Measurements of high-frequency shallow-water acoustic phase fluctuations

A shallow-water high-frequency (HF) acoustic propagation experiment was conducted just off shore in Panama City, FL. Several broad-band high-resolution sources and receivers were mounted on stable platforms and deployed in water depths of 8-10 m. Signals covering the frequency range from 20 to 200 k...

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Bibliographic Details
Published in:IEEE journal of oceanic engineering 2000-10, Vol.25 (4), p.507-515
Main Authors: Stanic, S.J., Goodman, R.R., Meredith, R.W., Kennedy, E.
Format: Article
Language:English
Subjects:
Acoustic measurements
Acoustic propagation
Acoustics
Analysis of variance
Cities and towns
Data analysis
Exact sciences and technology
Fluctuation
Frequency estimation
Frequency ranges
Fundamental areas of phenomenology (including applications)
Hafnium
Marine
Oceans
Phase measurement
Physics
Platforms
Receivers
Sea measurements
Shores
Underwater sound
Water depth
Water resources
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Summary:A shallow-water high-frequency (HF) acoustic propagation experiment was conducted just off shore in Panama City, FL. Several broad-band high-resolution sources and receivers were mounted on stable platforms and deployed in water depths of 8-10 m. Signals covering the frequency range from 20 to 200 kHz were transmitted from the sources to two spatially separated receivers. The data were analyzed to provide estimates of the signal phase variances as a function of frequency and source-to-receiver range. These phase variabilities are correlated with small-scale water column thermal variabilities and ocean swell conditions.
ISSN:0364-9059
1558-1691
DOI:10.1109/48.895358