frame with acoustic sources for marine research

摘要

it is a system and a method of maritime research for mapping ultra-high resolution (uhr) of a seabed (b) below a body of water (w) by means of a frame (20) towed as a all by one or more towing cables (12) at a distance (xf) behind a marine vessel (10) that moves on water (w) in a direction of movement (v). the frame (20) comprises a rigid structure (23) and a plurality of independent acoustic sources (21), in which each acoustic source (21) is independently controlled to emit a separate acoustic wave (a) that propagates through the water (w) and reflecting the lower regions of the seabed (b) for its mapping. the acoustic sources (21) are kept fixed by the rigid structure (23) at a distance from source to source (ys) less than four meters in a transverse direction (y) perpendicular to the direction of movement (v) of the vessel (10) to distinguish the lower regions with an ultra-high resolution (ry) of less than two meters, at least in the transverse direction (y).