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arXiv · 2511.19805

Latent-space metrics for Complex-Valued VAE out-of-distribution detection under radar clutter

Y. A. Rouzoumka·E. Terreaux·C. Morisseau·J. -P. Ovarlez·C. Ren
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Abstract

We investigate complex-valued Variational AutoEncoders (CVAE) for radar Out-Of-Distribution (OOD) detection in complex radar environments. We proposed several detection metrics: the reconstruction error of CVAE (CVAE-MSE), the latent-based scores (Mahalanobis, Kullback-Leibler divergence (KLD)), and compared their performance against the classical ANMF-Tyler detector (ANMF-FP). The performance of all these detectors is analyzed on synthetic and experimental radar data, showing the advantages and the weaknesses of each detector.

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Y. A. Rouzoumka, E. Terreaux, C. Morisseau, J. -P. Ovarlez, C. Ren. 2025-11-25. Latent-space metrics for Complex-Valued VAE out-of-distribution detection under radar clutter. https://arxiv.org/abs/2511.19805

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