Application of beam-forming techniques to measurements of acoustic scattering from the ocean
Signals from an explosive source backscattered from the seafloor and received at long range byhydrophones of a towed array are processed to estimate the directional distribution of energy for agiven time increment. An 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 beamformingprocedure is used in which beam levels are averaged over a given band of a broad-bandsource. The processing is applied to experimental data obtained in the southern Tyrrhenian Sea. Themajor backscattering occurred at the Baconi Seamounts and the coastal margin of Sardinia.
SourceIn: IEEE Journal of Oceanic Engineering, Vol. OE-10, 3, July 1985.
Berkson, Jonathan M.;
Kloosterman, Hendrik J.;