BibTeX
@MISC{Baker_1gps,
author = {Gregory J. Baker and Y. R. M. Bonin and Michael Morris},
title = {1 GPS Equipped Sonobuoy},
year = {}
}
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Abstract
Sonobuoys equipped with a Global Positioning System (GPS) prove extremely useful when calibrating underwater sonar systems. Hermes Electronics Inc., in collaboration with Defence Research Establishment Atlantic (DREA) has developed such a buoy. The sonobuoy is a modified version of Hermes AN/SSQ53D(2) DIFAR sonobuoy. Modifications include de-sensitizing the acoustic receiver, installing a commercial GPS engine, and providing an electronic interface between the buoy and the GPS unit. Modulation interference with DIFAR pilot tones and power considerations required that the directional channels be disabled. Buoys were tested with a passive patch antenna and an active (powered) antenna. The quality of the binary data transmitted from the buoy was assessed using GPS Real Time Kinematic (RTK) software developed by Waypoint Consulting. In this paper the sonobuoy modifications are outlined and results obtained with the buoy during two sea trials are presented.
Keyphrases
gps equipped sonobuoy sea trial modified version binary data difar pilot tone hermes electronics inc gps unit commercial gps engine global positioning system gps real time kinematic waypoint consulting underwater sonar system electronic interface modulation interference directional channel defence research establishment atlantic power consideration passive patch antenna hermes ssq53d sonobuoy modification difar sonobuoy acoustic receiver
