Underwater Ambient Noise. Proceedings of a Conference Held at SACLANTCEN on 11-14 May 1982. Volume 2. Unclassified Papers. Part 1

Contents: BACKGROUND--Role of propagation in ambient noise; MECHANISMS--Acoustic source characteristics of merchant ships; Flow-noise interference in measurements of infrasonic ambient noise; LOW-FREQUENCY PHENOMENA--Low-frequency seismic and hydroacoustic noise measurements in a fjord; Seismic and...

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Bibliographic Details
Main Authors: Wagstaff, Ronald A, Bluy, Orest Z
Other Authors: SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)
Format: Text
Language:English
Published: 1982
Subjects:
Undersea and Antisubmarine Warfare
Acoustic Detection and Detectors
*ACOUSTIC DATA
*AMBIENT NOISE
*TOWED ARRAYS
ACOUSTIC DETECTION
ACOUSTIC WAVES
ANTISUBMARINE WARFARE
BARENTS SEA
ESTIMATES
INFORMATION PROCESSING
INTERFERENCE
LOW FREQUENCY
MEASUREMENT
NATO
NOISE(SOUND)
NORTH PACIFIC OCEAN
PROPAGATION
SHIP NOISE
SYMPOSIA
TARGETS
UNDERWATER SOUND
WAVE PROPAGATION
FOREIGN REPORTS
Arctic
Barents Sea
Pacific
Online Access:http://www.dtic.mil/docs/citations/ADA125323
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA125323
Description
Summary:Contents: BACKGROUND--Role of propagation in ambient noise; MECHANISMS--Acoustic source characteristics of merchant ships; Flow-noise interference in measurements of infrasonic ambient noise; LOW-FREQUENCY PHENOMENA--Low-frequency seismic and hydroacoustic noise measurements in a fjord; Seismic and hydroacoustic sensing of infrasonic noise in coastal waters; MEASUREMENTS AND MEASUREMENT TECHNIQUES--Le programme Ulysse; Arctic ambient noise statistical measurement results and their implications to sonar performance improvements; Acoustic ambient noise in the Barents Sea; Depth dependence of directionality of ambient noise in the North Pacific: experimental data and equipment design; Ambient noise levels in the northeast Pacific ocean as measured by aircraft-dropped sonobuoys; PROCESSING TECHNIQUES--A real-time system for towed-array calibration and performance analysis, or how to get 50 dB sidelobes from a towed array; Notes on the interpretation of ambient noise statistics. See also Volume 2, Part 2, ADA125324 and Volume 1, ADC028982.

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