| Turbo码实用的Log-MAP译码算法研究 |
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| 引用本文： | 周金喜,孙季丰.Turbo码实用的Log-MAP译码算法研究[J].广西师范大学学报(自然科学版),2005,23(1):17-20. |
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| 作者姓名： | 周金喜 孙季丰 |
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| 作者单位： | 华南理工大学,电子与信息学院,广东,广州,510640;华南理工大学,电子与信息学院,广东,广州,510640 |
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| 摘 要： | 介绍了Turbo码基本结构，阐述了Log—MAP算法的译码机理，在此基础上就简化Log—MAP算法作了探讨，分析了三种简化Log—MAP算法中非线性运算以利于硬件实现的方法：Max—Log—MAP算法，Lookup—Log—MAP算法，Lineai—Log—MAP算法，最后通过仿真对它们进行了性能上的模拟和比较．
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| 关 键 词： | 信道编码 Turbo码 Log-MAP算法 硬件实现 |
| 文章编号： | 1001-6600(2005)01-0017-04 |
STUDY OF LOG-MAP ALGORITHM SUITABLE FOR IMPLEMENTATION OF TURBO DECODERS |
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| ZHOU Jin-xi,SUN Ji-feng.STUDY OF LOG-MAP ALGORITHM SUITABLE FOR IMPLEMENTATION OF TURBO DECODERS[J].Journal of Guangxi Normal University(Natural Science Edition),2005,23(1):17-20. |
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| Authors: | ZHOU Jin-xi SUN Ji-feng |
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| Abstract: | The basic structure of turbo codes and principle of Log-MAP algorithm of the turbo codes are introduced.The problem related to the simplification of the Log-MAP algorithm and three methods of simplified nonlinear operation of Log-MAP algorithm:Max-Log-MAP algorithm,Lookup-Log-MAP algorithm,Linear-Log-MAP algorithm are further discussed and analyzed,Finally,the performances of these methods are compared through the simulation of MATLAB. |
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| Keywords: | channel coding turbo codes Log-MAP algorithm implementation of hardware |
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