差转技术在地面数字电视覆盖建设中的应用

Application of Differential Conversion Technology in Terrestrial Digital Television Coverage Construction

差转技术,是地面数字电视差频转播的关键性技术。在当前积极开展地面数字电视覆盖建设的背景下,如何根据数字电视节目覆盖的需要利用好差转技术,实现节目信号传输手段的丰富,解决信号源不足的问题,是广播电视行业需要重点关注的技术性问题。为此,在概括介绍差转技术和地面数字电视的基础上,就差转技术在地面数字电视覆盖建设中发挥的具体功能以及在建设活动中的具体应用情况进行分析梳理,为地面数字电视覆盖建设中用好差转技术提供相关内容参考。

Differential conversion technology is the key technology of terrestrial digital TV differential frequency retransmission.Under the current background of actively developing the construction of terrestrial digital television coverage, how to make good use of differential conversion technology according to the needs of digital television program coverage, realize the enrichment of program signal transmission means, and solve the problem of insufficient signal sources, is a technical problem that needs to be focused on.Based on the general introduction of differential conversion technology and terrestrial digital television, this paper analyzes and sorts out the specific functions of differential conversion technology in terrestrial digital television coverage construction, as well as the specific application in construction activities, providing relevant content reference for making good use of differential conversion technology in terrestrial digital television coverage construction.