Platform carried bistatic sonar

Details Platform carried bistatic sonar Platform carried bistatic sonar

1992-05-21

1993-08-17

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Parametric sonar

G01S 1500

Patent

active

052375412

ABSTRACT:
A platform borne sonar system for the detection of targets includes a transmitting projector suspended beneath the water surface from a platform for generating a virtual parametric acoustic array in a water column, forming a beam of acoustic energy. The beam is scannable in azimuth to steer the direct beam in particular directions. A plurality of detectors are arranged to receive the acoustic energy scattered or reflected from any submerged objects present in said direct beam, wherein one or more of the detectors are located the of said direct beam for bistatic reception of the beam reflected off the target. A detector may be suspended beneath the projector for monostatic reception. The direct beam may be scannable in elevation. The direct beam may be narrower vertically than horizontally.

REFERENCES:
patent: 3237151 (1966-02-01), Thorpe

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