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地面数字电视引起了人们对收视和获取信息方式的变化,地面数字电视新一轮应用即将大规模进行。本文介绍了地面数字电视技术的定义、传输和覆盖等理念,总结了数字电视技术普及推广的方法和注意点。地面数字电视数字电视(DTV:Digital Television)指的是采用数字技术把声音与活动图像等信号进行处理、压缩和编码,通过实时广播或者存储之后,提供给用户接收与播放的一种电视系统。在系统的众多环节中,从演播室制作节目,接着经过处理、传送、存储,再到接收、显示,这些过程
Terrestrial digital television has caused people to watch and access to information changes in the way, a new round of terrestrial digital TV applications will be carried out on a large scale. This paper introduces the definition, transmission and coverage of terrestrial digital television technology, summarizes the methods and points of popularization of digital television technology. Digital Television Terrestrial Television (DTV) refers to a television system that uses digital technology to process, compress and encode audio and moving picture signals and provide them to users for reception and playback through real-time broadcast or storage. In many aspects of the system, programs are produced from the studio, then processed, transferred, stored, then received, displayed, and these processes