1. COMPUTATIONAL MODELING OF UNCERTAINTY IN TIME-DOMAIN ELECTROMAGNETICS.
- Author
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Chauvière, C., Hesthaven, J. S., and Lurati, L.
- Subjects
- *
GALERKIN methods , *ELECTROMAGNETISM , *RADAR cross sections , *NUMERICAL analysis , *MONTE Carlo method , *PREDICATE calculus - Abstract
We discuss computationally efficient ways of accounting for the impact of uncertainty, e.g., lack of detailed knowledge about sources, materials, shapes, etc., in computational time-domain electromagnetics. In contrast to classic statistical Monte Carlo–based methods, we explore a probabilistic approach based on high-order accurate expansions of general stochastic processes. We show this to be highly efficient and accurate on both one- and two-dimensional examples, enabling the computation of global sensitivities of measures of interest, e.g., radar-cross-sections (RCS) in scattering applications, for a variety of types of uncertainties. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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