Short-Range Ultra-Low-Cost Anti-Submarine Sensors

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-05-C-R148
Agency Tracking Number: 03SB1-0347
Amount: $795,926.00
Phase: Phase II
Program: SBIR
Awards Year: 2005
Solicitation Year: 2003
Solicitation Topic Code: SB031-023
Solicitation Number: 2003.1
Small Business Information
200 Turnpike Road, Chelmsford, MA, 01824
DUNS: 131640919
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jonathan Towle
 Principal Investigator
 (978) 606-2601
Business Contact
 Joseph Kunze
Title: President
Phone: (978) 606-2601
Research Institution
SI2 Technologies, Inc. (SI2) proposes the use of an innovative Large-N array of sensor suites for littoral water ASW. The SI2 concept utilizes small sensors with passive and active sonar to detect modern diesel submarines operating on batteries. Using both active and passive sonar provides the system with an extremely low false alarm rate (FAR). Hundreds to thousands of these sensors may be deployed in littoral waters in a specific pattern such as a multi-mile barrier. Since each of SI2’s sensors has only a short active sonar range, they are free of the acoustic multi-path problem that plagues conventional sonobuoys. Hence, SI2’s sensor array is less prone to be “fooled” by spurious signals (e.g., due to ocean debris or temperature gradients). Cost effectively fabricating large numbers of these sensor suites is now possible due to SI2’s state-of-the-art system integrated manufacturing techniques.

* Information listed above is at the time of submission. *

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