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Automated Situational Awareness Technology for Collision Avoidance

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00024-04-C-4179
Agency Tracking Number: N041-064-1141
Amount: $99,422.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N04-064
Solicitation Number: 2004.1
Solicitation Year: 2004
Award Year: 2004
Award Start Date (Proposal Award Date): 2004-05-10
Award End Date (Contract End Date): 2004-11-06
Small Business Information
10070 Barnes Canyon Road
San Diego, CA 92121
United States
DUNS: 107928806
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jim Beaver
 Engineering Manager
 (858) 535-9680
Business Contact
 Richard Miller
Title: VP TD&M Group
Phone: (858) 373-2714
Research Institution

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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