Skip to main content

Enhanced resolution stripmap mode using dynamic metasurface antennas

Publication ,  Journal Article
Pedross-Engel, A; Watts, CM; Smith, DR; Reynolds, MS
Published in: IEEE Transactions on Geoscience and Remote Sensing
July 1, 2017

To maintain sufficient signal-To-noise ratio (SNR) for image reconstruction and image interpretation, conventional synthetic aperture radar (SAR) systems must trade off resolution and scene size. This paper proposes a new SAR mode of operation, which improves resolution while maintaining good SNR and a large scene size. It leverages the unique properties of dynamic metasurface antennas (MSAs) to subsample a large virtual beamwidth utilizing multiple small distinct antenna beams. Due to this parallelization in scene sampling, the constraints on the azimuth sampling rate can be relaxed while maintaining an aliasing-free cross range. Due to the versatile properties of MSAs and their cost effective manufacturing process, this paper proposes SAR systems, which can obtain high resolution images over a wide scene size with lower cost and complexity than competing approaches. Point-spread functions and proof-of-concept SAR simulations are shown to verify this approach. In addition, laboratory experiments using a commercial prototype MSA are presented, which show an improvement of 62% in cross-range resolution of the proposed approach, compared with the crossrange resolution of stripmap mode SAR with the same aperture.

Duke Scholars

Published In

IEEE Transactions on Geoscience and Remote Sensing

DOI

ISSN

0196-2892

Publication Date

July 1, 2017

Volume

55

Issue

7

Start / End Page

3764 / 3772

Related Subject Headings

  • Geological & Geomatics Engineering
  • 40 Engineering
  • 37 Earth sciences
  • 0909 Geomatic Engineering
  • 0906 Electrical and Electronic Engineering
  • 0404 Geophysics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Pedross-Engel, A., Watts, C. M., Smith, D. R., & Reynolds, M. S. (2017). Enhanced resolution stripmap mode using dynamic metasurface antennas. IEEE Transactions on Geoscience and Remote Sensing, 55(7), 3764–3772. https://doi.org/10.1109/TGRS.2017.2679438
Pedross-Engel, A., C. M. Watts, D. R. Smith, and M. S. Reynolds. “Enhanced resolution stripmap mode using dynamic metasurface antennas.” IEEE Transactions on Geoscience and Remote Sensing 55, no. 7 (July 1, 2017): 3764–72. https://doi.org/10.1109/TGRS.2017.2679438.
Pedross-Engel A, Watts CM, Smith DR, Reynolds MS. Enhanced resolution stripmap mode using dynamic metasurface antennas. IEEE Transactions on Geoscience and Remote Sensing. 2017 Jul 1;55(7):3764–72.
Pedross-Engel, A., et al. “Enhanced resolution stripmap mode using dynamic metasurface antennas.” IEEE Transactions on Geoscience and Remote Sensing, vol. 55, no. 7, July 2017, pp. 3764–72. Scopus, doi:10.1109/TGRS.2017.2679438.
Pedross-Engel A, Watts CM, Smith DR, Reynolds MS. Enhanced resolution stripmap mode using dynamic metasurface antennas. IEEE Transactions on Geoscience and Remote Sensing. 2017 Jul 1;55(7):3764–3772.

Published In

IEEE Transactions on Geoscience and Remote Sensing

DOI

ISSN

0196-2892

Publication Date

July 1, 2017

Volume

55

Issue

7

Start / End Page

3764 / 3772

Related Subject Headings

  • Geological & Geomatics Engineering
  • 40 Engineering
  • 37 Earth sciences
  • 0909 Geomatic Engineering
  • 0906 Electrical and Electronic Engineering
  • 0404 Geophysics