A Multiple-Input Multiple-Output Inverse Synthetic Aperture Radar Imaging Method Based on Multidimensional Alternating Direction Method of Multipliers

被引：0
作者：
Deng L. [1 ]
Zhang S. [1 ]
Zhang C. [1 ]
Liu Y. [1 ]
机构：
[1] College of Electronic Science and Technology, National University of Defense Technology, Changsha
来源：
Journal of Radars | 2021年 / 10卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Compressive sensing (cs); Multidimensional alternating direction method of multipliers (md-admm); Multiple-input multiple-output inverse synthetic aperture radar (MIMO-isar);
D O I：
10.12000/JR20132
中图分类号：
学科分类号：
摘要：
The disadvantages of the traditional Inverse Synthetic Aperture Radar (ISAR) imaging method based on Fourier transform include large data storage and long collection time. The Compressive Sensing (CS) theory can use limited data to restore an image with the sparsity of the image, reducing the cost of data collection. However for multidimensional data, the traditional compressive sensing methods need to convert threedimensional data into a one-dimensional vector, causing the storage and calculation burden. Therefore, this study proposes a fast MultiDimensional Alternating Direction Method of Multipliers ((MD-ADMM)) sparse reconstruction method for Multiple-Input Multiple-Output ISAR (MIMO-ISAR) imaging. The CS model based on the tensor signal was established, and the model with the ADMM algorithm was optimized. The measured matrix is decomposed into a tensor modal product, and matrix inversion is replaced by tensor element division, significantly reducing memory consumption and computational burden. Fast ISAR imaging can be achieved by a small amount of data sampling by the proposed method. Compared with other tensor compressed sensing methods, this method has the advantages of stronger robustness, higher image quality, and computational efficiency. The effectiveness of the proposed method can be invalidated by simulated and measured data. © 2021 Institute of Electronics Chinese Academy of Sciences. All rights reserved.
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页码：416 / 431
页数：15
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