Uncertainty Analyses in the Finite-Difference Time-Domain Method

R.S. Edwards, A.C. Marvin, S.J. Porter

Research output: Contribution to journalArticlepeer-review


Providing estimates of the uncertainty in results obtained by Computational Electromagnetic (CEM) simulations is essential when determining the acceptability of the results. The Monte Carlo method (MCM) has been previously used to quantify the uncertainty in CEM simulations. Other computationally efficient methods have been investigated more recently, such as the polynomial chaos method (PCM) and the method of moments (MoM). This paper introduces a novel implementation of the PCM and the MoM into the finite-difference time -domain method. The PCM and the MoM are found to be computationally more efficient than the MCM, but can provide poorer estimates of the uncertainty in resonant electromagnetic compatibility data.
Original languageEnglish
Article number5342494
Pages (from-to)155-163
Number of pages8
JournalIEEE Transactions on Electromagnetic Compatibility
Issue number1
Publication statusPublished - Feb 2010

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© 2010 INST ELECTRICAL ELECTRONICS ENGINEERS INC. This is an author produced version of a paper published in IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY. Uploaded in accordance with the publisher's self archiving policy.

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