| Turbo码译码性能的研究 |
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| 引用本文： | 于修文,葛万成.Turbo码译码性能的研究[J].通信技术,2008,41(7). |
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| 作者姓名： | 于修文 葛万成 |
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| 作者单位： | 同济大学电子与信息工程学院,上海,200092 |
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| 基金项目： | 德国岁德施瓦茨公司资助项目 |
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| 摘 要： | Turbo码基于随机编码的思想,将卷积编码与交织器结合使其性能接近香农极限,所以Turbo码被3G移动通信系统所采纳并在深海通信、卫星通信等功率受限领域得以应用.文中介绍了Turbo码的译码原理并分析了几种主要的译码方法,在Matlab环境下对Turbo码进行了仿真研究,分析了不同的迭代次数、译码算法、帧长、码率及分量码对其译码性能的影响.仿真结果表明Turbo码纠错性能优良,具有广泛的应用前景.
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| 关 键 词： | Turbo码 译码算法 迭代次数 帧长 误比特率 Turbo Codes 译码性能 仿真研究 Performance Decoding 前景 纠错性能 仿真结果 影响 分量码 码率 帧长 译码算法 迭代次数 环境 Matlab 译码方法 分析 原理 中介 |
Research on Decoding Performance of Turbo Codes |
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| YU Xiu-wen,GE Wan-cheng.Research on Decoding Performance of Turbo Codes[J].Communications Technology,2008,41(7). |
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| Authors: | YU Xiu-wen GE Wan-cheng |
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| Affiliation: | YU Xiu-wen,GE Wan-cheng (Dept. of Information & Communication Engineering,Tongji University,Shanghai 200092,China) |
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| Abstract: | Turbo codes are based on the idea of random encoding and the performance approaches the Shannon limit by combining convolutional encoding with interleaver, so they are used in 3G including the other power-limited area such as deep sea communication and satellite communication. Turbo codes theory and decoding algorithms are presented. The performance of Turbo codes is simulated with Matlab. The influence on the performance of Turbo codes, which is resulted from the iterations, decoding algorithms, frame size... |
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| Keywords: | Turbo codes decoding algorithms iterations frame sizes BER |
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