Inversion for Geometric and Geoacoustic Parameters in Shallow Water: Experimental Results

Experimental results on the estimation of both geometric and geoacoustic parameters in shallow water are presented. Generic algorithms are used for estimation of the forward model parameters, the estimated parameters are then used by a standard Bartlett processor for source localization. A stationar...

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Bibliographic Details
Main Authors: Gingras, D F, Gerstoft, P
Format: Report
Language:English
Subjects:
ACOUSTIC ARRAYS
ACOUSTIC DATA
ACOUSTIC DETECTION
Acoustic Detection and Detectors
ACOUSTIC FIELDS
ALGORITHMS
BATHYMETRY
DEPTH
ESTIMATES
EXPERIMENTAL DATA
FORWARD AREAS
GEOACOUSTICS
GEOMETRY
GLOBAL
MATHEMATICAL MODELS
NATO
NATO FURNISHED
PARAMETERS
PASSIVE SONAR
SHALLOW WATER
SOUND RANGING
TARGET DETECTION
TARGET POSITION INDICATORS
UNDERWATER ACOUSTICS
UNDERWATER SOUND SIGNALS
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Description
Summary:Experimental results on the estimation of both geometric and geoacoustic parameters in shallow water are presented. Generic algorithms are used for estimation of the forward model parameters, the estimated parameters are then used by a standard Bartlett processor for source localization. A stationary source at a range of 5.6 km and a moving source at ranges from 5.8 to 7.7 km were successfully localized in range and depth using a single frequency Bartlett processor. It is demonstrated that global estimation of the forward model parameters significantly improved source localization performance. (AN)