Automated Situational Awareness Technology for Collision Avoidance

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$949,952.00
Award Year:
2005
Program:
SBIR
Phase:
Phase II
Contract:
N00024-05-C-4160
Agency Tracking Number:
N041-064-1141
Solicitation Year:
2004
Solicitation Topic Code:
N04-064
Solicitation Number:
2004.1
Small Business Information
INFORMATION SYSTEMS LABORATORIES, INC.
10070 Barnes Canyon Road, San Diego, CA, 92121
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
107928806
Principal Investigator:
Jim Beaver
Engineering Manager
(858) 373-2701
jbeaver@islinc.com
Business Contact:
Robert Giannaris
V.P. SPS Engineering
(858) 373-2726
bgiannaris@islinc.com
Research Institution:
n/a
Abstract
The primary sensor used by a submerged submarine for target detection, tracking and collision avoidance is passive SONAR. Modern SONARS have evolved to a point where contacts can be detected and tracked with a high degree of accuracy. There are situations however, when contacts are not detected or trackers become unstable due to acoustic conditions or relative position of the contact to the submarine. This can result in a close encounter or even more disastrous, a collision. All vessels emanate horizontal electric dipole (HED) and extremely low frequency electromagnetic signals (ELFE) caused by permanent galvanic corrosion currents on the hull of the vessel, which leak into the surrounding conducting seawater. These signals have been detected at ranges to 2000 meters. E-field sensors have specific advantages over acoustic sensors because they are not affected by acoustic conditions and are most effective inside SONAR near field ranges. An array of E-Field sensors on the submarine hull can provide enhanced short-range localization. Acoustic and E-Field signal detections can be fused to provide an alert to the submarine Commander of contacts “close aboard” therefore improving situational awareness and avoid disastrous consequences such as a collision at sea.

* information listed above is at the time of submission.

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