NASA SBIR 2014 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER: 14-1 A3.02-9794
SUBTOPIC TITLE: Quiet Performance
PROPOSAL TITLE: Phased Array Technique for Low Signal-To-Noise Ratio Wind Tunnels

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
OPTINAV, Inc.
10914 Northeast
Bellevue, WA 98004 - 2928
(425) 891-4883

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Robert Patrick Dougherty
rpd@optinav.com
10914 NE 18 ST
Bellevue, WA 98004 - 2928
(425) 891-4883

CORPORATE/BUSINESS OFFICIAL (Name, E-mail, Mail Address, City/State/Zip, Phone)
Robert Patrick Dougherty
rpd@optinav.com
10914 NE 18 ST
Bellevue, WA 98004 - 2928
(425) 891-4883

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 5
End: 6

Technology Available (TAV) Subtopics
Quiet Performance is a Technology Available (TAV) subtopic that includes NASA Intellectual Property (IP). Do you plan to use the NASA IP under the award?
No

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Closed wind tunnel beamforming for aeroacoustics has become more and more prevalent in recent years. Still, there are major drawbacks as current microphone arrays are rather larger and hard to install and conventional beamforming and deconvolution techniques do not work well in low signal-to-noise environments. Outlined in the proposal is a phased airfoil imaging microphone array located inside the wind tunnel which utilizes Functional Beamforming, a modification of conventional beamforming. A completed unit would be comprised of several airfoils with microphones placed in a linear fashion along the leading edges. Functional Beamforming is a breakthrough algorithm that will allow for much better beamform mapping with much smaller arrays than what is currently available. Because of the potential small size of the array, it would be easy to install and implement. Placing the array in the tunnel also allows for numerous viewing angles of the test models as opposed to a single view provided by wall arrays. Phase I will focus on designing, building, and testing the multi-arm airfoil array to troubleshoot operation and eliminate showstoppers. Functional Beamforming software is currently available and does not require further development the rights of which are owned by OptiNav, inc. The PI has a plethora of experience and knowledge in acoustical testing and phased imaging arrays and was a key investigator in early closed wind tunnel acoustical testing. The proposal outlines a work plan which includes testing in the Kirsten Wind Tunnel at the University of Washington which has already agreed to support the tests.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The innovation would primarily appeal to NASA owned closed wind tunnels like ATP facilities including the 9x15 foot Low Speed Wind Tunnel at GRC, the 14x22 foot Subsonic Tunnel, and the National Transonic Facility at LaRC.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The innovation would also appeal to all other government, university, and private closed wind tunnel facilities around the world. Open wind tunnels would also be another application although not the primary target. Basically, any wind tunnel facility with an interest in testing acoustics would be a potential customer. Functional Beamforming has an even greater number of applications. The software can extend too many other fields including underwater acoustics, cellular telephone networks, radio astronomy, seismology, medical imaging, and any other field that relies on conventional beamforming.

TECHNOLOGY TAXONOMY MAPPING (NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.)
Acoustic/Vibration
Aerodynamics
Non-Electromagnetic

Form Generated on 04-23-14 17:37