Target Detection using a Computationally Efficient Physics-Based Modeling Tool

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8651-05-C-0231
Agency Tracking Number: F051-155-0915
Amount: $99,989.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: AF05-155
Solicitation Number: 2005.1
Small Business Information
P.O. Box 618, Christiansburg, VA, 24068
DUNS: 008963758
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bradley Davis
 Research Scientist
 (540) 953-1785
Business Contact
 Richard Claus
Title: President
Phone: (540) 953-1785
Research Institution
In this Phase I SBIR program, NanoSonic would apply its expertise in analytical and computational techniques in electromagnetics to implement and validate a powerful solution for detection of obscured and hidden targets. In accomplishing this program, NanoSonic has significant experience with random media propagation as well as computational techniques. In addition, NanoSonic would work with an expert from a major research university who specializes in random surface scattering and the radar systems group from a prime defense contractor. Although most current approaches use a radiative transfer method, they are either purely phenomenological or too complex for rapid solution. Alternatively, assuming independently scattering between scattering centers, it is possible to convert single-frequency models of the individual RCS of discrete constituents and the RCS per unit area for an extended surface into models for the incoherent time-dependent average scattered waveform produced under pulse illumination. We have used this impulse response approach to characterize time-domain the return from a random medium over a rough interface with a hidden target. The reduced-order model yields the returned power waveform from both the surface and volume in a convolutional form. This permits the rapid and efficient evaluation of the waveform using the FFT.

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

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