A fast stroud-based collocation method for statistically characterizing EMI/EMC phenomena on complex platforms

Hakan Baǧi*, Abdulkadir C. Yücel, Jan S. Hesthaven, Eric Michielssen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

A fast stochastic collocation method for statistically characterizing electromagnetic interference and compatibility (EMI/EMC) phenomena on electrically large and loaded platforms is presented. Uncertainties in electromagnetic excitations and/or system geometries and configurations are parameterized in terms of random variables having normal or beta probability density functions. A fast time-domain integral-equation-based field-cable-circuit simulator is used to perform deterministic EMI/EMC simulations for excitations and/or system geometries and configurations specified by Stroud integration rules. Outputs of these simulations then are processed to compute averages and standard deviations of pertinent observables. The proposed Stroud-based collocation method requires far fewer deterministic simulations than Monte Carlo or tensor-product integrators. To demonstrate the accuracy, efficiency, and practicality of the proposed method, it is used to statistically characterize coupled voltages at the feed pins of cable-interconnected and shielded computer cards as well as the terminals of cables situated inside the bay of an airplane cockpit.

Original languageEnglish (US)
Pages (from-to)301-311
Number of pages11
JournalIEEE Transactions on Electromagnetic Compatibility
Volume51
Issue number2
DOIs
StatePublished - 2009

Bibliographical note

Funding Information:
Manuscript received September 24, 2008; revised January 21, 2009. This work was supported in part by the AFOSR under Grant MURI F014432051936, in part by the National Science Foundation (NSF) under Grant DMS 0713771, and in part by the Navy under STTR contract N68335-08-C-0230 arranged by Dr. Oliver Allen.

Keywords

  • Electromagnetic coupling
  • Electromagnetic interference and compatibility (EMI/EMC)
  • Fast solvers
  • Hybrid simulators
  • Stochastic collocation
  • Stroud integration rules
  • Time-domain integral equations

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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