| 噪声信道中基于进化算法的矢量量化器的设计 |
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| 引用本文： | 李天昊,余松煜.噪声信道中基于进化算法的矢量量化器的设计[J].通信学报,2002,23(7):33-39. |
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| 作者姓名： | 李天昊 余松煜 |
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| 作者单位： | 上海交通大学,图像通信与信息处理研究所,上海,200030 |
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| 摘 要： | 本文提出了一个基于进化算法的信道最优矢量量化器（COVQ）设计算法。该算法在给定信道状态模型和存在信道噪声的情况下，可以有效地提高矢量量化器的性能，实现了信道最优矢量量化器的设计。与目前常用的码书设计算法比较，实验结果表明该算法可获得比传统算法更高的性能增益。
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| 关 键 词： | 噪声信道 矢量量化 VQ 进化算法 联合信源信道编码 信道最优矢量量化器 二进制对称信道 COVQ JSCC |
| 文章编号： | 1000-436X(2002)07-0033-07 |
| 修稿时间： | 2001年1月9日 |
The design of COVQ based on the evolutionary algorithm on noisy channel |
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| LI Tian-hao,YU Song-yu.The design of COVQ based on the evolutionary algorithm on noisy channel[J].Journal on Communications,2002,23(7):33-39. |
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| Authors: | LI Tian-hao YU Song-yu |
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| Affiliation: | LI Tian-hao,YU Song-yu1 |
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| Abstract: | An evolutionary algorithm based channel-optimized VQ (COVQ) design algorithm on noisy channel is presented in the paper. The evolutionary algorithm is introduced into the design of COVQ to achieve a significant improvement of VQ performance for a given noisy channel status model. This algorithm achieves significant gains in average distortion due to channel errors, over other conventional VQ design methods, as confirmed by experimental results. |
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| Keywords: | vector quantization evolutionary algorithm joint source-channel coding channel optimized VQ binary symmetric channel |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
