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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
Contract: NNX10CC93P
Agency Tracking Number: 094813
Amount: $99,999.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: O3.01
Solicitation Number: N/A
Timeline
Solicitation Year: 2009
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-01-29
Award End Date (Contract End Date): 2010-07-29
Small Business Information
13619 Valley Oak Circle
Rockville, MD 20850-3563
United States
DUNS: 620282256
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: Yes
Principal Investigator
 Chiman Kwan
 Principal Investigator
 (240) 505-2641
 chiman.kwan@signalpro.net
Business Contact
 Chiman Kwan
Title: Chief Technology Officer
Phone: (240) 505-2641
Email: 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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