Author

Gábor Fodor

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Preprint Sep 2026

A Mathematical Theory of Near-Field Super-Resolution

Finite-aperture near-field sensing leads to a super-resolution geometry fundamentally different from the translation-invariant Fourier setting. In the Fresnel regime, wavefront curvature introduces a range-dependent quadratic aperture phase, so distinguishability is governed by incomplete quadratic exponential sums of...

Sajad Daei, Gábor Fodor, M. Skoglund · 0 citations

Preprint Sep 2026

Q-SPARSE: Quantum Subspace Projection for Near-Field Angle-Range Spectrum Estimation

Near-field wavefront curvature enables joint angle-range localization, but exploiting it entails repeated covariance-eigenspace tests over a two-dimensional spherical manifold. We propose a quantum subspace-projection algorithm (Q-SPARSE) for super-resolution estimation of parameters in the near field, employing spectr...

Mostafizur Rahaman Laskar, Sajad Daei, Gábor Fodor et al. · 0 citations

Preprint Sep 2026

Rethinking Channel Charting: A Graph Perspective

Channel charting is a self-supervised framework that learns low-dimensional spatial representations from high-dimensional channel state information. We revisit channel charting from a graph-theoretic perspective, and show that the position-diffusion objective is equivalent to a graph Laplacian smoothness functional. We...

Yinri Jin, Yu-Xin Zhao, Dan-Dan Hao et al. · 0 citations