Sonar Signal-Gain Limits from Internal Waves

This report will present the state of knowledge of internal-wave effects from the point of view of low-frequency sonar systems, and will make recommendations to the sonar-system designer and operator as to when to expect internal-wave effects to become important. It will also explain where oceanogra...

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Bibliographic Details
Main Author: Flatte, Stanley M.
Other Authors: MITRE CORP MCLEAN VA JASON PROGRAM OFFICE
Format: Text
Language:English
Published: 1998
Subjects:
Acoustic Detection and Detectors
*SONAR SIGNALS
ACOUSTIC MEASUREMENT
UNDERWATER ACOUSTICS
ACOUSTIC VELOCITY
NORTH ATLANTIC OCEAN
WATER MASSES
LOW FREQUENCY
NORTH PACIFIC OCEAN
INTERNAL WAVES
BUOYANCY
Munk
Pacific
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA357527
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA357527
Description
Summary:This report will present the state of knowledge of internal-wave effects from the point of view of low-frequency sonar systems, and will make recommendations to the sonar-system designer and operator as to when to expect internal-wave effects to become important. It will also explain where oceanographic measurement and analysis are needed to determine the limits on sonar-system design and performance that are due to internal waves. The calculations in this report are based on the universal Garrett-Munk spectrum, with differences in different parts of the ocean arising from the behavior of different water masses.

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