High Gain Array of Velocity Sensors

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-10-C-0282
Agency Tracking Number: N101-014-0809
Amount: $79,950.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2010
Solicitation Topic Code: N101-014
Solicitation Number: 2010.1
Small Business Information
Navmar Applied Sciences Corporation
65 West Street Road, Building C, Warminster, PA, 18974
DUNS: 095275343
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Roger Holler
 Principal Investigator
 (215) 675-4900
Business Contact
 Robert Bauder
Title: Vice President, Dir. of C
Phone: (610) 619-7443
Email: bauder@navmar.com
Research Institution
Improvements in the noise quieting of submarines have reduced the effectiveness of passive sonobuoys in Anti-Submarine Warfare (ASW), causing greater emphasis on active acoustics. However, a sonobuoy with array gain of 24 dB would be a useful asset in the Navy’s airborne ASW capability. Using velocity sensors can reduce the number of array sensor nodes over omnidirectional hydrophones and reduce the array aperture, needed to provide this much gain in an A-size sonobuoy. Maximum gain is achieved in the real world noise environment, where discrimination against vertical wind-wave noise will improve array performance. The acoustic frequency and array gain will define the array geometry. The large array provides a challenge to package the array in A-size, to deploy it, and maintain the array geometry over the life of the buoy. The Phase I effort will determine the feasibility of developing an innovative free floating high gain array of small inexpensive velocity sensors that can provide over 24dB gain, demonstrate innovative packaging and deployment concepts for the array in an A-size sonobuoy design, evaluate the performance of candidate arrays in realistic noise fields, through modeling, and to select the array design for fabrication and testing in Phase II.

* information listed above is at the time of submission.

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