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PU Wei, WU Yuheng, SONG Yue, et al. A scattering feature-enhanced network for SAR deceptive jamming discrimination[J]. Journal of Radars, in press. doi: 10.12000/JR25275
Citation: PU Wei, WU Yuheng, SONG Yue, et al. A scattering feature-enhanced network for SAR deceptive jamming discrimination[J]. Journal of Radars, in press. doi: 10.12000/JR25275

A Scattering Feature-Enhanced Network for SAR Deceptive Jamming Discrimination

DOI: 10.12000/JR25275 CSTR: 32380.14.JR25275
Funds:  The National Natural Science Foundation of China (U25B200901)
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  • Corresponding author: PU Wei, puwei@uestc.edu.cn
  • Received Date: 2025-12-23
  • Rev Recd Date: 2026-05-24
  • Available Online: 2026-06-05
  • Synthetic aperture radar (SAR) enables round-the-clock high-resolution imaging under all weather conditions, thereby playing a vital role in both military domains (e.g., surveillance, reconnaissance, air defense, and missile defense) and civilian domains (e.g., disaster monitoring).. However, advancements in electronic countermeasure technologies have led to the development of radar jammers that generate deceptive jamming with false targets in SAR imagery. This seriously undermines the interpretation of SAR images and real-time decision-making. To tackle these issues, this study proposes a scattering feature–enhanced vision Transformer-based network (SF-ViT) to discriminate deceptive jamming using SAR false targets, which leverages the electromagnetic scattering mechanisms of targets. By targeting the azimuth distribution disparity of echoes caused by the fixed spatial positions of jammers and the scattering feature discrepancy induced by variations in template configurations and signal parameters, the network first highlights the differences between real and false targets in the image domain using a shallow feature enhancement module. Subsequently, it extracts and classifies high-dimensional semantic features through a lightweight hybrid convolutional–ViT network. Experimental validation on the SAR false-target deceptive jamming dataset built in this study indicates that the proposed network attains an average discrimination accuracy of 94.97% under diverse signal-to-noise ratio conditions and requires fewer parameters, making it easy to deploy on edge devices. In addition, ablation experiments demonstrate that the proposed scattering feature enhancement module can be integrated with traditional models, further enhancing the discrimination accuracy of SAR false-target deceptive jamming.

     

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