV service to end-users, by satellite, cable or terrestrial. The digital terrestrial television (DTT) system can deliver television even to the mobile devices [1]. Data-casting services and high-definition (HD) television content is available via satellite and cable but, until now, terrestrial users have not received data and HD content because its transmission requires a wider data channel than that used for standard definition (SD) TV - Digital Video Broadcasting Terrestrial (DVB-T) and Moving Picture Expert Group MPEG-2 coding and compression standard. The new technologies, like MPEG-4/H.264 and DVB-T2, provide increased capacity and ruggedness in the terrestrial transmission environment.
机译:自从彩色技术问世以来(大约四十年前),数字电视(TV)是电视地面广播的首次重大变化。有三种主要的传输系统,可通过卫星,电缆或地面向终端用户提供电视服务。数字地面电视(DTT)系统甚至可以将电视传送到移动设备[1]。可以通过卫星和电缆获得数据广播服务和高清(HD)电视内容,但是直到现在,地面用户还没有收到数据和HD内容,因为其传输所需的数据通道比标准清晰度(SD)所用的还要宽。电视-地面数字视频广播(DVB-T)和运动图像专家组MPEG-2编码和压缩标准。 MPEG-4 / H.264和DVB-T2等新技术在地面传输环境中提供了更高的容量和耐用性。

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