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<p>"For acoustic frequencies of interest in the development of undersea wireless wide-area networks, wind  noise is the dominant contribution to channel noise. The large dynamic range of wind noise forces the  network designer to consider wide variations in link margin and effective node-to-node range. Previous  reported correlations of acoustic communication performance and wind speed led to multiple  hypotheses explaining degradation, including noise variability as well as wind-driven sea-surface effects  such as roughness, entrained bubbles, mixing, and stratification. This theses examines operations of a  40-node wide-area acoustic network in varying noise conditions. This data set is unique in that the  environment is strongly downward refracting. Based on theoretical models, wind noise is assumed to  dominate all other noise sources. Considerations include dependence of link margin and range on wind  speed. Although the experiment was not designed to examine the correlation between transmission  range and wind speed, a weak correlation was observed in the limited data set available." p. i.
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<br>Subjects: Engineering</div>
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Hurt, Christopher S.</div>
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