张战争,张效民,王文博.基于正交频分复用的水声通信系统仿真[J].声学技术,2007,(5):855~859 |
基于正交频分复用的水声通信系统仿真 |
The study of underwater acoustic communication system simulation based-on OFDM technique |
投稿时间:2006-07-25 修订日期:2006-11-10 |
DOI: |
中文关键词: 正交频分复用 水声 系统仿真 |
英文关键词: OFDM underwater acoustic system simulation |
基金项目: |
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中文摘要: |
为了克服由信号的多途传输引起的码间干扰,通过仿真探讨了MQAM-OFDM通信系统在15公里距离的多径衰落水声信道中系统可靠性、有效性及抗多径能力。仿真结果表明,它具有较强的抗多径干扰能力,适当选择不同的编码交织、调制方式可以实现系统的多速率有效传输,在现代水声通信中应具有很好的发展前景。 |
英文摘要: |
In order to overcome inter-symbol interference (ISI) caused by multipath propagation over UWA channels,reliability and validity of MQAM-OFDM system aimed at UWA communications over 15 kilometers is studied and simulated. The results show that its capability of overcoming co-channel interference,appropriate coding and interweave and modulation can be used in transmission with multiple rates. MQAM-OFDM systems have good prospects in UWA communications. |
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