Ionospheric Imaging Using NVIS

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-07-C-0156
Agency Tracking Number: F074-031-0130
Amount: $99,988.00
Phase: Phase I
Program: STTR
Awards Year: 2007
Solitcitation Year: 2007
Solitcitation Topic Code: AF07-T031
Solitcitation Number: N/A
Small Business Information
AEROASTRO, INC.
20145 Ashbrook Place, Ashburn, VA, 20147
Duns: 605603984
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bryan James
 Principal Engineer
 (303) 798-2121
 bryan.james@aeroastro.com
Business Contact
 Brenda Gravelle
Title: Director of Proposals
Phone: (303) 798-2121
Email: brenda.gravelle@aeroastro.com
Research Institution
 VIRGINIA POLYTECHNIC INSTITUTE
 Linda Bucy
 460 Turner Street
Suite 306
Blacksburg, VA, 24060
 (540) 231-5281
 Nonprofit college or university
Abstract
Real-time estimation of relevant ionospheric parameters is required for military applications and to further our understanding of space weather and its societal and technological impacts. Currently, a major limitation in the modeling of ionospheric physics is a complete lack of input data measurements. The HF transmitter/receiver system proposed here contributes measurements of the bottom-side ionosphere. With modern HF components and signal processing, a low-power, inexpensive HF transmitter array and receiver system can be used for ionospheric specification and we seek to develop this further. The reduction in transmitter power attained with signal processing reduces total system cost, permitting a significant increase in HF transmitter/receiver density, which, in turn, allows for more accurate estimation of ionospheric parameters, such as the 3-D electron density. The system uses novel narrowband signal processing and unique dual-frequency estimation of the 3-D electron density along with E- and D-layer absorption. In addition, Doppler shift data extracted from the measurements can provide additional information on the transient motion of bottom-side ionosphere.

* information listed above is at the time of submission.

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