数字电视信号的发射与接收技术探析

Analysis on the transmitting and receiving technology of digital TV signal

信息技术的发展极大地丰富了人们日常的休闲娱乐方式。其中数字电视的出现赋予了传统电视节目新的生命力,使电视节目的视听内容变得更加丰富起来,视听质量也更高,有效增强了电视媒体在广播传媒领域的竞争力。但是数字电视在实际使用过程中依然会受到一些问题的影响。其主要影响便是数字电视信号在发射、传输和接受方面的问题,造成数字电视信号不定时出现中断现象,从而影响了数字电视的播放质量。本文便从信号发射,信号传输和信号接收三个角度详细地进行了论证,分析了增强数字电视信号质量的相关措施或技术。

The development of information technology has greatly enriched people's daily leisure and entertainment methods.Among them,the emergence of digital TV gives new vitality to traditional TV programs,which makes the audio-visual content of TV programs richer and the audio-visual quality higher,and effectively enhances the competitiveness of TV media in the field of broadcast media.However,digital TV will still be affected by some problems in actual use.Its main influence is the problems in transmission,transmission and reception of digital TV signals,which cause the interruption of digital TV signals from time to time,thus affecting the playing quality of digital TV.This paper demonstrates in detail from three angles of signal transmission,signal transmission and signal reception,and analyzes the relevant measures or technologies to enhance the digital TV signal quality.