AVS中可变长解码器的硬件设计  

Hardware Design of Variable Length Code Decoder in AVS

作　　者：刘群鑫[1] 

机构地区：[1]同济大学通信软件及专用集成电路设计中心,上海200092

出　　处：《现代电子技术》2007年第23期185-187,194,共4页Modern Electronics Technique

摘　　要：AVS是我国自主制定的音视频编码技术标准。简要介绍AVS标准视频压缩部分的特点,重点研究AVS可变长熵解码的原理和技术方法并进行优化,主要采用并行解码结构以达到实时解码。在此基础上提出了一种针对AVS视频编码标准的变长码——指数哥伦布码解码的硬件设计结构,最后给出实现该硬件结构对应FPGA实验仿真结果。AVS is the audio and video standard of China. By briefly introducing the characteristic of the audio compression part of AVS and studying the theory and the technique of AVS entropy decoding, this paper optimizes the algorithm of AVS entropy decoding through a parallel architecture to realize the real - time decoding. And then it presents a hardware design of a AVS decoder for Variahle Length Code（VLC） named Exp - Golomh Code. The design has been implemented and the simulation resuh is offered.

关 键 词：AVS 解码器 可变长码 指数哥伦布码 

分 类 号：TN764[电子电信—电路与系统]