Underwater mapping apparatus and method

Details Underwater mapping apparatus and method Underwater mapping apparatus and method

G - Physics

01

S

349/25

G01S 15/89 (2006.01)

Patent

CA 1133624

ABSTRACT OF THE DISCLOSURE A method and apparatus for producing a linear plan view display of a seabed, employing a side scan sonar signal system, have circuitry for repeatedly determining the height of the transmitting source relative to the seabed, circuitry for sampling the returning sonar signals, and circuitry for providing from the height determination and the sampled signals, the slant range correction needed to provide a linear output display, at least in a direction normal to the direction of movement of the transmitting source. The preferred method and apparatus also have elements for determining the velocity of the transmitting source and for effecting a one-to-one aspect ratio linear plan view of the seabed topography. In other aspects of the invention, a method and apparatus for controlling the display and for implementing the mapping transformation are described.

324230

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