| 周德富,刘云涛,蔡惠智.STBC-OFDM技术在水声通信中的试验研究[J].声学技术,2012,(5):466~470 |
| STBC-OFDM技术在水声通信中的试验研究 |
| Experimental study of STBC-OFDM technique in underwater acoustic communication |
| 投稿时间：2011-09-04 修订日期：2011-12-27 |
| DOI：10.3969/j.issn1000-3630.2012.05.004 |
| 中文关键词: 空时分组编码 正交频分复用 水声通信 多输入多输出 |
| 英文关键词: Space Time Block Coding Orthogonal Frequency Division Multiplexing underwater acoustic communication multiple input multiple output |
| 基金项目:“十一五”国防预研基金(1010704020501) |
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| 中文摘要: |
| 空时分组编码(Space Time Block Coding, STBC)技术能够获得满发射分集增益并且译码简单,而正交频分复用(Orthogonal Frequency Division Multiplexing, OFDM)技术可对抗水声信道中的多径干扰和实现较高的频谱利用率.设计了将空时分组编码与正交频分复用相结合(STBC-OFDM)的高速水声通信系统方案,并进行了湖上试验研究.湖试中,在1200m距离下,带宽为4.32kHz时有效传输速率为3.328kbps,误比特率低于10-5.湖试结果表明,STBC-OFDM技术在高速水声通信中的应用潜力. |
| 英文摘要: |
| Space Time Block Coding (STBC) technique could achieve transmitting diversity gain and be decoded easily, and Orthogonal Frequency Division Multiplexing (OFDM) is robust to multi-path effect in the underwater acoustic (UWA) channel and could reach higher spectrum efficiency. A novel high speed UWA communication system based on STBC-OFDM technique is proposed. It was tested in a lake. A bit rate of 3.328kbps over a bandwidth of 4.32kHz was approached within 1200m with the bit error rate (BER) lower than 10-5 in the lake. These results suggest that STBC-OFDM technique is an appealing solution for high data rate underwater acoustic communications. |
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