Long-Lived Bubbles and Their Impact on Underwater Acoustic Communication
Long-Lived Bubbles and Their Impact on Underwater Acoustic Communication
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长寿命气泡及其对水下声学通信的影响
DOI：
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发表时间：
2021
影响因子：
4.1
通讯作者：
G. Deane
中科院分区：
文献类型：
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作者：
Gabriel Chua;M. Chitre;G. Deane
气泡对水声通信的影响主要是在强风（$>$12 m/s）的环境中研究的，并且已经发现主要影响是由于密集的气泡云引起的强衰减。在大风期间没有持续的补充，这些密集的气泡云在几分钟内迅速消散，沿着强烈的衰减。我们发现，密集的气泡云消散后，它们留下一个扩散的气泡云非常小的气泡。这种扩散的气泡云的寿命比致密的气泡云的寿命长得多。由于这些残留气泡的衰减很小，但由于它们的随机运动，它们导致通道可变性增加。此外，由于它们可以通过水流运输到遥远的地方，我们认为这些气泡在许多环境中具有更持久的影响，包括风不是很强的环境，但还有其他气泡来源（例如，航运渠道）。我们给出了通过这些气泡的传播的统计特性，并显示与实验数据的声学通信的影响。
The impact of bubbles on underwater acoustic communication has mostly been studied in environments with strong winds ($>$12 m/s), and it has been found that the main impact is the strong attenuation due to dense bubble clouds. Without continuous replenishment during high winds, these dense bubble clouds dissipate rapidly in a few minutes, along with the strong attenuation. We find that after the dense bubble clouds dissipate, they leave behind a diffused bubble cloud with very small bubbles. The lifetime of this diffused bubble cloud is much longer than that of the dense bubble cloud. The attenuation due to these residual bubbles is small, but they result in an increase in channel variability due to their random motion. Furthermore, because they can be transported by currents to distant locations, we argue that these bubbles have a more persistent impact in many environments, including ones where winds are not very strong, but there are other sources of bubbles (e.g., shipping channels). We give a statistical characterization of the propagation through these bubbles, and show the impact on acoustic communications with experimental data.
影响因子：
2.2
作者：
H. Czerski
通讯作者：
H. Czerski