| 摘要: |
| 水声信道估计是水声通信的关键技术，其估计性能直接影响通信系统的可靠性和传输速率。介绍了水声通信技术发展的不同阶段、水声信道相关特性以及其对水声通信系统的影响，对现有的水声信道估计技术进行分类，讨论了各自的优势与不足，最后分析了水声信道估计技术面临的问题并提出了解决思路。 |
| 关键词: 水声通信 信道估计 压缩感知 动态压缩感知 自适应滤波 贝叶斯推断 |
| DOI：10.20079/j.issn.1001-893x.240823003 |
|
| 基金项目:国家自然科学基金资助项目（U20B2039） |
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| Advances in Channel Estimation for Underwater Acoustic Communications |
| LIU Jinrong,LENG Xiangwen,JI Qing,WANG Zhilin,HU Yunfeng |
| (1.China Academic of Electronics and Information Technology,Beijing 100041,China;2.Department of Underwater Weaponry and Chemical Defense，Dalian Naval Academy，Dalian 116013,China;3.School of Weaponry Engineering,Naval University of Engineering,Wuhan 430033,China;4.Unit 92941 of PLA,Huludao 125001,China;5.Key Laboratory of Underwater Acoustic Signal Processing of the Ministry of Education,Southeast University,Nanjing 210096,China) |
| Abstract: |
| Underwater acoustic(UWA) channel estimation is a key technology for UWA communications,as its performance directly affects the reliability and transmission rate of the communication system.The authors introduce the development of UWA communication technology,the characteristics of UWA channels and their influence on the UWA communication system,classify existing estimation methods，discuss their advantages and disadvantages,and finally analyze open problems and propose potential research directions. |
| Key words: underwater acoustic communication channel estimation compressed sensing dynamic compressed sensing adaptive filtering Bayesian inference |
