Globally convergent and adaptive finite element methods in imaging of buried objects from experimental backscattering radar measurements

• We consider a two-stage numerical procedure for imaging of objects buried in dry sand using time-dependent backscattering experimental radar measurements. These measurements are generated by a single point source of electric pulses and are collected using a microwave scattering facility which was built at the University of North Carolina at Charlotte. Our imaging problem is formulated as the inverse problem of the reconstruction of the spatially distributed dielectric constant, which is an unknown coefficient in Maxwell’s equations.

Ämnesord

NATURVETENSKAP  -- Matematik (hsv//swe)

NATURAL SCIENCES  -- Mathematics (hsv//eng)

Nyckelord

Globally convergent algorithm

Refractive indices

Adaptive finite element method

Inverse scattering

Inverse scattering; Refractive indices; Globally convergent algorithm; Adaptive finite element method

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