Acoustic Interference Rejection

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$0.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
N66604-01-C-0424
Agency Tracking Number:
N981-1229
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Advanced Acoustic Concepts
200 13th Avenue, Ronkonkoma, NY, 11779
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
606421105
Principal Investigator:
Neil Malloy
Vice President
(410) 312-6300
Business Contact:
Brian Boyle
Sr. Vice President
(410) 312-6300
Research Institution:
n/a
Abstract
"Under Phase I array-processing techniques were developed andanalyzed which provided an effective interference rejectioncapability for acoustic intercept systems. This was demonstratedvia computer analysis and simulation of these techniques asapplied to a volumetric acoustic intercept sensor. It was shownthat, using such an array, an adaptive spatial normalizationtechnique could be used to suppress steady state and high dutycycle interference sources. Interference from such sources is amajor problem affecting existing systems. Under Phase II adeployable acoustic intercept alertment prototype processor willbe fabricated and tested which employs automated interferencerejection. The spatial cancellation techniques developed forPhase I will be integrated with processing for post detection,localization and classification of interfering sources. Thismulti dimensional spatial, temporal, and spectral interferencerejection approach will be designed to operate against a fullcomplement of interference source types. This integrated conceptwill be tested against available wide band sensor data, includingdata from the AN/WLR-9 and AN/SQQ-89 (V)15 MFTA ACI sensors, andalimited demonstration array for tank testing.BENEFITS: The technology demonstrated under this project will allow an acoustic intercept system to provide detection, classification and localization capability throughout a weapon engagement scenario. Thiswill allow the development

* information listed above is at the time of submission.

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