default Experimental determination of seabed scattering law and environmental parameters from reverberation

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Experimental determination of seabed scattering law and environmental parameters from reverberation. SR-403. February 2005.

Simple theory shows that one can extract the scattering law angle dependence from ratio of reverberation to one-way propagation intensity measured on a vertical array (VLA). An experiment was carried out during BOUNDARY2003 and repeated during BOUNDARY2004 using an FM sweep as sound source first to measure vertical angle-dependent monostatic reverberation then to measure angle-dependent propagation loss as the ship mounted source moved away from the VLA. Both scattering and reflection properties are deduced in several ways without the need for modelling.