Directional Finding for Sources with Unknown Bandwidths and Center Frequencies

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$100,000.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
FA8718-07-C-0042
Agency Tracking Number:
F071-217-0251
Solicitation Year:
2007
Solicitation Topic Code:
AF071-217
Solicitation Number:
2007.1
Small Business Information
GITAM TECHNOLOGIES, INC.
9782 Country Creek Way, Dayton, OH, 45458
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
N
Duns:
134123475
Principal Investigator:
William McCormick
Senior Scientist
(937) 885-9767
william.mccormick@wright.edu
Business Contact:
Arnab Shaw
President and Technical Lead
(937) 885-9767
gitam13@yahoo.com
Research Institution:
n/a
Abstract
There is a current Air Force need to research, develop and implement direction finding algorithms that are capable of precise localization of sources with unknown bandwidth and center frequencies. Variety of broadband sources having different bandwidths and center frequencies, SNR-levels, cross-correlation or coherence properties, appear in many current and future COMINT applications. Although Direction-of-Arrival (DOA) estimation for narrowband and wideband sources has been an active research topic for over two decades, it appears that comprehensive study addressing complete parameter estimation, as set forth in this SBIR topic, has not been hitherto undertaken. In this proposal, Gitam Technologies, Inc. (GTI) proposes to conduct a comprehensive study of the entire gamut of DOA estimation related literature, perform detailed theoretical performance analysis and verify performance with simulation. The Phase-I objective is to prepare a definitive trade-off study of the capabilities and limitations of the algorithms. The overall objective is to develop an efficient means to perform high accuracy, high-resolution direction finding and spectral parameter estimation for multiple simultaneous wideband emitters. One of the earlier wideband DOA estimation approach has been applied to the given challenge problem, and the preliminary estimates of DOAs and bandwidths appear encouraging.

* information listed above is at the time of submission.

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