Effects of a Fluctuating Temperature Field on the Spatial Coherence of Acoustic Signals.
NAVAL RESEARCH LAB WASHINGTON D C
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A Theoretical model has been developed for predicting the loss of spatial coherence of moderately low frequency acoustic signals 50 to 300 Hz that results from the presence of a fluctuating temperature field caused by internal waves and by ocean turbulence. The model has been used to estimate limitations on the maximum useful length of a horizontal, linear, phased array the performance of which is degraded by the presence of the fluctuating temperature field.
- Acoustic Detection and Detectors