摘要
DTMB-A是中国自主研发的地面数字电视广播传输标准,其主要的性能指标达到并超越了欧洲的第二代地面数字电视标准DVB-T2。美国ATSC3.0作为广播与宽带的混合网络,它的诞生引起了业界的极大关注。主要对DTMB-A和ATSC 3.0物理层所采用的关键技术进行一个简要对比分析,不仅比较了这两种标准共有的前向纠错编码、星座映射、比特交织等技术,还介绍了ATSC 3.0标准中BICM、LDM等技术。论文总结了DTMB-A和ATSC 3.0各自的特点,这对探讨我国数字电视标准的发展具有一定的参考意义。
DTMB-A is self-dependent digital terrestrial television broadcasting transmission standards in our country, the main performance indicators of which meet and exceed that of DVB-T2, the second generation of terrestrial television digital TV standard in Europe. AS a hybrid network of broadcast and broadband, the birth of American ATSC 3.0 has aroused great concern in the indus- try. This article mainly focus on the comparative analysis of the key technologies at physical layer between DTMB-A and ATSC 3. 0, which not only compares the techniques of forward error correction coding, constellation mapping and bit interleaving in the both standards, but introduces BICM and LDM in ATSC3.0 standard. Besides, this paper summarizes the characteristics of DTMB-A and ATSC 3.0, which is of great reference to the development of digital television standard in China.
出处
《电视技术》
北大核心
2017年第4期119-125,共7页
Video Engineering
