Wideband frequency- and time-domain EMI for mine detection

Lawrence Carin, I. J. Won, Dean Keiswetter

Research output: Contribution to journalArticlepeer-review

Abstract

The phenomenology of frequency- and time-domain electromagnetic induction (EMI) is examined in detail, through use of a rigorous electromagnetic scattering model, and through appropriate signal analysis. We demonstrate that both the time- and frequency-domain EMI signatures can be characterized in terms of a few magnetic singularities, thereby significantly reducing the number of features that need be stored for target identification. Further, we examine the aspect-dependent properties of the relative excitation strengths of the magnetic-singularity modes. Finally, we perform a statistical analysis of the relative efficacy of frequency- and time-domain EMI operation, for a class of conducting targets.
Original languageEnglish (US)
Pages (from-to)14-25
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3710
Issue numberI
StatePublished - Jan 1 1999
Externally publishedYes

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