Acoustic propagation considerations for underwater acoustic communications network development

Authors:
James Preisig
Affiliations:
Woods Hole Oceanographic Institution, Woods Hole, MA
Venue:
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
Year:
2006

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Abstract

Underwater acoustic communications systems are significantly challenged by the acoustic propagation characteristics of the underwater environment. There are a wide range of physical processes that impact underwater acoustic communications and the relative importance of these processes are different in different environments. In this paper some relevant propagation phenomena are described in the context of how they impact the development and/or performance of underwater acoustic communications networks. The speed of sound and channel latency, absorption and spreading losses, waveguide effects and multipath, surface scattering, bubbles, and ambient noise are all briefly discussed.