Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (17): 154-160.

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Resarch on demultiplex for CMMB based on finite automaton

LEI Guoping, TAN Zefu   

  1. College of Electronic and Information Engineering, Chongqing Three Gorges University,Chongqing 404100, China
  • Online:2012-06-11 Published:2012-06-20

有限自动机在CMMB解复用中的应用研究

雷国平,谭泽富   

  1. 重庆三峡学院 电子与信息工程学院,重庆 404100

Abstract: Through analyzing the multiplexing frame structure of China Mobile Multimedia Broadcasting(CMMB) system, it designs a method of the terminal demultiplex based on finite automaton. This method uses finite automaton theory to classify code stream from terminals, summarizes the status of various relevant information, designs a finite automaton based on transformation conditions between the states. After achieved by C code, the finite automaton can efficiently process code stream from terminals. When the demultiplex completed, various kinds of useful information can be saved for other modules using.

Key words: China Mobile Multimedia Broadcasting(CMMB), multiplex, demultiplex, finite automaton

摘要: 通过对中国移动多媒体广播(CMMB)系统复用帧结构的分析,运用有限自动机原理,提出终端解复用的一种设计方法。对终端接收到的码流进行分类,归纳出码流中各种信息的状态,根据各种状态之间的转换条件,设计出了有限自动机。用C代码实现后,可以看出该有限自动机不仅能很好地解析终端接收的码流,而且,解析后能将各种有用的信息保存起来,以供其他模块使用。

关键词: 中国移动多媒体广播, 复用, 解复用, 有限自动机