Bi-Static Chaff Signature Modeling

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 20732
Amount: $41,946.00
Phase: Phase I
Program: SBIR
Awards Year: 1993
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
245 East Gay Street, Columbus, OH, 43215
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. Nan Wang
 (614) 224-9078
Business Contact
Phone: () -
Research Institution
The scattering behavior for a collection of thousands of linear dipoles at resonance has long been a subject of study for passive electronic countermeasures (ECM) against pertinent threat radar systems. Previously, the echo area of the radar cross section (RCS) of a chaff cloud has been calculated by multiplying the number of dipoles by the so-called "tumble average RCS" of a single dipole. Estimates based on this simple model have been poor. In this study a rigorous mathematical model based on the sinusoidal reaction formulation will be solved by the method of moments of the Galerkin type. Using a snap-shot model of various chaff geometries, possibly from a fractal based generator, both the mono-static and bi-static scattering signatures will be statistically characterized. Furthermore, the effects of aspect angle on chaff signatures will be quantified, and the correlation between the chaff signatures obtained at different look angles will be established.

* Information listed above is at the time of submission. *

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