期刊
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
卷 32, 期 1, 页码 188-202出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNNLS.2020.2978017
关键词
Tensors; Synthetic aperture radar; Radar polarimetry; Radar imaging; Electron tubes; Imaging; Alternating minimization (AM); imaging; low rank; tensor recovery; video synthetic aperture radar (SAR)
类别
资金
- National Natural Science Foundation of China [61401078, 61771113]
- Newton International Fellowship from the Royal Society
In this article, the authors study the low-rank tensor recovery problem of video synthetic aperture radar (SAR) imaging, which reduces the data amount by exploiting the redundancy property of multi-frame video SAR data, achieving similar or better imaging performance. The proposed method compares favorably with several state-of-the-art video SAR imaging algorithms in terms of data sample requirements and imaging quality.
Due to its ability of forming continuous images for a ground scene of interest, the video synthetic aperture radar (SAR) has been studied in recent years. However, as video SAR needs to reconstruct many frames, the data are of enormous amount and the imaging process is of large computational cost, which limits its applications. In this article, we exploit the redundancy property of multiframe video SAR data, which can be modeled as low-rank tensor, and formulate the video SAR imaging process as a low-rank tensor recovery problem, which is solved by an efficient alternating minimization method. We empirically compare the proposed method with several state-of-the-art video SAR imaging algorithms, including the fast back-projection (FBP) method and the compressed sensing (CS)-based method. Experiments on both simulated and real data show that the proposed low-rank tensor-based method requires significantly less amount of data samples while achieving similar or better imaging performance.
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