本文较详细地介绍了中国手机电视传输标准（CMMB）的信道处理模块组成，分析了系统中用到的帧结构、信道编码和调制等关键技术，阐明了这些信道处理技术的工作原理和作用。-This paper gives a detailed introduction on China s mobile TV transmission standard (CMMB) channel processing modules, analysis of the system used in the frame structure, channel coding and modulation and other key technology, illustrates the channel processing technology works and functions