Low-Frequency Surface Backscattering Strengths Measured in the Critical Sea Test Experiments

Surface scattering strength (SSS) is one of key acoustic inputs to reverberation and active sonar models. This report presents significantly-updated results from 55 broadband SUS SSS measurements in 6 Critical Sea Test (CST) experiments. Since the time of the previously-published results of Ogden an...

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Bibliographic Details
Main Authors: Gauss,Roger C, Fialkowski,Joseph M
Format: Report
Language:English
Subjects:
Acoustic Detection and Detectors
acoustic measurement
acoustic scattering
Acoustics
active sonar
backscattering
broadband
calibration
critical sea test
data processing
frequency bands
low frequency
reverberation
scattering
signals underwater sound
Surface scattering
Surface scattering strength
underwater acoustics
volume scattering strength
WIND VELOCITY
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Summary:Surface scattering strength (SSS) is one of key acoustic inputs to reverberation and active sonar models. This report presents significantly-updated results from 55 broadband SUS SSS measurements in 6 Critical Sea Test (CST) experiments. Since the time of the previously-published results of Ogden and Erskine (and Nicholas et al.), there has been a : 1) major reprocessing effort that extended the grazing-angle coverage of many data sets; 2) recalibration that particularly impacts the lowest frequency band results; 3) significant revision of all the CST wind-speed values; and 4) systematic removal of fish-scattering contributions. This reports documents the updated results, and archives the bistatic SSS data.