Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound Channel
Deep-sea acoustic communication has attracted widespread attention in recent years. Research on deep-sea acoustic communication channel characteristics is essential for the development and system design of deep-sea acoustic communication technologies. However, the structural and spatiotemporal chara...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/22/4562 |
| _version_ | 1797459524174479360 |
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| author | Yunfei Li Ning Jia Jianchun Huang Ruigang Han Zhongyuan Guo Shengming Guo |
| author_facet | Yunfei Li Ning Jia Jianchun Huang Ruigang Han Zhongyuan Guo Shengming Guo |
| author_sort | Yunfei Li |
| collection | DOAJ |
| description | Deep-sea acoustic communication has attracted widespread attention in recent years. Research on deep-sea acoustic communication channel characteristics is essential for the development and system design of deep-sea acoustic communication technologies. However, the structural and spatiotemporal characteristics of deep-sea high-frequency acoustic communication channels (unlike those of shallow-water acoustic communication channels) are poorly understood. Based on a channel measurement experiment in a typical deep-sea incomplete sound channel environment in the South China Sea, this paper analyzes the structural and spatiotemporal characteristics of high-frequency underwater acoustic channels in the direct-arrival and shadow zones. The channel multipath vertical structure, amplitudes of different path clusters, root mean square (RMS) delay spread, and channel temporal coherence are investigated at different depths. The randomness of different path clusters is quantified as the coefficient of variation. The channels in the shadow zone are characterized by a complex multi-path structure, high RMS delay spread, and low temporal coherence. On the contrary, the channels of the direct-arrival zone show multi-path convergence, low RMS delay spread, and high temporal coherence. Understanding the dynamic changes in these parameters can guide the statistical modeling of channels and the design of communication algorithms in different zones in deep-sea high-frequency acoustic communication scenarios. |
| first_indexed | 2024-03-09T16:52:36Z |
| format | Article |
| id | doaj.art-3906dd27609b47eab4163b9d2b8cb136 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T16:52:36Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-3906dd27609b47eab4163b9d2b8cb1362023-11-24T14:38:59ZengMDPI AGElectronics2079-92922023-11-011222456210.3390/electronics12224562Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound ChannelYunfei Li0Ning Jia1Jianchun Huang2Ruigang Han3Zhongyuan Guo4Shengming Guo5Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaDeep-sea acoustic communication has attracted widespread attention in recent years. Research on deep-sea acoustic communication channel characteristics is essential for the development and system design of deep-sea acoustic communication technologies. However, the structural and spatiotemporal characteristics of deep-sea high-frequency acoustic communication channels (unlike those of shallow-water acoustic communication channels) are poorly understood. Based on a channel measurement experiment in a typical deep-sea incomplete sound channel environment in the South China Sea, this paper analyzes the structural and spatiotemporal characteristics of high-frequency underwater acoustic channels in the direct-arrival and shadow zones. The channel multipath vertical structure, amplitudes of different path clusters, root mean square (RMS) delay spread, and channel temporal coherence are investigated at different depths. The randomness of different path clusters is quantified as the coefficient of variation. The channels in the shadow zone are characterized by a complex multi-path structure, high RMS delay spread, and low temporal coherence. On the contrary, the channels of the direct-arrival zone show multi-path convergence, low RMS delay spread, and high temporal coherence. Understanding the dynamic changes in these parameters can guide the statistical modeling of channels and the design of communication algorithms in different zones in deep-sea high-frequency acoustic communication scenarios.https://www.mdpi.com/2079-9292/12/22/4562deep-sea high-frequency acoustic communicationchannel multipath structurecoefficient of variationRMS delay spreadchannel temporal coherence |
| spellingShingle | Yunfei Li Ning Jia Jianchun Huang Ruigang Han Zhongyuan Guo Shengming Guo Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound Channel Electronics deep-sea high-frequency acoustic communication channel multipath structure coefficient of variation RMS delay spread channel temporal coherence |
| title | Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound Channel |
| title_full | Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound Channel |
| title_fullStr | Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound Channel |
| title_full_unstemmed | Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound Channel |
| title_short | Analysis of High-Frequency Communication Channel Characteristics in a Typical Deep-Sea Incomplete Sound Channel |
| title_sort | analysis of high frequency communication channel characteristics in a typical deep sea incomplete sound channel |
| topic | deep-sea high-frequency acoustic communication channel multipath structure coefficient of variation RMS delay spread channel temporal coherence |
| url | https://www.mdpi.com/2079-9292/12/22/4562 |
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