Title :
A scatterer map for the Malta plateau
Author_Institution :
NATO Undersea Res. Centre, La Spezia
Abstract :
A method is described by which reverberation data gathered on a cardioid array can be processed to produce a ´scatterer map´ of an area. Such a map shows the locations of strong seabed scatterers and gives a qualitative estimate of their strength. The method cannot give absolute values for scattering strength but its output is nonetheless useful in describing the locations of strong scatterers in an area. Low-Frequency Active Sonar (LFAS) data gathered on the Malta Plateau are presented and the physical causes of observed strong scatterers are described, along with an assessment of the degree of certainty to which these causes are known
Keywords :
acoustic measurement; oceanographic techniques; reverberation; sonar; underwater acoustic propagation; Malta plateau; acoustic scattering; cardioid array; low-frequency active sonar data; reverberation data; scatterer map; scattering strength; strong seabed scatterers; underwater acoustic measurements; Acoustic measurements; Acoustic scattering; Acoustic sensors; Cardiology; Impedance; Reverberation; Sensor arrays; Sonar measurements; Time measurement; Underwater acoustics; Acoustic scattering; underwater acoustic measurements; underwater acoustics;
Journal_Title :
Oceanic Engineering, IEEE Journal of
DOI :
10.1109/JOE.2005.862129
