Patent ID: 11960044
Assignee: KRAKEN ROBOTICS SERVICES LTD.
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 14:
15. The method of claim 14 further comprising:
(c) detecting acoustic energy reflected from the formations at a plurality of positions using at least two substantially orthogonal line arrays of receivers disposed on the water bottom;
(d) beam steering the detected acoustic energy, as defined in (c), to each of a plurality of depths and positions to generate an image for each such depth and position, to enhance forward scatter of the sub-bottom;
(e) detecting acoustic energy reflected from the formations at a position proximate the position of imparting acoustic energy;
(f) beam steering the detected acoustic energy, as defined in (e), to each of a plurality of depths and positions to generate an image for each such depth and position, to enhance backscatter of the sub-bottom;
(g) detecting reflected acoustic energy at each time when the position of imparting acoustic energy is coincident with a position of each receiver in the orthogonal arrays;
(h) processing the data, as defined in (g), by enhancement of specular reflections to obtain a velocity model of the sub-bottom;
(i) generating a model of acoustic velocity distribution using the detected acoustic energy from each of (c) through (h); and
(j) using the acoustic velocity distribution model to correct the images generated from the beam steered, coherently stacked detected acoustic energy.