NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-1 A3.02-8812
SUBTOPIC TITLE: Next Generation Air Transportation - Airportal
PROPOSAL TITLE: An Optical Wake Vortex Detection System for Super-density Airport Operation

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
2 Metropolitan Ct, Suite 6
Gaithersburg, MD 20878 - 4003
(301) 963-3630

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Ting-i Wang
2 Metropolitan Ct, Ste 6
Gaithersburg, MD 20878 - 4003
(301) 963-3630

Expected Technology Readiness Level (TRL) upon completion of contract: 4 to 6

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
OSI proposes to develop a wake vortex detection system including a group of double-ended and single-ended optical scintillometers properly deployed in the airfield to measure ground and near ground crosswind, turbulence, and wake vortex using atmospheric turbulence-induced optical scintillations. As part of efforts, OSI also proposes to develop a single-ended optical scintillometer, together with a retro-reflector, for the measurement of near ground real-time crosswind and wake vortex. OSI will perform system analysis and design of the proposed system to detect occurrences, location, magnitude, and persistence of wake turbulence. With the simultaneous measurements of crosswind and turbulence, the sensor system is also able to forecast the arrival time of the airplane generated wake vortex drifting to a nearby runway.

In the Phase I effort, OSI will determine the optimum siting criteria of deploying the double-ended and single-ended sensors on the airport. This includes combinations of parallel to runway, cross the runway, and retro-reflector on high towers installations. The goal is to form a network of sensors to cover essential areas of airport field to provide wake vortex data for the predictive modeling of wake vortex hazard.

As a side benefit, the vortex detection system could measure downdraft by deploying two sets of scintillometers on both sides of the runway. The line-averaged crosswind measured by the two sets will provide real-time continuous measurements of convergence and divergence of the wind field between the two optical paths. Vertical winds, and hence the downdraft, can be derived from the measured divergence. The proposed vortex detection system will also be able to provide critical large area wind information. By incorporating this valuable information into the low-level wind shear modeling, it will greatly enhance the performance of the present airport low-level wind shear systems.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
NASA Airspace Systems (AS) Program has identified that advanced technologies to detect and avoid wake vortex hazards is critical for performing safe, closely spaced and converging approaches at closer distances than are currently allowed. One of the primary interests is Wake Vortex Hazard Solutions that include wake avoidance procedures for airports with closely spaced runways; characterization of wake vortex and atmospheric hazards to flight; and wake vortex alleviation/mitigation technologies.

The proposed optical scintillometer and wake vortex detection system will provide critical real-time information that will increase throughput of an airport runway complex and achieve the highest possible efficiencies in the use of airportal resources. Super-density operations will entail reduced aircraft wake vortex separation standards. The proposed effort will lead to the development of wake vortex detection system that provides critical information relevant to NASA's NGATS-Airportal effort.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The FAA may require the vortex detection system successfully developed in this SBIR to be incorporated in the NGATS. The vortex detection and avoidance system will improve airport throughput and efficiency. More tests may be required and system may further improved in Phase 3 with FAA that will lead the system to TRL level 9 -the Actual system (flight) proven through successful mission operations.

A TRL-9 system certainly has many market opportunities in domestic and international airports. To further expose OSI's products, OSI may team up with a large airport equipments vendor, such as the one with Airport Surface Traffic Configuration Management System. The team-up will lead to the large scale deployment of wake vortex detection systems at airports around the globe.

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.

Airport Infrastructure and Safety

Form Generated on 09-18-07 17:50