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Technology demonstration of Ka-band digitally-beamformed radar for ice topography mapping

  • Author(s): Sadowy, G
  • Heavey, B
  • Moller, D
  • Rignot, E
  • Zawadzki, M
  • Rengarajan, S
  • et al.
Abstract

GLISTIN (Glacier and Land Ice Surface Topography Interferometer) is a spaceborne interferometric synthetic aperture radar for topographic mapping of ice sheets and glaciers. GLISTIN will collect ice topography measurements over a wide swath with sub-seasonal repeat intervals using a Ka-Band digitally-beamformed antenna. This paper will give an overview of the system design and key technology demonstrations including a 1m × 1m digitally-beamformed Ka-band waveguide slot antenna with integrated digital receivers. We will also detail the experimental scenario that we will use to demonstrate both the beamforming and interferometric performance of this system. © 2007 IEEE.

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