Microwave Imaging Using Indirect Holographic Techniques

David Smith, Okan Yurduseven, Bryan Livingstone, Vladimir Schejbal

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

This work describes how indirect holographic techniques, previously applied to the determination of antenna radiation patterns, can be adapted for the imaging of passive objects. It provides details of how complex scattered field values can be obtained in a simple and inexpensive manner from sampled scalar intensity measurements taken over a single scanning aperture. This work provides a brief outline of the basic theory of indirect microwave holography, and how the transformation of the holographic intensity pattern into the Fourier domain enables the isolation of the terms required for complex field reconstruction to be isolated from the remaining terms. The work is supported by a range of experimental results, illustrating the reconstructed complex fields for a number of simple test objects. Back-propagation techniques have also been included to reconstruct complex fields at the position of the scattering objects.
Original languageEnglish
Pages (from-to)104-117
JournalIEEE Antennas and Propagation Magazine
Volume56
Issue number1
DOIs
Publication statusPublished - Feb 2014
Externally publishedYes

Keywords

  • Holography
  • Imaging
  • Imaging techniques

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