下一代地面数字电视广播系统关键技术  

Key Techniques of Next Generation Digital Television Terrestrial Multimedia Broadcasting

作　　者：杨知行 王昭诚[1] 

机构地区：[1]清华大学数字电视技术研究,中心北京100084

出　　处：《电视技术》2011年第8期22-27,共6页Video Engineering

基　　金：质检公益性行业科研专项经费资助项目(200910244)

摘　　要：较全面地介绍了下一代中国地面数字电视广播系统的关键技术,其中包括改进的帧结构、发射分集、先进的信道编码和调制、多业务支持、广播回传信道和时频域定位等。仿真结果表明这些技术的应用使系统性能良好。In this paper, the key techniques of Chinese next generation digital television terrestrial multimedia broadcasting system are introduced, including the improved frame structure, transmit diversity, advanced channel coding and modulation, muhi-service supporting, broadcasting feedback channel and time-frequency location and so on. The simulating results show that by using these techniques, the system has good performance.

关 键 词：DTMB 帧结构 分集 LDPC BICM—ID 

分 类 号：TN949.197[电子电信—信号与信息处理]