| 分布式视频编码中符号Turbo码交织器的设计 |
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| 引用本文： | 史萍,罗坤.分布式视频编码中符号Turbo码交织器的设计[J].电视技术,2008,32(4):35-37. |
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| 作者姓名： | 史萍 罗坤 |
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| 作者单位： | 中国传媒大学,信息工程学院,北京,100024 |
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| 摘 要： | 分析了交织器在Turbo码中的作用,指出了现有的几种交织器的缺点.设计了两种新型的基于块交织的S随机交织器和基于伪随机交织的S随机交织器.仿真结果表明,与现有的几种交织器相比,这两种交织器在Turbo码译码迭代次数及延时方面性能更好,更适合于分布式视频编码系统.
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| 关 键 词： | Turbo码 交织器 S随机交织器 分布式视频编码 |
| 文章编号： | 1002-8692(2008)04-0035-03 |
| 修稿时间： | 2008年2月13日 |
Interleavers Design for Symbol-based Turbo Codes in Distributed Video Coding |
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| SHI Ping,LUO Kun.Interleavers Design for Symbol-based Turbo Codes in Distributed Video Coding[J].Tv Engineering,2008,32(4):35-37. |
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| Authors: | SHI Ping LUO Kun |
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| Affiliation: | SHI Ping,LUO Kun (School of Information Engineering,Communication University of China,Beijing 100024,China) |
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| Abstract: | The functions of interleavers in Turbo codes are analyzed and the disadvantages of several existing interleavers are pointed out. Two novel interleavers, Block-based S-random Interleaver(BSI) and Pseudo Random-based S-random Interleaver(PRSI), are designed. Simulation results indicate that compared to the existing interleavers, the designed interleavers have better performance in aspects of iteration times of Turbo decoding and latency, and are therefore more suitable for distributed video coding system. |
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| Keywords: | Turbo code interleaver S-random interleaver distributed video coding |
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