Program in Marine Physics Applied to Navy Undersea Missions

The SIO Marine Physical Lab. (MPL) Horizontal and (Vertical) Digital Acoustic Array was completed. This array can be deployed with a maximum length of 1.5 km. It operates in the 10-200 Hz range. The array was deployed in January 1977 from ORB. Element navigation was tested in March 1987 and an engin...

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Bibliographic Details
Main Author: Watson, Kenneth M.
Other Authors: SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
Format: Text
Language:English
Published: 1988
Subjects:
Acoustic Detection and Detectors
Acoustics
*DOPPLER SONAR
*ACOUSTIC SIGNALS
*ACOUSTIC ARRAYS
*AMBIENT NOISE
DEPLOYMENT
COHERENCE
HIGH RESOLUTION
FLOATS
NAVIGATION
LENGTH
MISSIONS
NAVAL OPERATIONS
FLOW NOISE
OCEANS
CONTAMINATION
INCOHERENT SCATTERING
MARINE ENGINEERING
ACOUSTIC DATA
UNDERWATER
MARINE GEOPHYSICS
SOUND GENERATORS
DIGITAL SYSTEMS
DATA PROCESSING
STRUMMING
SHEAR PROPERTIES
VELOCITY
SWALLOW FLOATS
ACOUSTIC ARRAYS
HIGH RESOLUTION SONAR
Arctic
Arctic Ocean
Online Access:http://www.dtic.mil/docs/citations/ADA206586
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA206586
Description
Summary:The SIO Marine Physical Lab. (MPL) Horizontal and (Vertical) Digital Acoustic Array was completed. This array can be deployed with a maximum length of 1.5 km. It operates in the 10-200 Hz range. The array was deployed in January 1977 from ORB. Element navigation was tested in March 1987 and an engineering deployment was made from FLIP in June 1987. This array was again deployed from FLIP in September 1989 as part of the SVLA experiment. Ambient noise and signals from acoustic sources were recorded. Data analysis from this experiment is continuing. The MPL Swallow Float Acoustic Array was deployed in September 1987 as a part of the SVLA experiment. The data from this deployment is being used to determine flow and strum contamination in the SVLA array. A high resolution Doppler velocity sensing sonar was developed. This sonar will operate in either a coherent mode (1 km range resolution 50 m range) or in an incoherent mode with 400 m range). The sonar has provided data describing small-scale velocity shears in the upper ocean. It is scheduled to be deployed in the 1989 CEAREX experiment in the Arctic Ocean.

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