| 水声系统单载波频域均衡方法比较 |
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| 引用本文： | 郭瑜晖,孙海信,程恩,袁飞,蒯小燕.水声系统单载波频域均衡方法比较[J].厦门大学学报(自然科学版),2012,51(5):849-853. |
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| 作者姓名： | 郭瑜晖 孙海信 程恩 袁飞 蒯小燕 |
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| 作者单位： | 厦门大学信息科学与技术学院,水声通信与海洋信息技术教育部重点实验室,福建厦门361005 |
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| 摘 要： | 最近研究表明,对于水声通信而言,单载波频域均衡(SC-FDE)是一项非常引人注目的技术.因为它没有正交频分复用技术(OFDM)系统中存在的缺点,比如高峰均比和对载波频率偏移敏感等.在水声单载波系统中比较了4种频域均衡算法,仿真和水池实验结果表明:时频混合域判决反馈(H-DFE)和频域块迭代判决反馈(IBDFE)均衡效果远优于线性均衡,但H-DFE的计算复杂度却远大于IBDFE.
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| 关 键 词： | 比较 单载波频域均衡 水声系统 |
The Method Comparison of SC-FDE in Underwater Acoustic System |
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| GUO Yu-hui
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SUN Hai-xin
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CHENG En
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YUAN Fei
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KUAI Xiao-yan.The Method Comparison of SC-FDE in Underwater Acoustic System[J].Journal of Xiamen University(Natural Science),2012,51(5):849-853. |
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| Authors: | GUO Yu-hui SUN Hai-xin CHENG En YUAN Fei KUAI Xiao-yan |
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| Institution: | (Key Laboratory of Underwater Acoustic Communication and Marine Information Technology,Ministry of Education, School of Information Science and Technology,Xiamen University,Xiamen 361005,China) |
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| Abstract: | Recent research has indicated that single carrier frequency domain equalization(SC-FDE) is an attractive technology for underwater acoustic communications.Because it does not have the drawbacks of OFDM systems such as large peak-to-average ratio and the sensitivity to carrier frequency offsets.In this paper,four kinds of frequency domain equalization schemes were compared in the underwater acoustic SC communication system.Simulation and experiment results showed that H-DFE and IB-DFE had a much better performance of BER than linear equalization.However,the computational complexity of H-DFE is much more complex than IB-DFE. |
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| Keywords: | comparison SC-FDE underwater acoustic system |
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