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.
为在多路径传输中结合多条流的编码方式，开发了一种基于率歪曲优化的算法，进而把一条未加工的视频流分成多条流。
To combine multistream coding with multipath transport(MPT), a rate-distortion optimal algorithm to code a raw video stream into multistream is developed.
为在多路径传输中结合多条流的编码方式，开发了一种基于率歪曲优化的算法，进而把一条未加工的视频流分成多条流。
To combine multistream coding with multipath transport(MPT), a rate-distortion optimal algorithm to code a raw video stream into multistream is developed.
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