A High Performance Approach to Minimizing Interactions between Inbound and Outbound Signals in Helmet

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,999.00
Award Year:
2010
Program:
SBIR
Phase:
Phase I
Contract:
NNX10CC93P
Agency Tracking Number:
094813
Solicitation Year:
2009
Solicitation Topic Code:
O3.01
Solicitation Number:
n/a
Small Business Information
Signal Processing, Inc.
13619 Valley Oak Circle, Rockville, MD, 20850-3563
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
Y
Duns:
620282256
Principal Investigator:
Chiman Kwan
Principal Investigator
(240) 505-2641
chiman.kwan@signalpro.net
Business Contact:
Chiman Kwan
Chief Technology Officer
(240) 505-2641
chiman.kwan@signalpro.net
Research Institution:
n/a
Abstract
We propose a high performance approach to enhancing communications between astronauts. In the new generation of NASA audio systems for astronauts, inbound signals may interfere with outbound signals and create an annoying positive feedback during communications. Our objective is to eliminate the inbound signals in the outbound path. We propose to apply an affine projection algorithm (APA) to achieve the above objective. In our recent studies, it was found that APA achieves a balance between performance (convergence speed) and computational complexity, as compared to least mean square (LMS) and recursive least square (RLS) algorithms. Our preliminary simulation results showed that the proposed framework is promising. In Phase 1, we will perform extensive simulations to prove the feasibility of our approach. In Phase 2, the validated algorithms will be implemented in radiation hardened DSP or Field Programmable Gate Array (FPGA).

* information listed above is at the time of submission.

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