Uncertainty Analyses in the Finite-Difference Time-Domain Method

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 ef...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2010-02, Vol.52 (1), p.155-163
Main Authors: Edwards, R.S., Marvin, A.C., Porter, S.J.
Format: Article
Language:English
Subjects:
Acceptability
Applied classical electromagnetism
Applied sciences
Computational efficiency
Computational electromagnetism
Computer simulation
Design. Technologies. Operation analysis. Testing
Electromagnetic compatibility
Electromagnetic wave propagation, radiowave propagation
Electromagnetism
electron and ion optics
Electronics
Equations
Estimates
Exact sciences and technology
Finite difference method
Finite difference methods
finite-difference time domain (FDTD)
Fundamental areas of phenomenology (including applications)
Information, signal and communications theory
Integrated circuits
Mathematical analysis
Mathematical model
method of moments (MoM)
Moment methods
Monte Carlo
Phase change materials
Physics
polynomial chaos
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Time domain analysis
Transmission and modulation (techniques and equipments)
Uncertainty
uncertainty analysis
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Summary: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.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2009.2034645