Spatial Sampling in Monostatic Radar Imaging

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Abstract
This letter deals with microwave imaging via a migration-like inversion method. The aim is the determination of a spatial sampling scheme which allows to collect as low as possible spatial measurements and to preserve the point-spread function features and hence, the achievable performance in the reconstructions. To keep math simple and to more easily illustrate the theoretical arguments, the study is developed for a 2-D monostatic scalar configuration and a homogeneous background medium. It is shown that the new sampling scheme requires much fewer samples than the standard literature results and that the samples must be nonuniformly deployed across the measurement domain.
Funding Information
  • Universitá della Campania Luigi Vanvitelli through the Programma V:ALERE 2020
  • Project Efficient Probe pOsitioning for Near-fIeld Measurement technIques (B66J20000680005)

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