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| Turbo乘积码的性能及其算法的几点改进 | |
| 引用本文： | 肖华文,张申如,王庭昌. Turbo乘积码的性能及其算法的几点改进[J]. 解放军理工大学学报(自然科学版), 2001, 2(5): 5-9 |
| 作者姓名： | 肖华文 张申如 王庭昌 |
| 作者单位： | 1. 解放军理工大学通信工程学院, 2. 解放军理工大学理学院, 3. 总参第63研究所, |
| 基金项目： | 复旦大学专用集成电路与系统国家重点实验室资助 . |
| 摘 要： | 1993年提出的Turbo码因其优异的性能而引起编码界的关注.最近所提出的TPC(Turbo ProductCode)是Turbo码的一个分支,它是一种分组纠错码,具有良好的性能.分析和讨论了TPC在加性高斯白噪声(AwGN)信道下的性能,并对Pyndiah提出的基于契斯算法的TPC译码算法作了分析和改进;详细讨论了多个参数对TPC性能的影响,比如,迭代次数、量化比特数、最不可信码元位置数等;提出了一种试探序列生成方法.这种生成方法可以使译码计算量减少近一半,而不影响硬判决能力,译码系统的整体性能也无明显下降. |
| 关 键 词： | Turbo码 Turbo乘积码 契斯算法 |
| 文章编号： | 1009-3443(2001)05-0005-05 |
| 修稿时间： | 2001-04-22 |
Performance of TPC and Some Improvement of its Decode Algorithm |
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| XIAO Hua-wen,ZHANG Shen-ru and WANG Ting-chang. Performance of TPC and Some Improvement of its Decode Algorithm[J]. Journal of PLA University of Science and Technology(Natural Science Edition), 2001, 2(5): 5-9 | |
| Authors: | XIAO Hua-wen ZHANG Shen-ru WANG Ting-chang |
| Affiliation: | XIAO Hua-wen 1,ZHANG Shen-ru 2,WANG Ting-chang 3 |
| Abstract: | Turbo code put forward in 1993 has caught the code field's eye. TPC (Turbo Product Code), brought forward just now as a branch of Turbo code, is a kind of block correct error codes with good performance. In the paper we discuss its performance and make some improvement on it. First, we discuss the infection of some parameters particularly; second, we present a method for generating test sequences. It can cut down half of calculation, while the solid decoding capacity isn't influenced and the total performance decreases little.. |
| Keywords: | Turbo codes TPC (Turbo Product Code) chase arithmetic |
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