| 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。 |
| 关键词: Turbo码 迭代译码 频谱分析 水声信道 |
| DOI： |
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| 基金项目:福建省自然科学基金资助项目(A0410003) |
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| Design and implementation of Turbo decoding system in underwater acoustic communication |
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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. |
| Key words: Turbo code interative decoding spectral analysis underwater acoustic(UWA) |
