Paper Info
Title
Robust Clutter Suppression And Ground Moving Target Imaging Method For A Multichannel Sar With High-Squint Angle Mounted On Hypersonic Vehicle
Abstract
This paper investigates a robust clutter suppression and detection of ground moving target (GMT) imaging method for a multichannel synthetic aperture radar (MC-SAR) with high-squint angle mounted on hypersonic vehicle (HSV). A modified coarse-focused method with cubic chirp Fourier transform (CFT) is explored first that permits the coarsely focused imageries to be recovered, thus alleviated the impacts of GMT Doppler ambiguity and range cell migration (RCM). After that, in combination with joint-pixel model, a robust clutter suppression method which enhances the GMT integration, and improving the accuracy of radial speed (RS) recovery by modifying the matching between the beamformer center and GMT, is proposed. Due to that the first-order phase compensation and RS retrieval are predigested, the proposed algorithm has lower the algorithmic complexity. Finally, the feasibility of our proposed method are verified via experimental results based on simulated and real measured data.
Year
DOI
Venue
2021
10.3390/rs13112051
REMOTE SENSING
Keywords
DocType
Volume
chirp Fourier transform (CFT), clutter suppression, ground moving target (GMT), hypersonic vehicle (HSV), parameter estimation, synthetic aperture radar (SAR)
Journal
13
Issue
Citations 
PageRank 
11
1
0.36
References 
Authors
0
4
Name
Order
Citations
PageRank
Jiusheng Han121.06
Yunhe Cao2419.31
Tat-Soon Yeo320.72
Fengfei Wang422.41