| 水下数据传输Turbo码译码系统的实现 |
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| 引用本文： | 高春仙,刘 慧.水下数据传输Turbo码译码系统的实现[J].海洋科学,2007,31(10):55-60. |
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| 作者姓名： | 高春仙 刘 慧 |
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| 作者单位： | 厦门大学,通信工程系,教育部水声通信与海洋信息技术重点实验室,福建,厦门,361005 |
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| 摘 要： | 为了在恶劣的水声信道中确保数据的可靠传输,采用性能优异的Turbo码,以6711DSP为核心处理单元构建译码系统。系统采用戈泽尔算法进行跳频的软解调,迭代的软输出维特比译码算法(SOVA)进行译码。系统经过实验室水池的试验,证实能保证译码的实时性及其在恶劣信道中数据传输的正确性,具有相当优异的性能。
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| 关 键 词： | Turbo码 迭代译码 频谱分析 水声信道 |
| 文章编号： | 1000-3096（2007）10-0055-06 |
| 收稿时间： | 2007/4/16 0:00:00 |
| 修稿时间： | 2007-04-16 |
Design and implementation of Turbo decoding system in underwater acoustic communication |
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| GAO Chun-xian,LIU Hui.Design and implementation of Turbo decoding system in underwater acoustic communication[J].Marine Sciences,2007,31(10):55-60. |
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| Authors: | GAO Chun-xian LIU Hui |
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| Institution: | Key Laboratory for Underwater Acoustic Communication and Marine Information Technology, Ministry of Education, Communication Department, Xiamen University, Xiamen 361005, China |
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| Abstract: | In this issue,an excellent performed Turbo code was introduced into underwater acoustic(UWA)channel.A Turbo decoder based on 6711DSP was constructed,employing Goertzel arithmetic to realize soft Frequency-hopped demodulation,iterative soft-output Viterbi arithmetic(SOVA)arithmetic as the core decoding arithmetic.The decoder system was tested under the real UWA channel. |
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| Keywords: | Turbo code interative decoding spectral analysis underwater acoustic(UWA) |
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