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This research proposes a hybrid framework combining hand-crafted micro-motion descriptors with deep learning to distinguish real maritime targets from corner-reflector-array jamming using frequency-agile radar. By fusing statistical features like mean weighted residual with CNN-derived embeddings and an XGBoost classifier, the method demonstrates superior robustness against non-rigid decoys in simulation environments. The work advances signal processing techniques critical for maintaining reliable sensing integrity in contested electromagnetic spectra where AI-driven discrimination is essential.

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Corner Reflector Array Jamming Discrimination Using Multi-Dimensional Micro-Motion Features with Frequency Agile Radar

arXiv28 iulie 20261 min de cititArticolul și perspectiva sunt în engleză.

arXiv:2604.16008v3 Announce Type: replace Abstract: This paper introduces a robust discrimination method for distinguishing real ship targets from corner-reflector-array jamming with frequency-agile radar. The key idea is to exploit the multidimensional micro-motion signatures that separate rigid ships from non-rigid decoys. From Range-Velocity maps we derive two new hand-crafted descriptors-mean weighted residual (MWR) and complementary contrast factor (CCF) and fuse them with deep features learned by a lightweight CNN. An XGBoost classifier then gives the final decision. Extensive simulations show that the hybrid feature set consistently outperforms state-of-the-art alternatives, confirming the superiority of the proposed approach.

Abstract:This paper introduces a robust discrimination method for distinguishing real ship targets from corner-reflector-array jamming with frequency-agile radar. The key idea is to exploit the multidimensional micro-motion signatures that separate rigid ships from non-rigid decoys. From Range-Velocity maps we derive two new hand-crafted descriptors-mean weighted residual (MWR) and complementary contrast factor (CCF) and fuse them with deep features learned by a lightweight CNN. An XGBoost classifier then gives the final decision. Extensive simulations show that the hybrid feature set consistently outperforms state-of-the-art alternatives, confirming the superiority of the proposed approach.

Machine Learning (cs.LG)

arXiv:2604.16008 [cs.LG]

(or arXiv:2604.16008v3 [cs.LG] for this version)

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