| MFSK水声远程通信技术及试验研究 |
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| 引用本文： | 韦周芳,黄建国. MFSK水声远程通信技术及试验研究[J]. 信息安全与通信保密, 2006, 0(9): 80-82 |
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| 作者姓名： | 韦周芳 黄建国 |
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| 作者单位： | 西北工业大学航海学院,西安,710072 |
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| 基金项目： | 正交多载波复合调制高速远程水声通信新方法研究，基金编号:60572098 |
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| 摘 要： | 海洋水声信道是多途、时变和频散的信道。论文针对浅海远程80～100km,设计出基于MFSK高数据率水声远程信息传输最佳系统。本系统经湖试验证表明:该技术在远程通信恶劣条件下具有较强抗多径干扰和信道衰落能力,对同步精度要求低,可实现80～100km,40bit/s,10-4量级通信精度的信息可靠传输,性能稳健,易于工程实现。
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| 关 键 词： | 水声远程通信 多进制频移键控 多径抑制 信道衰落 |
| 修稿时间： | 2005-12-01 |
MFSK Long-Range Underwater Acoustic Communication Technique and Lake Experiment Study |
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| Wei Zhoufang,Huang Jianguo. MFSK Long-Range Underwater Acoustic Communication Technique and Lake Experiment Study[J]. China Information Security, 2006, 0(9): 80-82 |
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| Authors: | Wei Zhoufang Huang Jianguo |
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| Abstract: | Ocean underwater channel is a stochastic acoustic propagation channel with its multipaths, time variety, and frequency spread. This paper presents an optimal long-range UWA communication system based on the multi-frequency shift keying (MFSK) modulation, aiming at high-rated and reliable long range communication in shallow water. The experiments results in a lake show that the technique is effective in combating severe multipath and channel fading, and has no exigent precision of channel synchronization. The system data rate can reach 40 bit/s up to the range of 80~100km with a bit error rate of below 10-4. Consequently, the MFSK long-range UWA communication system is effective, reliable and robust. And it is easy to be carried out in project. |
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| Keywords: | long-range underwater acoustic communications multi-frequency shift keying multipaths restraint channel fading |
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