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The accuracy of any sonar performance prediction depends on the accuracy of its environmental and system-related inputs [e.g., transmission loss (TL), ambient noise , and target source level , among others]. However, particularly with the environment, perfect temporal and spatial knowledge of the input is simply unavailable, and as a result, performance prediction is often accomplished...
The “Sand Dunes” moored array in the upper slope of the northern South China Sea provided an unprecedented look at internal solitary wave (ISW) arrival patterns and transformations under shoaling as they propagate northwestward passed the sand dunes. The data sets also shown the underwater ambient noise induced by the ISW. The mode-1 depression ISW could generate the surface wave breaking in the convergence...
Information on the species diversity and habitat use of cetaceans can help us to understand the community ecology of marine top predators. Passive acoustic monitoring has been widely applied in the cetacean research in recent years since cetacean vocalizations can be effectively detected through automatic detection methods. However, species identification based on tonal sounds remains challenging...
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