Short-pulse electromagnetic scattering from arbitrarily oriented subsurface ordnance

Short-pulse electromagnetic scattering from arbitrarily oriented subsurface ordnance

A rigorous method-of-moments (MoM) analysis is used to model wide-band scattering from general three-dimensional perfectly conducting objects buried in a lossy layered medium. Here, we focus on ordnance buried in a half space (soil). The time-domain fields scattered from a tilted antitank mine are examined in detail as a function of polarization and observation position.

Subsurface electromagnetic induction imaging for unexploded ordnance

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Electromagnetic scattering from short branching vegetation

A polarimetric coherent electromagnetic scattering model for short branching vegetation is developed in this paper. With the realistic structures that reasonably describe the relative positions of the particles, this model is able to consider the coherent effect due to the phase difference between the scattered fields from different particles, and account for the second-order, near-field intera...

An analysis of electromagnetic scattering from finite-width strips

Identification of buried unexploded ordnance from broadband electromagnetic induction data

A procedure is described for computing range and orientation invariant spectral signatures of buried unexploded ordnance (UXO) from electromagnetic induction (EMI) data. The normalized eigenvalues of the magnetic polarizability tensor that characterizes the target response are used as the orientation-invariant spectral signatures. It is shown that the eigenvalues can be normalized with respect ...