| Sol No.: |
Navy STTR FY2007 |
| Topic No.: |
N07-T035 |
| Topic Title: |
Advanced ASW Acoustic Transducers and Signal Processing |
| Proposal No.: |
N074-035-0289 |
| Firm: |
Applied Physical Sciences Corp.
475 Bridge Street
Suite 100
Groton, Connecticut 06340 |
| Contact: |
James McConnell |
| Phone: |
(860) 448-3253 |
| Web Site: |
www.aphysci.com |
| Abstract: |
Preliminary development of a noise audit model for vector sensor towed arrays will be performed and is focused on tasks related to validating an analytical model of a thin-line array. An in-house numerical code known as the duct transmission line (DTL) modeling tool will be adapted for specific application to towed arrays having periodic impedance discontinuities. Flow noise mitigation techniques designed to remove the flow noise signal from pressure gradient hydrophones will be further developed. Data from an upcoming tow test will be used to help validate the model. Evaluation of these concepts will facilitate component-level and system-level requirements for next generation directional sensors and arrays. Surveillance platforms targeted for commercialization of this technology include the TB-23 and TB-29 submarine towed arrays and the AN/WSQ-11 surface ship towed array. |
| Benefits: |
The technology developed under this STTR effort will facilitate unprecedented advances in towed array capabilities for both ASW and torpedo defense applications. The chief enhancement is the resolution of left/right bearing ambiguity which will lead to faster response times by Navy crews in tactical situations. Additionally increased detection range may be achieved in certain towing configurations and frequency bands. The technology can be transitioned to improve the performance of streamer arrays utilized by the oil exploration industry as well as U.S. Navy acquisition programs. |