Adapting range migration techniques for imaging with metasurface antennas: Analysis and limitations

Laura Pulido Mancera, Thomas Fromenteze, Timothy Sleasman, Michael Boyarsky, Mohammadreza F. Imani, Matthew S. Reynolds, David R. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dynamic metasurface antennas are planar structures that exhibit remarkable capabilities in controlling electromagnetic wave-fronts, advantages which are particularly attractive for microwave imaging. These antennas exhibit strong frequency dispersion and produce diverse radiation patterns. Such behavior presents unique challenges for integration with conventional imaging algorithms. We analyze an adapted version of the range migration algorithm (RMA) for use with dynamic metasurfaces in image reconstruction. Focusing on the the proposed pre-processing step, that ultimately allows a fast processing of the backscattered signal in the spatial frequency domain from which the fast Fourier transform can efficiently reconstruct the scene. Numerical studies illustrate imaging performance using both conventional methods and the adapted RMA, demonstrating that the RMA can reconstruct images with comparable quality in a fraction of the time. In this paper, we demonstrate the capabilities of the algorithm as a fast reconstruction tool, and we analyze the limitations of the presented technique in terms of image quality.

Original languageEnglish (US)
Title of host publicationAlgorithms for Synthetic Aperture Radar Imagery XXIV
EditorsFrederick D. Garber, Edmund Zelnio
PublisherSPIE
ISBN (Electronic)9781510609037
DOIs
StatePublished - 2017
Externally publishedYes
EventAlgorithms for Synthetic Aperture Radar Imagery XXIV 2017 - Anaheim, United States
Duration: Apr 13 2017 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10201
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherAlgorithms for Synthetic Aperture Radar Imagery XXIV 2017
CountryUnited States
CityAnaheim
Period4/13/17 → …

Keywords

  • Metamaterials
  • Microwave Imaging
  • Range Migration Algorithm
  • Synthetic Aperture Radar (SAR)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Adapting range migration techniques for imaging with metasurface antennas: Analysis and limitations'. Together they form a unique fingerprint.

Cite this