| 串行级联码在浅海水声通信中的性能研究 |
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| 引用本文： | 丁姝,黄华,崔炳胜,赵晓群.串行级联码在浅海水声通信中的性能研究[J].大连民族学院学报,2009,11(5):417-421. |
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| 作者姓名： | 丁姝 黄华 崔炳胜 赵晓群 |
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| 作者单位： | 1. 同济大学,电子与信息工程学院,上海,201804
2. 天津通信段,天津,300140 |
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| 摘 要： | 基于π/4-QPSK调制解调方式讨论串行级联码在浅海水声信道中的实现方案,建立了浅海水声信道模型,并在此基础上针对多径干扰和多普勒频移进行了仿真。仿真表明,串行级联码能有效地减小密集突发错误,保证通信的可靠性。串行级联码的性能明显大于单独的RS码或卷积码,在不考虑译码复杂度的情况下,误码率低于Turbo码和LDPC码。
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| 关 键 词： | 浅海水声信道 π/4-QPSK 串行级联码 RS码 卷积码 Turbo码 LDPC码 |
Performance Study on Serial Concatenated Codes in Shallow Seawater Acoustic Communication |
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| DING Shu,HUANG Hua,CUI Bing-sheng,ZHAO Xiao-qun.Performance Study on Serial Concatenated Codes in Shallow Seawater Acoustic Communication[J].Journal of Dalian Nationalities University,2009,11(5):417-421. |
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| Authors: | DING Shu HUANG Hua CUI Bing-sheng ZHAO Xiao-qun |
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| Institution: | DING Shu1,HUANG Hua1,CUI Bing-sheng2,ZHAO Xiao-qun1(1.College of Electronics & Information Engineering,Tongji University,Shanghai 201804,China,2.Tianjin Communications Party,Tianjin 300140,China) |
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| Abstract: | Based on π/4-QPSK modulation and demodulation,this paper demonstrates an implementation of serial concatenated codes in acoustic channels in shallow seawater and builds an acoustic channel model for shallow seawater.Multipath interference and doppler shift are emulated on that basis.The emulation shows that serial concatenated codes reduce dense burst errors effectively and enable reliable communication.Serial concatenated codes apparently outperform Reed Solomon（RS） codes or convolutional codes. They feature a bit -error rate （BER） lower than those of Turbo codes and LDPC codes without regard to decoding complexity. |
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| Keywords: | acoustic channel in shallow seawater π/4-QPSK serial concatenated code Reed Solomon（RS） code convolutional code turbo code LDPC code |
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