Underwater mapping apparatus and method

Details Underwater mapping apparatus and method Underwater mapping apparatus and method

1978-04-14

1980-11-04

Tubbesing, T. H.

Communications, electrical: acoustic wave systems and devices

Echo systems

Side scanning or contour mapping sonar systems

G01S 1589

Patent

active

042323800

ABSTRACT:
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.

REFERENCES:
patent: 3484737 (1969-12-01), Walsh
patent: 3681747 (1972-08-01), Walsh
patent: 3742436 (1973-06-01), Jones
patent: 3975704 (1976-08-01), Klein
patent: 4030096 (1977-06-01), Stevens et al.
patent: 4063212 (1977-12-01), Sublett
patent: 4088978 (1978-05-01), Gilmour

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