Ocean depth sounding from the air by laser beam

Details Ocean depth sounding from the air by laser beam Ocean depth sounding from the air by laser beam

G - Physics

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G01S 17/00 (2006.01) G01S 7/497 (2006.01) G01S 17/87 (2006.01) G01S 17/88 (2006.01)

Patent

CA 1186395

ABSTRACT A system of ocean depth sounding from the air which consists in projecting an infrared beam down normal to the ocean surface along a forward travel path to back- scatter a signal to a receiver to measure distance to the ocean surface, and simultaneously projecting down a green beam to sweep across the direction of travel to backscatter a series of signals from the ocean bottom over an extended width to a second receiver, adjusting the receiver gain from the green signal to achieve optimum ocean bottom measurement and calculating ocean depth from the infrared and green signal differential.

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