DocumentCode :
1047242
Title :
Application of beam forming techniques to measurements of acoustic scattering from the ocean bottom
Author :
Berkson, Jonathan M. ; Kloosterman, Hendrik J. ; Akal, Tuncay ; Berrou, Jean-Louis
Author_Institution :
Saclant ASW Research Centre, La Spezia, Italy
Volume :
10
Issue :
3
fYear :
1985
fDate :
7/1/1985 12:00:00 AM
Firstpage :
299
Lastpage :
302
Abstract :
Signals from an explosive source backscattered from the seafloor and received at long range by hydrophones of a towed array are processed to estimate the directional distribution of energy for a given time increment. As assembly of these data shows the time and amplitude of scattering features, and after conversion to distance, the geographic location of the return. A frequency-domain beam-forming procedure is used in which beam levels are averaged over a given band of a broad-band source. The processing is applied to experimental data obtained in the southern Tyrrhenian Sea. The major backscattering occurred at the Baconi Seamounts and the coastal margin of Sardinia.
Keywords :
Array processing; Sea floor; Sonar signal processing; Acoustic beams; Acoustic measurements; Acoustic scattering; Assembly; Explosives; Oceans; Sea floor; Sea measurements; Signal processing; Sonar equipment;
fLanguage :
English
Journal_Title :
Oceanic Engineering, IEEE Journal of
Publisher :
ieee
ISSN :
0364-9059
Type :
jour
DOI :
10.1109/JOE.1985.1145103
Filename :
1145103
Link To Document :
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