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Cost-Saving Enhancements to the Swimmer Detection Sonar Network (SDSN)

Award Information
Agency: Department of Homeland Security
Branch: N/A
Contract: NBCHC050126
Agency Tracking Number: 0511093
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: H-SB05.1-004
Solicitation Number: N/A
Solicitation Year: 2005
Award Year: 2005
Award Start Date (Proposal Award Date): 2005-05-20
Award End Date (Contract End Date): N/A
Small Business Information
99 Perimeter Road
Nashua, NH 03063
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Peter Stein
 (603) 880-3784
Business Contact
 Kimberly Gilbert
Phone: (603) 880-3784
Research Institution

A low cost Swimmer Detection Sonar Network (SDSN) is now being developed under an ONR Phase 2 SBIR and as a joint project between the USA and Singapore. The SDSN is a network of inexpensive sonar nodes where narrow sonar beams are formed using airbacked parabolic reflectors. The feasibility of the system has been proven through trials conducted in Singapore harbor and full development is well underway. Currently each parabolic reflector has a single transducer at the focal point and is used for both transmission and reception. There is one parabolic reflector for each beam, with up to 10 beams per node. A substantially less complex, cheaper, and smaller node might be realized using a single widebeam transmitter and a multibeam airbacked spherical reflector receiver. Initial modeling shows promise. The Phase 1 effort would include more thorough modeling, testing of a multibeam airbacked spherical reflector receiver, and design of a complete node. In Phase 2 we would build up 3 nodes and evaluate their performance against the current design. If successful this SBIR would make the SDSN even more cost effective, allowing for its use in a much broader range of applications, along with significantly increasing the commercial potential.

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

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