Accession Number:

ADA011123

Title:

Effects of a Fluctuating Temperature Field on the Spatial Coherence of Acoustic Signals.

Descriptive Note:

Interim rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1975-05-22

Pagination or Media Count:

49.0

Abstract:

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.

Subject Categories:

  • Acoustic Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE