Accession Number:

ADA125323

Title:

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

Descriptive Note:

Conference proceedings

Corporate Author:

SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)

Personal Author(s):

• Wagstaff, Ronald A.
• Bluy, Orest Z.

Report Date:

1982-06-15

Pagination or Media Count:

187.0

Abstract:

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.

Descriptors:

• *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

Subject Categories:

• Undersea and Antisubmarine Warfare
• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE