| Turbo码在水声OFDM通信中的应用研究 |
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| 引用本文： | 桑恩方,徐小卡,乔钢,苏军.Turbo码在水声OFDM通信中的应用研究[J].哈尔滨工程大学学报,2009,30(1). |
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| 作者姓名： | 桑恩方 徐小卡 乔钢 苏军 |
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| 作者单位： | 哈尔滨工程大学,水声工程学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金 |
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| 摘 要： | 为了增强高速水声通信中信息传输的可靠性,采用了性能优越的Turbo码和OFDM相结合的方法,并与传统的卷积码进行了性能比较.仿真结果表明,在水声通信可以接受的信噪比范围内,采用Turbo码的误码性能明显优于无信道编码和卷积编码;在带宽利用率相同时使用该方案的水声通信系统性能优于无信道编码和卷积码.因此,把Turbo码与OFDM相结合的传输体制可以明显提高水声通信系统的传输速率和可靠性,从而在水声通信中具有良好的应用前景.
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| 关 键 词： | 正交频分复用 水声通信 Turbo码 Monte-Carlo仿真 |
Application study of turbo code for underwater acoustic communication based on OFDM |
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| SANG En-fang,XU Xiao-ka,QIAO Gang,SU Jun.Application study of turbo code for underwater acoustic communication based on OFDM[J].Journal of Harbin Engineering University,2009,30(1). |
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| Authors: | SANG En-fang XU Xiao-ka QIAO Gang SU Jun |
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| Affiliation: | College of Underwater Acoustic Engineering;Harbin Engineering University;Harbin 150001;China |
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| Abstract: | In order to enhance the reliability of high-speed underwater acoustic(UWA) communication systems,turbo code and orthogonal frequency division multiplexing(OFDM) were combined.Their joint performance was then compared with that of convolutional code.Simulation results proved that within the acceptable limit of signal-to-noise ratio,this method has better performance than other methods which do not use channel code,or use convolutional code in UWA communication.This applies when using the same modulation meth... |
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