An Automated Acoustic System to Monitor and Classify Birds

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$100,000.00
Award Year:
2002
Program:
STTR
Phase:
Phase I
Contract:
F49620-02-C-0044
Agency Tracking Number:
F023-0105
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Intelligent Automation, Inc.
7519 Standish Place, Suite 200, Rockville, MD, 20855
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
161911532
Principal Investigator:
Chiman Kwan
Director of Research & Development
(301) 294-5238
ckwan@i-a-i.com
Business Contact:
Marc Toplin
Director of Contracts
(301) 294-5215
mtoplin@i-a-i.com
Research Institution:
Curators of The University of Mo
Michael J Warnock, PhD
310 Jesse Hall, OSPA
Columbia, MO, 65211
(573) 882-7560
Nonprofit college or university
Abstract
"Collisions between aircraft and birds have become an increasing concern for human health and safety. More than four hundred people and over four hundred aircraft have been lost globally. To minimize the number of birdstikes, microphone arrays have beenused to monitor birds near the airport or some critical locations in the airspace. However, the range of existing arrays is only limited to a few hundred meters. Moreover, the identification performance in low signal-to-noise environment is notsatisfactory.Here Intelligent Automation, Incorporated (IAI) and its subcontractor, Prof. Dominic Ho of the University of Missouri, propose a novel system to improve bird monitoring and recognition system in noisy environments. First, a microphone dish concept isproposed that provides very directional and long range (a few thousand meters) acquisition of bird sounds, can simultaneously pick up and track sound from different directions, and the cost of the dish will be less than $100. Second, an efficientrecognition algorithm is proposed which consists of stages of data reduction and feature extraction, and classification using Hidden Markov Model (HMM). The overall system is suitable for real-time monitoring and recognition for a large number of birds. The proposed acoustic system involving a novel microphone dish and an efficient recognition system can have many applications, including birdstrike warning system, speech enhancement for aircraft pilots, policemen, firefighters, cellular phone users, etc.It can also be useful as a directional speaker system for underwater communications."

* information listed above is at the time of submission.

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