Modeling and Simulation Technologies for Multi-Sensor Dynamic Targeting

At HyPerComp, under funding from AFRL, DARPA, and AFOSR, we have undertaken the development of a state-of-the-art time-domain CEM technology known as TEMPUS (Time-Domain EM Parallel Unstructured Simulator). TEMPUS is a complete industrial grade CEM environment that includes all aspects of a CEM simulation such as CAD geometry modeling/repair, unstructured gridding for full-scale targets with general materials, parallel run set up (for PC- and workstation clusters) and higher order accurate solvers for Maxwell's equations, and postprocessing utilities for solution visualization and extraction of final results like bistatic/monostatic RCS, SAR images, and range profiles. The goal of this proposed effort is to significantly elevate the state of the art of physics-based modeling in TEMPUS to be able to routinely perform large-scale scene modeling and electromagnetic simulation of objects in a terrain setting. Some of the key areas to be addressed are 1) dispersive characterization of various terrain (ground conditions and foliage), 2) ability to efficiently model small geometrical features on a large target (surface discontinuities and grooves), and 3) implement a homogeneous chaos model to account for uncertainties/variations in terrain environment.