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Low-Complexity 3D InISAR Imaging Using a Compressive Hardware Device and a Single Receiver.

Mor Diama Lo1, Matthieu Davy1, Laurent Ferro-Famil2,3

  • 1IETR, University of Rennes 1, 35000 Rennes, France.

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|August 12, 2022
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Summary
This summary is machine-generated.

This study introduces a novel Interferometric Inverse SAR (ISAR) system using a chaotic cavity for 3D imaging. This approach significantly reduces hardware complexity for high-resolution radar systems.

Keywords:
ISARcompressive devicecomputational imaginginterferometric ISARradar

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Area of Science:

  • Radar Systems Engineering
  • Signal Processing
  • Electromagnetics

Background:

  • Interferometric Inverse SAR (ISAR) systems enable 3D imaging of targets.
  • Traditional multi-channel ISAR systems require complex and expensive hardware.

Purpose of the Study:

  • To propose a low-complexity hardware solution for multi-channel ISAR acquisition.
  • To demonstrate a compressed sensing approach for 3D ISAR imaging.

Main Methods:

  • Utilizing a single receiver with a hardware compressive device based on a chaotic cavity.
  • Multiplexing signals from different antennas in the spectral domain using the chaotic cavity.
  • Encoding radar responses and retrieving them by solving an inverse problem with the cavity's transfer matrix.

Main Results:

  • Demonstrated the applicability of the compressed sensing approach for 3D imaging of non-cooperative targets.
  • Validated the method using both simulations and experimental measurements.
  • Successfully encoded and retrieved radar responses using the chaotic cavity.

Conclusions:

  • The proposed method significantly reduces hardware complexity for high-resolution ISAR systems.
  • This technique offers new perspectives for developing more cost-effective ISAR solutions.
  • The chaotic cavity-based compressed sensing approach is effective for 3D ISAR imaging.