You are here

Air to Ground Signature Database Development Technologies for Combat Identification

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-06-C-1008
Agency Tracking Number: F051-212-1143
Amount: $749,972.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: AF05-212
Solicitation Number: 2005.1
Solicitation Year: 2005
Award Year: 2006
Award Start Date (Proposal Award Date): 2006-05-31
Award End Date (Contract End Date): 2008-05-31
Small Business Information
31255 Cedar Valley Drive Suite 327
Westlake Village, CA 91362
United States
DUNS: 005100560
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: Yes
Principal Investigator
 vijaya shankar
 Vice President
 (818) 865-3713
Business Contact
 Vijaya Shankar
Title: Vice President
Phone: (818) 865-3713
Research Institution

The physics-based scattering phenomena from general targets can be very complex and occur in many different forms such as: a) specular reflection, b) creeping waves, c) traveling waves, d) slow moving surface waves, e) edge diffraction, f) singular currents at surface discontinuities, g) resonating gaps and cavities, and h) general material response. While in vacuum Maxwell’s equations representing the coupling between electric and magnetic fields are linear, it is still a formidable challenge to be able to accurately simulate the various scattering phenomena. Especially for waves traveling over long distances, the relationship between the phase and amplitude of various scattered waves and the incident illumination is very critical for accurate representation of the near fields and the resulting farfield. While it is of great interest to solve physics-based scattering from electrically large problems very accurately, it may not be efficient to solve the whole problem using one single full-wave solver. To obtain relatively fast turnaround, it is potentially efficient to combine the virtues of different approaches in a hybrid fashion to solve such large problems. For example, to solve a full size aircraft (Figure 1) at X-band range, one could use high frequency approximation for the exterior surfaces and use a full-wave solver for the long engine interior ducts, while taking into account the interaction between the ducts and the exterior. In this way, full target RCS accurate to a fraction of a dB can be obtained in a day turnaround using a 64-128 node PC cluster.

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

US Flag An Official Website of the United States Government