1.0尊正资讯https://zunzheng.com/news地面数字电视广播传输标准DVB-T/DVB-T2/DVB-H - 尊正资讯rich600338<blockquote class="wp-embedded-content" data-secret="ytG1FTyFF4"><a href="https://zunzheng.com/news/archives/17655">地面数字电视广播传输标准DVB-T/DVB-T2/DVB-H</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://zunzheng.com/news/archives/17655/embed#?secret=ytG1FTyFF4" width="600" height="338" title="《 地面数字电视广播传输标准DVB-T/DVB-T2/DVB-H 》—尊正资讯" data-secret="ytG1FTyFF4" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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https://zunzheng.com/news/wp-content/uploads/2020/11/图片4-18.png500281DVB-T标准于1997年颁布，国际电信联盟（ITU）将其接纳为ITU-R BT.1306标准中的系统B。该标准定义了DVB-T系统使用的信道编码、帧结构、星座映射、导频插入、载波模式等重要的调制参数。DVB-T系统采用了与ATSC不同的多载波C-OFDM调制方式，不仅能处理高斯信道，还能更好地克服延时信号的干扰，适应莱斯（Rice）和瑞利（Ray-leigh）信道，可实现单频网（SFN）广播。