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Author

Zhen-Xin Cai

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3 papers indexed here

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2026

Robust Radio Frequency Fingerprint Identification via Multi-Scale Complex-Valued Learning and Balanced Domain Alignment

Specific emitter identification (SEI) enables physical-layer authentication of wireless devices by exploiting hardware-induced radio-frequency (RF) fingerprints embedded in received signals. However, existing deep learning–based SEI methods often suffer from limited cross-domain generalization, as models tend to overfi...

Lu-Yao Wang, Zhen-Xin Cai, Fan Wang et al. · 0 citations
2026

UEDF: Uncertainty-Guided Energy-Based Dynamic Fusion for Robust Multimodal UAV Classification

Accurate identification of uncrewed aerial vehicles (UAVs) is crucial to ensure airspace security and effective threat assessment. Traditional UAV classification systems usually rely on single-modal sensing data, which limits their ability to capture the diversity and complementarity of UAV characteristics under differ...

Rui Wang, Siqi Lou, Zhen-Xin Cai et al. · 0 citations
2026

Wavelet-Guided Frequency Decoupling for Channel-Robust UAV RFFI

Uncrewed aerial vehicle (UAV) radio frequency fingerprint identification (RFFI) is a promising technique for noncooperative UAV management. However, models trained under line-of-sight (LOS) conditions suffer from significant performance degradation when deployed in complex non-line-of-sight (NLOS) scenarios due to chan...

Zhen-Xin Cai, Yu Wang, Jin Sha · 0 citations

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