Imaging for a Forward Scanning Automotive Synthetic Aperture Radar

In this paper, we propose a forward scanning synthetic aperture radar methodology for a forward-looking automotive (low-terahertz) radar, which combines scene scanning with synthetic aperture processing, resulting in enhanced angular resolution and improved imaging. We propose two algorithms, first,...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 2019-06, Vol.55 (3), p.1420-1434
Main Authors: Gishkori, Shahzad, Daniel, Liam, Gashinova, Marina, Mulgrew, Bernard
Format: Article
Language:English
Subjects:
Algorithms
Angular resolution
angular resolution (AR)
Apertures
Automotive (Auto-) synthetic aperture radar (SAR)
back-projection (BP)
compressed sensing (CS)
Computer simulation
forward-looking (FL) SAR
Imaging
Projection algorithms
Radar antennas
Radar imaging
Scanning
Synthetic aperture radar
terahertz (THz)
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Summary:In this paper, we propose a forward scanning synthetic aperture radar methodology for a forward-looking automotive (low-terahertz) radar, which combines scene scanning with synthetic aperture processing, resulting in enhanced angular resolution and improved imaging. We propose two algorithms, first, a modified back-projection (BP) algorithm and, second, a compressed sensing-based BP algorithm. We suggest techniques to reduce computational complexity of the proposed algorithms. Results of simulation and real-data experiments corroborate the validity of our proposed methodology and algorithms.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.2018.2871436