L-3 Communications Corporation

Northrop Grumman Guidance and Electronics Company, Inc.

Ernest Theodore Bick

Merrill E Fife

Scott A Hudson

Systems and methods are provided for automatically detecting sonar contacts. The system comprises a data analyzer that integrates the raw data from a plurality of sonar detectors over a predetermined period of time, thereby providing integrated data characterizing a sonar image on a sonar display. A Hough transform module is configured to employ a Hough transform algorithm that transforms at least a portion of the integrated data to detect a substantially straight line in the sonar image.

System and method for automatic detection of a sonar contact

A compact, modular sonar assembly for use on the bow of a ship having separate transmitting and receive arrays confined within a single acoustic housing. The narrow and compact design fits much better into the hydrodynamically desirable bulbous bow deign than the typical bow dome sonar design and achieves good performance at a low cost with reduced size and weight.

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Newhall, CA, United States of America

Ernest Theodore Bick