| 基于预均衡的被动时间反转水声通信 |
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| 引用本文： | 宫改云,姚文斌.基于预均衡的被动时间反转水声通信[J].杭州电子科技大学学报,2011,31(1):66-69. |
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| 作者姓名： | 宫改云 姚文斌 |
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| 作者单位： | 1. 杭州电子科技大学应用数学与工程计算研究所,浙江杭州,310018
2. 浙江经济职业技术学院,浙江杭州,310018 |
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| 摘 要： | 在相位相干的水下通信中,复杂的信道环境使经常规被动时间反转处理后的信号仍存在残余的码间干扰,为此,该文研究了将信道预均衡器和被动时间反转相结合来克服残余码间干扰,提高通信可靠性的接收端处理方法.实验结果不仅表明了基于预均衡的被动时间反转在水下通信中所具有的可靠性,而且证实了其较常规被动时间反转的性能增强.
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| 关 键 词： | 被动时反 码间干扰 预均衡 性能增强 |
Passive Time Reversal Underwater Acoustic Communication Based on Pre-equalization |
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| GONG Gai-yun,YAO Wen-bin.Passive Time Reversal Underwater Acoustic Communication Based on Pre-equalization[J].Journal of Hangzhou Dianzi University,2011,31(1):66-69. |
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| Authors: | GONG Gai-yun YAO Wen-bin |
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| Affiliation: | GONG Gai-yun1,YAO Wen-bin2(1.Institute of Applied Mathematics and Engineering Calculation,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China,2.Logistic Technology School,Zhejiang Technology Institute of Economy,China) |
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| Abstract: | As passive time reversal without any other equalizer is used in phase coherent underwater communication,there always is some residual intersymbol interference(ISI) depending on the complexity of the channel.Therefore a method to reduce the residual ISI is studied by combining channel pre-equalization with passive time reversal.The experimental results show that passive time-reversal based on this pre-equalizer is not only reliable but also performance enhancement compared to conventional passive time-revers... |
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| Keywords: | passive time reversal intersymbol interference pre-equalization performance enhancement |
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