Uncertainty analysis of the specific absorption rate induceed in a phantom using a stochastic spectral collocation method - Sorbonne Université Access content directly
Journal Articles Annals of Telecommunications - annales des télécommunications Year : 2011

Uncertainty analysis of the specific absorption rate induceed in a phantom using a stochastic spectral collocation method

Abstract

Uncertainty analysis of human exposure to radio waves is studied with a spectral approach of stochastic collocation methods. This approach allows determining in an efficient way the statistical moments of the output variable, the specific absorption rate, with respect to uncertain input parameters. Polynomial chaos expansions are used for the random output, and the spectral coefficients are determined by projection or regression. These techniques are used with an electromagnetic solver based on a finite difference time domain scheme. The convergence of the statistical moments is analyzed for two case studies. Global sensitivity is also analyzed for the uncertain position of a cellular phone in the close vicinity of a human head model.

Dates and versions

hal-00598503 , version 1 (06-06-2011)

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Ouanes Aiouaz, David Lautru, Man-Faï Wong, Emmanuelle Conil, Azeddine Gati, et al.. Uncertainty analysis of the specific absorption rate induceed in a phantom using a stochastic spectral collocation method. Annals of Telecommunications - annales des télécommunications, 2011, 66 (7 - 8), pp.409 - 418. ⟨10.1007/s12243-011-0255-x⟩. ⟨hal-00598503⟩
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