Accession Number:

AD0527037

Title:

Ambient Noise and Signal-to-Noise Profiles in IOMEDEX

Descriptive Note:

Final rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1973-06-01

Pagination or Media Count:

55.0

Abstract:

Ambient noise vertical profiles in the Ionian Sea show temporal fluctuations in a few minutes at low, shipping-related frequencies to a few hours at higher, windsea-related frequencies. In the mean, ambient noise levels decrease with increasing depth over the frequency band of study 20-300 Hz. Signal-to-noise profiles also show a fluctuation, depending on the range from source to receiver. These characteristics of deep-water ambient noise are discussed. The results and discussion bear directly on future sonar systems as to optional placement of sensors throughout the water column.

Subject Categories:

  • Acoustic Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE