Robust Speech Recognition for Carrier Air Traffic Control

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$754,216.00
Award Year:
2007
Program:
SBIR
Phase:
Phase II
Contract:
N68335-07-C-0356
Award Id:
77056
Agency Tracking Number:
N061-012-1256
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
868 San Antonio Road, Palo Alto, CA, 94303
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
829385509
Principal Investigator:
Hui-LingLu
Principal Scientist
(650) 213-8585
vicky@optisyn.com
Business Contact:
P.Menon
President
(650) 213-8585
menon@optisyn.com
Research Institute:
n/a
Abstract
This proposal discusses the development of a noise-robust speech recognition system to be deployed for carrier air traffic control with the goal that the speech recognition capability enables seamless integration of the Navy Unmanned Combat Air Systems (N-UCAS) with the aircraft carrier operations. The proposed Phase II SBIR builds on a successful feasibility demonstration of the noise-resistance capability of the speech recognition system carried out during the Phase I SBIR project. The Phase I SBIR project has demonstrated the feasibility of using integrated acoustic/bone-conductive microphones for enhancing the performance of the speech recognizer under noisy environments. We have developed noise-robust speech recognition front-end processing schemes which combine the integrated acoustic/bone-conductive microphones with state-of-art noise-compensation algorithms such as missing-feature reconstruction and direct filtering. Experimental results show that these front-end processing schemes work well for both stationary and non-stationary noises that cannot be compensated by most existing de-noising methods. Extending from the Phase I feasibility study, Phase II work will develop a prototype system that is adapted to the carrier air traffic control application. Basic performance of the prototype system will be determined. The prototype system will serve as the baseline system for integrating with the N-UCAS operations and carrier onboard ATC and communication facilities, including ATC console, SATCC and the integration interface to the TTNT link.

* information listed above is at the time of submission.

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