| Turbo码译码算法的时延改进分析 |
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| 引用本文： | 毛宁,匡镜明,刘家康.Turbo码译码算法的时延改进分析[J].北京理工大学学报,2003,23(1):105-108. |
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| 作者姓名： | 毛宁 匡镜明 刘家康 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 基金项目： | 国防科工委预研项目;01000004100103022; |
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| 摘 要： | 通过对Turbo码最大似然译码MAP算法（maximum posteriori probability algorithm）和SOVA算法（soft output viterbi algorithm）的比较和对SOVA算法的比较深入的分析，对Turbo码在译码过程中存在的时延较大的问题做出了一些改进，并且针对引进时延的不同原因讨论了具体的解决方案，通过Matlab进行仿真，表明这些改进是有意义的。
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| 关 键 词： | 译码算法 时延 Turbo码 最大后验概率算法 软输出维特比算法 并行级联卷积码 MAP算法 SOVA算法 |
| 文章编号： | 1001-0645(2003)01-0105-04 |
| 收稿时间： | 2002/5/29 0:00:00 |
| 修稿时间： | 2002年5月29日 |
Time Delay Analysis of Turbo Code Decoding Algorithms |
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| MAO Ning,KUANG Jing-ming and LIU Jia-kang.Time Delay Analysis of Turbo Code Decoding Algorithms[J].Journal of Beijing Institute of Technology(Natural Science Edition),2003,23(1):105-108. |
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| Authors: | MAO Ning KUANG Jing-ming and LIU Jia-kang |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | Through a comparison of the MAP and SOVA algorithms of the Turbo code and an analysis on the SOVA algorithm, some improvements upon its time delay in Turbo code decoding were arrived at and measures for solving the problem were discussed. Through computer simulation, the paper presents some useful conclusions. Simulation results show that the improvements are effective. |
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| Keywords: | Turbo code MAP algorithm SOVA algorithm |
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