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Proceedings Paper

Requirements definition by numerical simulation
Author(s): James J. Hickman; Chris Kostas; Kang T. Tsang
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Paper Abstract

We are investigating the issues involved in requirements definition for narcotics interdiction: how much of a particular signature is possible, how does this amount change for different conditions, and what is the temporal relationship in various scenarios. Our approach has been to simulate numerically the conditions that arise during vapor or particulate transport. The advantages of this approach are that (1) a broad range of scenarios can be rapidly and inexpensively analyzed by simulation, and (2) simulations can display quantities that are difficult or impossible to measure. The drawback of this approach is that simulations cannot include all of the phenomena present in a real measurement, and therefore the fidelity of the simulation results is always an issue. To address this limitation, we will ultimately combine the results of numerical simulations with measurements of physical parameters for inclusion in the simulation. In this paper, we discuss these issues and how they apply to the current problems in narcotics interdictions, especially cargo containers. We also show the results of 1D and 3D numerical simulations, and compare these results with analytical solutions. The results indicate that this approach is viable. We also present data from 3D simulations of vapor transport in a loaded cargo container and some of the issues present in this ongoing work.

Paper Details

Date Published: 6 October 1994
PDF: 7 pages
Proc. SPIE 2276, Cargo Inspection Technologies, (6 October 1994); doi: 10.1117/12.189189
Show Author Affiliations
James J. Hickman, Science Applications International Corp. (United States)
Chris Kostas, Science Applications International Corp. (United States)
Kang T. Tsang, Science Applications International Corp. (United States)

Published in SPIE Proceedings Vol. 2276:
Cargo Inspection Technologies
Andre H. Lawrence, Editor(s)

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