Few Samples of SAR Automatic Target Recognition Based on Enhanced-Shape CNN

Mengmeng Huang, Fang Liu, Xianfa Meng and Naeem Jan

Journal of Mathematics, 2021, vol. 2021, 1-16

Abstract: Synthetic Aperture Radar (SAR), as one of the important and significant methods for obtaining target characteristics in the field of remote sensing, has been applied to many fields including intelligence search, topographic surveying, mapping, and geological survey. In SAR field, the SAR automatic target recognition (SAR ATR) is a significant issue. However, on the other hand, it also has high application value. The development of deep learning has enabled it to be applied to SAR ATR. Some researchers point out that existing convolutional neural network (CNN) paid more attention to texture information, which is often not as good as shape information. Wherefore, this study designs the enhanced-shape CNN, which enhances the target shape at the input. Further, it uses an improved attention module, so that the network can highlight target shape in SAR images. Aiming at the problem of the small scale of the existing SAR data set, a small sample experiment is conducted. Enhanced-shape CNN achieved a recognition rate of 99.29% when trained on the full training set, while it is 89.93% on the one-eighth training data set.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jjmath:9141023

DOI: 10.1155/2021/9141023

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