基于SOVA算法的Turbo码译码实现 |
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引用本文: | 龚茂康,徐友云,宋文涛,罗汉文. 基于SOVA算法的Turbo码译码实现[J]. 通信技术, 2003, 0(12): 45-46 |
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作者姓名: | 龚茂康 徐友云 宋文涛 罗汉文 |
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作者单位: | 1. 扬州大学电子与通信工程系,扬州,225009 2. 上海交通大学电子工程系,上海,200030 |
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基金项目: | 国家自然科学基金赞助项目(No.60072028)。 |
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摘 要: | 针对实现基于SOVA的Turbo码译码算法实现的各个环节,阐述了使译码器内外信息度量匹配的数据表示方法,指出了信息度量值的变化规律和数据长度的确定准则,提出了帧结尾加长处理,比传统的BR—SOVATurbo译码性能提高0.5dB左右。
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关 键 词: | Turbo码 SOVA算法 译码器 |
修稿时间: | 2003-03-28 |
Realization for Turbo- code Decode Based on SOVA |
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Abstract: | Associated with the many aspects of realization of Tur bo - code decode based on SOVA , a method for describing the inner and outer info rmation , which match in decoder, is introduced in this paper . The varying regu lation of information metric values and how to determine the length of data are also indicated . A method of inserting some additive data following the tail of frame is presented . Simulation results show that by the method we can gain over 0.5dB than conventional algorithm BR- SOVA. |
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Keywords: | Turbo- code SOVA decoder |
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