本文试从数字电视的原理及结构出发，讨论数字电视播出系统的实施。
This Article will, beginning from the theory and structure of digital TV, discuss the implementation of digital TV broadcasting system.
数字电视播出系统的可靠性直接反映整个系统的质量优劣，是确保能否进行安全、可靠的电视播出的关键。
The reliability of digital television broadcast system can directly reflect the quality of the system and is very critical for the proper function of the system.
为了避免影响到电视播出机构，他的系统使用GPS来确定自己的位置；然后它对Web进行检测，以便找出该地区活跃的电视台有哪些。
To avoid treading on the toes of TV broadcasters, his system uses GPS to determine its location; then it checks the Web to find out what stations are active in the area.
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