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Robust Towed Array Beamforming

Award Information

Agency:
Department of Defense 		Branch:
Navy 		Award ID:
65043 		Program Year/Program:
2004 / SBIR
Agency Tracking Number:
N031-1057 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Adaptive Methods, Inc
5860 Trinity Parkway Suite 200 Centreville, VA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2004
Title: Robust Towed Array Beamforming
Agency / Branch: DOD / NAVY
Contract: N00039-04-C-0034
Award Amount: $1,188,750.00
 

Abstract:

In Phase I Robust Towed Array Beamforming (RTAB) work, Applied Hydro-Acoustics Research, Inc. (AHA) developed and tested several candidate algorithms, including a data-adaptive "Hole-Filling" algorithm, that recover losses of acoustic performance resulting from acoustic channels failures. With SURTASS TwinLine-R sea-test data we have shown a 2 to 3 dB improvement in quiet beam levels by "hole-filling" failed sensors, with performance restoration back to that of a fully operational array, for random channel failure-rates of up to 15%. Additionally, AHA has demonstrated this performance with operationally relevant passive broadband and narrowband processing and prototype displays. Acoustic performance results show that Robust Beamforming Algorithms support continued field-operations, with excellent performance, for arrays that may otherwise be deemed operationally unavailable. In addition, AHA performed a preliminary sizing and timing study to show that this technology will fit in an inexpensive hardware footprint. A Phase II follow-on contract is recommended. In Phase II, AHA will continue to design and develop RTAB algorithms, and then develop, integrate, and test real-time RTAB software and transition it to a Common Processor environment. In the Phase II Option AHA will perform algorithm updates and develop an approach to transition RTAB technology to other Navy sensors.

Principal Investigator:

Walter Allensworth
Vice President
3018409722
walt@aharinc.com

Business Contact:

Llew Wood
President
7039688040
llew@aharinc.com
Small Business Information at Submission:

APPLIED HYDRO-ACOUSTICS RESEARCH, INC.
15825 Shady Grove Rd. Suite 135 Rockville, MD 20850

EIN/Tax ID: 520970306
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No