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| 基于FPGA的Viterbi算法改进及其实现 | |
| 引用本文： | 朱磊基,汪涵,施玉松,邢涛,王营冠.基于FPGA的Viterbi算法改进及其实现[J].现代电子技术,2011,34(15):82-84. |
| 作者姓名： | 朱磊基 汪涵 施玉松 邢涛 王营冠 |
| 作者单位： | 1. 中国科学院上海微系统与信息技术研究所,上海,200050 2. 中国科学院上海微系统与信息技术研究所,上海200050;中国科学院嘉兴无线传感网工程中心,浙江嘉兴314006 3. 中国科学院上海微系统与信息技术研究所,上海200050;无锡物联网产业研究院,江苏无锡214135 |
| 基金项目： | 国家重大科技专项(2009ZX03006-003),国家重大科技专项(2009ZX03006-004) |
| 摘 要： | 为了在不改变译码效果的条件下,达到提高译码器的译码速度的目的,对传统的Viterbi算法的实现方法提出了两点改进：简化分支度量计算和复用加比选单元分组。FPGA实现以后显示,在获得同等译码性能的条件下,新的实现结构比改进前仅仅多耗费了可以忽略的资源,却可以达到接近原结构3倍的吞吐量和接近2倍的最大系统工作频率。 |
| 关 键 词： | Viterbi 改进 吞吐量 最大工作频率 |
FPGA-based Improvement and Implementation of Viterbi Algorithm |
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| ZHU Lei-ji,WANG Han,SHI Yu-song,XING Tao,WANG Ying-guan.FPGA-based Improvement and Implementation of Viterbi Algorithm[J].Modern Electronic Technique,2011,34(15):82-84. | |
| Authors: | ZHU Lei-ji WANG Han SHI Yu-song XING Tao WANG Ying-guan |
| Institution: | ZHU Lei-ji1,WANG Han1,SHI Yu-song1,2,XING Tao1,3,WANG Ying-guan1,2(1.Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Science,Shanghai 200050,China,2.Jiaxing Wireless Sensor Networks Engineering Center,Jiaxing 314006,3.Wuxi TOI Industrialization Research Institute,Wuxi 214135,China) |
| Abstract: | For the purpose of improving decoding speed of decoder without influence on decoding effect,two improvements(simplifing branch metric computation and grouping of reusing addition,comparison,selection units) for implementation of the traditional Viterbi algorithm are presented.FPGA implementation appears that the new architecture with same decoding performance as old one but negligible extra resource consumption can get almost three times of throughput and two times of system maximum working frequence in com... |
| Keywords: | Viterbi improvement throughput maximun working frequence |
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