Oceanographic mapping system

Details Oceanographic mapping system Oceanographic mapping system

1974-09-26

1980-06-10

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Side scanning or contour mapping sonar systems

367 92, 367 97, 367100, 367103, 367108, 367115, 343100CL, G01S 968, G01S 760

Patent

active

042076200

ABSTRACT:
An underwater mapping system in which a swath of terrain, much wider than a sonar beam width, is observed by means of a sonar beam scanned in the cross track plane of a ship. Filtering and correlation techniques are employed to compensate for distortions in echoes emanating from the ocean bottom by a selection of filter coefficients in accordance with the orientation of the sonar beams and by providing a simulated echo envelope for correlation.

REFERENCES:
patent: 2800654 (1957-07-01), DeRosa
patent: 3096482 (1963-07-01), Frank et al.
patent: 3419867 (1968-12-01), Pifer
patent: 3716825 (1973-02-01), Walsh et al.
patent: 3723952 (1973-03-01), Walsh

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