ADAPTIVE CANCELLATION OF ENGINE NOISE

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$206,000.00
Award Year:
1984
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
83
Agency Tracking Number:
83
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
12 Hartwell Avenue, Lexington, MA, 02173
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
James M. Kates
(617) 861-1500
Research Institution:
n/a
Abstract
VOICE COMMUNICATIONS FOR COMMAND AND CONTROL CAN BE SEVERELY IMPAIRED BY THE PRESENCE OF BACKGROUND NOISE AT THE TALKER'S MICROPHONE. ONE OF THE MAJOR SOURCES OF BACKGROUND NOISE IS ENGINE OR TURBINE NOISE. SIGNATRON PROPOSES A NEW APPROACH FOR AN ADAPTIVE NOISE CANCELLATION SYSTEM TO REDUCE THE EFFECTS OF SUCH INTERFERENCE. THE NEW SYSTEM WILL USE MULTIPLE SENSORS TO OBTAIN THE MOST ACCURATE NOISE REFERENCE WAVEFORMS POSSIBLE. THESE SIGNALS WILL BE PROCESSED BY AN ADAPTATION ALGORITHM THAT IS COMPUTATIONALLY EFFICENT AND HAS A RAPID RATE OF CONVERGENCE IN ORDER TO COMPENSATE FOR SPEECH MICROPHONE DISPLACEMENTS.

* information listed above is at the time of submission.

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