Passive localization in ocean acoustics: A model-based approach

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · Journal of the Acoustical Society of America

DOI:https://doi.org/10.1121/1.413412· OSTI ID:115795

Candy, J V ^[1]; Sullivan, E J ^[2]

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1. Lawrence Livermore National Laboratory, P.O. Box 808, L-495, Livermore, California 94550 (United States)
2. Naval Undersea Warfare Center, NUWC Code 82101, Bldg 679, Newport, Rhode Island 02841 (United States)

A model-based approach is developed to solve the passive localization problem in ocean acoustics using the state-space formulation for the first time. It is shown that the inherent structure of the resulting processor consists of a parameter estimator coupled to a nonlinear optimization scheme. The parameter estimator is designed using the model-based approach in which an ocean acoustic propagation model is used in developing the model-based processor required for localization. Recall that model-based signal processing is a well-defined methodology enabling the inclusion of environmental (propagation) models, measurement (sensor arrays) models, and noise (shipping, measurement) models into a sophisticated processing algorithm. Here the parameter estimator is designed, or more appropriately the model-based identifier (MBID) for a propagation model developed from a shallow water ocean experiment. After simulation, it is then applied to a set of experimental data demonstrating the applicability of this approach. {copyright} {ital 1995} {ital Acoustical} {ital Society} {ital of} {ital America}.

• Sponsoring Organization: USDOE
• OSTI ID: 115795
• Journal Information: Journal of the Acoustical Society of America, Journal Name: Journal of the Acoustical Society of America Journal Issue: 3 Vol. 98; ISSN 0001-4966; ISSN JASMAN
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ACOUSTIC DETECTION
ACOUSTIC TESTING
ALGORITHMS
OCEANOGRAPHY
SIMULATION
WAVE PROPAGATION