在MPEG - 2标准的基础上，分析了PCR在数字电视传输系统中产生抖动的原因和校正的方法。
Based on the standard of MPEG-2, the cause of PCR jitter and PCR correction method in Digital Television Transmission System are analyzed.
文章在分析地面传输信道特性的基础上，介绍了地面广播数字电视的DVB - T标准，探讨了其核心的正交编码频分多路复用COFDM技术、前端发射设备的系统结构及其优缺点。
Base on the analysis of terrestrial transfer channel, the paper introduces the DVB-T standard, and discuss the core COFDM technology as well as front-end transmit system structure.
MPEG 2标准系统层中定义的传输流已经在事实上成为数字电视领域中系统层传输的普遍标准。
Transport stream defined in MPEG-2 standards now has become a general standard in digital TV field.
但由于目前三网合一的标准尚未确定，网络数据和数字电视的压缩数据流还不能在同一条线路中传输。
But now it is not popular that the network data stream and compressed MPEG2 data stream are transported in the same cable for some reasons of the standard.
在中国数字电视广播地面传输标准(DTMB)中，使用了非规则准循环ld P C码(QC-LDPC)作为前向纠错编码的核心部分。
In Chinese national standard for Digital Terrestrial Multimedia Broadcasting (DTMB), irregular Quasi Cyclic LDPC (QC - LDPC) code is used as core part of forward error correction coding.
在中国数字电视广播地面传输标准(DTMB)中，使用了非规则准循环ld P C码(QC-LDPC)作为前向纠错编码的核心部分。
In Chinese national standard for Digital Terrestrial Multimedia Broadcasting (DTMB), irregular Quasi Cyclic LDPC (QC - LDPC) code is used as core part of forward error correction coding.
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