地面数字电视广播的双国标SDTV和HDTV  

SDTV and HDTV of Digital Terrestrial Television Broadcasting in Dual Chinese Standards

作　　者：徐孟侠[1] 

机构地区：[1]北京大学电子学系,北京100871

出　　处：《电视技术》2009年第4期8-10,共3页Video Engineering

摘　　要：2008年起我国用地面国标(C-std)大规模启动地面数字电视广播,在8个城市实现2008北京奥运会的HDTV实况转播,但其视频编码仍然采用技术已落后的MPEG-2技术,即单国标。本文介绍双国标(C-std+AVS视频编码)SDTV和HDTV的4种技术模式,分别用以服务农村家庭和中心城市家庭。Digital terrestrial television broadcasting （DTTB） in Chinese Standard （C-std） has been started in China in large scale since the beginning of 2008, and real-time broadcasting of 2008 Olympic Games in HDTV has been realized in eight cities, but MPEG-2 video coding, an out-of-date technique, has been used in Mono Chinese Standard. In this paper, SDTV and HDTV of DTI＇B in Dual Chinese Standards （C-std ＋ AVS video coding） are introduced with four technical modes, in order to serve both rural and center cities families, respectively.

关 键 词：地面数字电视广播 中国地面数字电视标准 AVS标准 双国标 

分 类 号：TN911.73[电子电信—通信与信息系统]