Title :
Measurements of high-frequency shallow-water acoustic phase fluctuations
Author :
Stanic, Stephen J. ; Goodman, Ralph R. ; Meredith, Roger W. ; Kennedy, Edgar
Author_Institution :
Naval Res. Lab., Stennis Space Center, MS, USA
Abstract :
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.
Keywords :
acoustic applications; fluctuations; oceanographic techniques; sonar signal processing; synthetic aperture sonar; 20 to 200 kHz; 8 to 10 m; 8-10 m; Florida; Panama City; acoustic propagation experiment; broad-band high-resolution sources; high-frequency acoustic phase fluctuations; ocean swell conditions; off shore; phase variabilities; receivers; shallow water; signal fluctuations; signal phase variances; small-scale water column; source-to-receiver range; stable platforms; thermal variabilities; Acoustic measurements; Acoustic propagation; Analysis of variance; Cities and towns; Data analysis; Frequency estimation; Hafnium; Phase measurement; Sea measurements; Water resources;
Journal_Title :
Oceanic Engineering, IEEE Journal of
