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

• Main Authors: Bendig, Horst, Van Asselt, Hendrik, Bienvenu, Georges, Nuttall, Albert H., Wagstaff, R. A., Fraser, I. A., Bond, James W., Groen, Mattheus, Wilson, James H., Wolf, S. N.
• Other Authors: SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)
• Format: Text
• Language: English
• Published: 1982
• Subjects: Undersea and Antisubmarine Warfare; Acoustic Detection and Detectors; *SYMPOSIA; *TOWED ARRAYS; *AMBIENT NOISE; *ACOUSTIC DATA; NATO; PROPAGATION; MEASUREMENT; SHIP NOISE; ACOUSTIC WAVES; ACOUSTIC DETECTION; TARGETS; ESTIMATES; WAVE PROPAGATION; INTERFERENCE; BARENTS SEA; LOW FREQUENCY; ANTISUBMARINE WARFARE; UNDERWATER SOUND; NORTH PACIFIC OCEAN; INFORMATION PROCESSING; NOISE(SOUND); NATO FURNISHED; FOREIGN REPORTS; Barents Sea; Pacific
• Online Access: http://www.dtic.mil/docs/citations/ADA125324; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA125324

Contents: PROCESSING TECHNIQUES--A method of estimating the influence of ship's noise on ambient noise measurements; Optimal detection and tracking of acoustical noise sources in a time-varying environment; Influence of background- noise spatial coherence on high-resolution passive method; Performance of three averaging methods for various distributions; Is power averaging the best estimator for undersea acoustic data? MODELLING: DEVELOPMENT AND USE--A parametric examination of some properties of the low-frequency ambient-noise field; Detection models and target-information processing; The prediction of temporal statistics of directional ambient shipping noise; Site and frequency dependence of ambient noise in the north eastern Pacific Ocean; ACOUSTIC PROPAGATION EFFECTS--Site dependence of wind-dominated ambient noise in shallow water; Effects of topographic blockage and ocean boundaries on low-frequency noise fields; The seamount as a noise barrier. See also Volume 2, Part 1, ADA125323 and Volume 1, ADC028982.