| 北极冰水混合水域的水声信道预测技术 |
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| 引用本文： | 殷敬伟,吴雨珊,韩笑,李林.北极冰水混合水域的水声信道预测技术[J].信号处理,2019,35(9):1496-1504. |
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| 作者姓名： | 殷敬伟 吴雨珊 韩笑 李林 |
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| 作者单位： | 哈尔滨工程大学水声技术重点实验室 |
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| 基金项目： | 国家重点研发计划(2018YFC1405904); 国家自然科学基金(61631008,51779061); 霍英东教育基金(151007); 黑龙江省杰出青年科学基金(JC2017017)
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| 摘 要： | 为在北极冰水混合水域环境下实现可靠的自适应水声通信，本文对此环境下的水声信道预测技术进行研究，利用水声信道的稀疏性，使用时域预测器对少数主要路径进行预测，降低计算复杂度的同时消除大部分噪声影响，提高预测精度。本文利用2018年第九次北极科学考察进行的水声通信试验数据比较了基于不同预测系数获取算法的信道预测方法性能，数据处理结果表明本文方法收敛后的信道预测误差可以达到-30dB，证明可以实现水声信道的有效预测，为冰水混合环境的水声通信提供可靠信道状态信息。
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| 关 键 词： | 北极 冰水混合水域 水声通信 信道预测 稀疏性 |
| 收稿时间： | 2019-05-08 |
Underwater acoustic channel prediction in Arctic ice-water mixed waters |
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| Affiliation: | Acoustic Science and Technology Laboratory, Harbin Engineering UniversityKey Laboratory of Marine Information Acquisition and Security Harbin Engineering University, Ministry of Industry and Information TechnologyCollege of Underwater Acoustic Engineering, Harbin Engineering University |
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| Abstract: | In order to realize adaptive modulation communication in Arctic ice-water mixed waters, this paper studies underwater acoustic (UWA) channel prediction algorithms. Using the sparseness of UWA channels, channel prediction is performed in the time domain which reduces the computational complexity and improves the prediction accuracy by removing most noise effects. This paper compares the performance of channel prediction methods based on different prediction coefficient acquisition algorithms using the data from the 9th Arctic scientific expedition of China. Processing results show that the prediction steady-state error of the proposed algorithms can reach -30dB. It is proved that the effective prediction of the UWA channel can be realized, which can provide reliable channel state information in ice-water mixed communication environment. |
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