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Media
Source:
DoN SBIR/STTR Success Stories |
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| About the Technology: |
 Applied Hydro-Acoustics Research, Inc. (AHA) has developed a new sonar beamforming technique for the Navy surface combatant hull-mounted array. The technique consists of a new method for adaptive beamforming (ABF). The Short-Time Adaptive Broadband Beamformer (STABB) algorithm differs from traditional ABF techniques by operating over a broad frequency range and having the ability to rapidly respond to changes in the acoustic noise field. The rapid adaptation characteristic enhances performance in the face of active reverberation and close-aboard fast moving targets. |
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| Applications: |
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Military and Commercial Significance: |
- NAVSEA PEO-IWS5 -AN/SQQ-89: Surface Ship USW Combat System
- Naval Surface Weapons Center/ Carderock
- Noise Source Localization Analysis
- Workstation
- Towed array sonar
- Sonobuoy active receivers, multi-static systems
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AHA’s new ABF technology and commercial off the shelf implementation improves anti-submarine warfare (ASW) sonar performance and lowers operating cost. Maintenance expenditures are reduced due to the use of lower-cost symmetric-multiprocessor server hardware and the need for fewer replaceable components. The algorithm significantly increases the ship’s sonar performance while the active sonar is in use and when operating in noisy acoustic environments. The technology raises hull array sonar gain, yields more accurate sonar target bearings, and increases target detection range and target holding time. It achieves better performance in automated active classification and tracking systems, and more robust performance in littoral water regions. The beamformer computing environment reduces system procurement and life-cycle maintenance cost of commercial Intel symmetric multi-processor servers, and substantially reduces the procurement cost of systems, in comparison to those procured in earlier years. Benefits of the ABF technology are applicable for towed array sonars, sonobuoy active receivers, and multi-static systems. |
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| Industry Contact: |
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Government Contact: |
AHA
5885 Trinity Parkway, Suite 230
Centerville, VA 20120
E-Mail: llew@aharinc.com
Telephone: (703) 968-8040
Country: USA
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Naval Surface Warfare Center, Carderock Division
9500 MacArthur Boulevard
West Bethesda, MD 20817-5700
Telephone: (301) 227-4299
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