Improved Detection, Localization, and Classification of Torpedoes

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00024-13-P-4009
Agency Tracking Number: N131-047-0006
Amount: $79,966.00
Phase: Phase I
Program: SBIR
Awards Year: 2013
Solicitation Year: 2013
Solicitation Topic Code: N131-047
Solicitation Number: 2013.1
Small Business Information
chaotic.com
P.O. Box 1010, Great Falls, VA, -
DUNS: 198191330
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Rick Holland
 Senior Fellow Scientist
 (703) 276-4678
 rick@chaotic.com
Business Contact
 Ted Frison
Title: President
Phone: (703) 759-5257
Email: ted@chaotic.com
Research Institution
N/A
Abstract
By exploiting the high Doppler rate of torpedoes, low-latency, high-reliability, and high-mobility torpedo detection, classification and localization (DLC) can be accomplished with joint active-passive sonar signal processing using the hull array. Our system combines passive cues and a new active signal processing technology for deployed waveforms. The signal processing is carried out in real time within a common time-frequency representation for active-passive torpedo DLC but uses a novel technique, invented by chaotic.com, called Doppler-filtered pulse compression (DFPC). DFPC provides high probabilities of detection and correct classification while virtually eliminating confusable clutter. DFPC also provides the high Doppler and range resolution needed to spatially resolve salvos more efficiently than traditional high-resolution waveforms. To make reliable performance predictions for torpedo DLC, a method for extracting, validating, and generalizing highly realistic channel and target impulse response functions from legacy data is proposed.

* information listed above is at the time of submission.

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