| 基于MIMO-OFDM的高速水声通信技术研究 |
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| 引用本文： | 邓红超,巩玉振,蔡惠智. 基于MIMO-OFDM的高速水声通信技术研究[J]. 通信技术, 2009, 42(11): 37-39 |
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| 作者姓名： | 邓红超 巩玉振 蔡惠智 |
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| 作者单位： | 1. 中国科学院声学研究所,北京,100190;中国科学院研究生院,北京,100039
2. 中国科学院声学研究所,北京,100190 |
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| 摘 要： | OFDM技术可以对抗水声信道中的多径传播并能实现高的频谱效率,空时编码技术则能够获得空间增益并对抗信道衰落。文中在分析OFDM同步误差和空时分组编码原理的基础上,将这两种无线新技术应用于高速水声通信中,设计实现了一个基于MIMO-OFDM技术的高速水声通信系统,并着重讨论了系统同步的实现方法。湖上实验证明了方案的有效性。
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| 关 键 词： | OFDM MIMO 水声通信 同步 |
High-Speed Underwater Acoustic Communication Technique Based on MIMO-OFDM |
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| DENG Hong-chao,GONG Yu-zhen,CAI Hui-zhi. High-Speed Underwater Acoustic Communication Technique Based on MIMO-OFDM[J]. Communications Technology, 2009, 42(11): 37-39 |
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| Authors: | DENG Hong-chao GONG Yu-zhen CAI Hui-zhi |
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| Affiliation: | DENG Hong-chao, GONG Yu-zhen, CAI Hui-zhi (Institute of Acoustics, Chinese Academy of Science, Beijing 100190, China graduate School, Chinese Academy of Science, Beijing 100039, China) |
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| Abstract: | Orthogonal Frequency Division Multiplexing （OFDM） is extremely robust to multi-path propagation in the Underwater Acoustic （UWA） channel and could achieve high spectrum efficiency, and Space time coding could resist channel fading and achieve spatial diversity. Based on analysis of the principles of Multiple Input Multiple Output （MIMO） and OFDM synchronization, a novel high speed UWA communication system based on the MIMO-OFDM technique is proposed. The synchronization scheme for this system is discussed. Underwater experiments have proved the feasibility of this communication system. |
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| Keywords: | OFDM MIMO |
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