GPU acceleration of a fast phase compensation algorithm in inverse synthetic aperture radar
GPU acceleration of a fast phase compensation algorithm in inverse synthetic aperture radar
- Author(s): Y. Lu 1 ; Y. Zhang 1 ; J. Yang 2
- DOI: 10.1049/icp.2021.0570
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- Author(s): Y. Lu 1 ; Y. Zhang 1 ; J. Yang 2
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View affiliations
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Affiliations:
1:
Science and Technology on Automatic Target Recognition Laboratory , National University of Defense Technology , Changsha 410073 , China ;
2: School of electronic engineering , Xidian University , Xi’an 710071 , China
Source:
IET International Radar Conference (IET IRC 2020),
2021
p.
257 – 263
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Affiliations:
1:
Science and Technology on Automatic Target Recognition Laboratory , National University of Defense Technology , Changsha 410073 , China ;
- Conference: IET International Radar Conference (IET IRC 2020)
- DOI: 10.1049/icp.2021.0570
- ISBN: 978-1-83953-540-6
- Location: Online Conference
- Conference date: 04-06 November 2020
- Format: PDF
Phase compensation is an essential part of inverse synthetic aperture radar imaging. Minimum entropy-based phase compensation methods have been widely applied due to their robustness under low signal-to-noise ratio (SNR) situations. However, these methods suffer from huge computation complexity and therefore, can be hardly used in real-time imaging situations. In this paper, a novel real-time phase compensation method combining Doppler centroid tracking (DCT), prominent range bins extraction, and fast minimum entropy phase compensation (FMEPC) is proposed. To achieve high efficiency, the parallel version of the proposed algorithm is implemented on Graphic Processing Unit (GPU). Experiments based on real-measured data show that almost 10 times speed-up can be realized.
Inspec keywords: radar imaging; computational complexity; radar tracking; graphics processing units; Doppler radar; entropy; minimum entropy methods; synthetic aperture radar
Subjects: Radar theory; Microprocessors and microcomputers; Optical, image and video signal processing; Radar equipment, systems and applications