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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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水声中ldpc码和码性能比较研究
DOI: 10.13232/j.cnki.jnju.2015.07.018
Keywords: 水声信道,ldpc码,turbo码
Abstract:
信道纠错编码对提高水声通信系统的误比特性能具有重要意义。本文将信道译码器和自适应判决反馈均衡器级连，比较研究了非规则ldpc码、(3,6)规则ldpc码和turbo码在浅海水声信道中的性能。结果表明：短码长时，三种纠错编码的性能基本相同，但随着码长的增大，非规则ldpc码的性能明显优于turbo码和规则ldpc码。当码长8000，误比特率10-4时，非规则ldpc码的性能比turbo码和规则ldpc码分别提高了约0.23和0.33db。
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