Communication Dans Un Congrès Année : 2025

Moment-based Characterization of Spatially Distributed Sources in SAR Tomography

Résumé

This paper presents a non-parametric method for 3-D imaging of natural volumes using Synthetic Aperture Radar tomography. This array processing-based technique aims at characterizing a spatially distributed density of incoherent sources, whose shape is imprecisely known. The proposed technique estimates the moments of the reflectivity density using a low-complexity covariance matching approach, and retrieves the mean location, dispersion, and power of the distributed source. Numerical simulations of realistic tomographic scenarios show that the proposed model-free scheme achieves better accuracy than slightly misspecified maximum likelihood estimators, derived from approximately known distribution shapes.

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hal-04991892 , version 1 (14-03-2025)

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  • HAL Id : hal-04991892 , version 1

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Colin Cros, Laurent Ferro-Famil. Moment-based Characterization of Spatially Distributed Sources in SAR Tomography. 33rd European Signal Processing Conference, European Association for Signal Processing, Sep 2025, Palerme, Italy. ⟨hal-04991892⟩
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