SBIR/STTR Research Award
ADAPTIVE CANCELLATION OF ENGINE NOISE
Award amount
$206,000Program and phase
SBIR · Phase IIAward year
1984Award details
- Awarding agency
- Department of Defense
- Branch
- Army
- Recipient company
- Signatron Acquisition Corp
- Proposal award date
- Not reported
- Contract end date
- Not reported
- UEI
- Not reported
- Solicitation number
- Not reported
- Topic code
- Not reported
Research 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.
Technology keywords
Not reported