通用MPEG-2解复用器算法研究与实现  

The Algorithm Study and Implementation of Universal MPEG-2 De-Multiplexer

作　　者：周正华[1] 蒋文军[1] 朱维乐[1] 

机构地区：[1]电子科技大学电子技术系,成都610054

出　　处：《系统工程与电子技术》2001年第6期63-65,共3页Systems Engineering and Electronics

摘　　要：以MPEG - 2为载体的数字化产品 (如DVB、非线性编辑 ,卫星直播等 )的飞速发展以及传输频带的日益紧张导致了复用器、解复用器的大量需求。解复用器具有系统时钟恢复、节目单生成、基本流多路分配的功能 ,因而在整个MPEG - 2系统中占据重要的地位。设计出一种通用的以软件为主、硬件为辅的解复用器实现方案。该方案集成了TS流、PS流解复用 ,其中主要设计包括系统时钟生成电路、同步算法、TS流中节目关联表及节目映射表解码算法。The highly development of digital products based on MPEG - 2 with usable transmittal bandwidth decreasing rapidly have resulted in the widely demand for the multiplexer and the de - multiplexer. The de - multiplexer has an important role in resuming system clock, generating program table, distributing the elementary stream. A universal de - multiplexer scheme which integrates TS and PS de- multiplexer is proposed, which depends highly on software with little hardware. In the paper, many main designs are detailed such as system clock generating, the algorithms about synchronization, PAT and PMT in TS stream, PSM in PS stream and so on.

关 键 词：多路复用器 数字通信 MPEG-2 

分 类 号：TN919.81[电子电信—通信与信息系统]