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Self-Aligning Windscreen for UGV Flow Noise Reduction

Award Information
Agency: Department of Defense
Branch: Army
Contract: DAAD17-02-C-0068
Agency Tracking Number: A012-0231
Amount: $119,997.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2002
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
15261 Connector Lane
Huntington Beach, CA 92649
United States
DUNS: 614108918
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jay Cleckler
 Principal Investigator
 (714) 903-1000
Business Contact
 Parviz Parhami
Title: CEO
Phone: (714) 903-1000
Research Institution

Flow noise currently limits the applicability of acoustic detection/tracking arrays on mobile platforms. Reduction of this noise is necessary for the acoustical detection of targets at tactically significant ranges, in conditions of high winds and/or highvehicle velocities. The most direct and effective way to reduce the effects of flow noise is to keep it from being generated in and around the microphone detection elements. SARA Inc. proposes a novel flow self-alignment microphone windscreen to minimizethe effects of aeroacoustic noise on array elements. This concept is based on SARA's proprietary windscreen designs, which have provided in excess of 15dB of noise reduction for analogous applications. SARA offers its aeroacoustic design expertise tominimize vehicle flow noise by small modifications to the vehicles aerodynamics. For second order flow noise reduction SARA offers one of two powerful signal-processing techniques capable of improving detection confidence in noisy conditions. Reduction offlow noise would greatly extend the range for acoustic detection benefiting the following applications: Un-manned ground vehicles (UGV), Un-manned air vehicles (UAV), manned ground and air vehicles, and unattended ground sensors.Advanced windscreens may also benefit professional film production and the monitoring of environmental noise.

* Information listed above is at the time of submission. *

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