Available via terrestrial signals, satellite and cable, digital broadcasting will herald an explosion in the number of available channels.
通过陆地信号，卫星和电缆，数字式的广播将在可收到的频道的数量上带来一次大爆炸。
At present our country has cable digital TV, digital terrestrial television and IPTV three digital transmission program.
目前我国已有有线数字电视、地面数字电视和IPTV三种数字节目传输方式。
DVB is the digital HDTV standard that developed by more than 170 organizations in Europe. It mainly comprises satellite (DVB-S), terrestrial (DVB-T) and cable (DVB-C) digital television systems.
数字视频广播(DVB)是欧洲170多个组织共同开发出的数字高清晰度电视标准，它主要由卫星广播(DVB - S)、地面广播(DVB - T)和有线电视(DVB - C)三部分组成。
The point where a marine cable connects to terrestrial facilities.
海底电缆连接陆地设备的接头。
Signal can come from cable, satellite antenna, broadband networks, and terrestrial broadcasting.
信号可以来自有线电缆、卫星天线、宽带网络以及地面广播。
Compared with cable digital TV and satellite digital TV, channel to the environment of terrestrial digital TV transmission system is more complex.
与有线数字电视和卫星数字电视相比，地面数字电视传输系统中的信道环境要复杂的多。
In DVB satellite transmission system used QPSK, using QAM cable transmission, terrestrial transmission using COFDM (coded orthogonal frequency division multiplexing) way.
在DVB系统中卫星传输采用QPSK，有线传输采用QAM方式，地面传输采用COFDM(编码正交频分复用)方式。
The development of HDTV STB for terrestrial and cable broadcasting systems is now entering upon a new industrialization stage.
适用于地面、电缆传输系统的数字高清晰度电视接收机顶盒，正在由研制阶段走向规模化生产。
With the increasing number of terrestrial satellite and cable channels made available, the user has a wide range of programs to select from.
随着卫星频道和有线电视频道数量的增多，用户可以选择的电视节目范围也越来越广，为选择一个合适的电视节目常常要花费许多时间。
Digital television broadcasting has three main types: terrestrial, satellite, and cable-based digital TV.
数字电视广播主要通过卫星、有线及地面三种传输方式实现。
Generally, because the effects of environment on submarine fiber cable and the terrestrial fiber cable are smaller, its PMD has smaller fluctuation and is easy to compensate.
架空光缆因受环境影响比较大，尤其受气温变化的影响较大，所以pmd波动也较大，对其补偿要困难一些。
Generally, because the effects of environment on submarine fiber cable and the terrestrial fiber cable are smaller, its PMD has smaller fluctuation and is easy to compensate.
架空光缆因受环境影响比较大，尤其受气温变化的影响较大，所以pmd波动也较大，对其补偿要困难一些。
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