DVB-T2物理层管道及其对国标系统的启示  

Study of DVB-T2 Physical Layer Signaling and Influence of DTMB System

作　　者：邱石 彭克武[1,2] 

机构地区：[1]清华大学电子工程系 [2]清华信息科学与技术国家实验室,北京100084

出　　处：《电视技术》2009年第12期6-8,23,共4页Video Engineering

摘　　要：重点研究了DVB-T2系统的物理层管道,从主要处理模块、物理层信令与T2帧的帧结构等方面,分析与总结了物理层管道(PLP)的传输机制,并指出使用物理层管道进行多业务传输的诸多优点。在参考DVB-T2系统中物理层管道的基础上,还提出了在国标DTMB系统中划分物理层子信道进行多业务传输的基本思路,目的在于兼容现有国标系统的接收设备,并能在一定程度上实现与DVB-T2系统基于物理层管道进行多业务传输的相似优势。A comprehensive study on the Physical Layer Pipelines （PLPs）-based data transmission in DVB-T2 systems is performed from several aspects including the processing modules, the physical layer signaling, and the framing structure. Besides, the significance of the PLPs for multi-service transmission in physical layer is also addressed. Referred to the PLPs in DVB-T2 systems, a method for multi-service transmission based on physical layer sub-channel is presented, which is suitable for the systems normalized by DTMB, the Chinese national standard for digital television terrestrial broadcasting transmission. The presented method is able to achieve some of the advantages of the PLPs-based multi-service transmission while maintaining the full compatibility with the existing DTMB systems.

关 键 词：DVB—T2 PLP 多业务传输 帧结构 DTMB 

分 类 号：TN919.81[电子电信—通信与信息系统]