Fusion and inversion of SAR data to obtain a superresolution image

Authors:
Ali Mohammad-Djafari;Franck Daout;Philippe Fargette
Affiliations:
Laboratoire de signaux et systèmes, UMR, CNRS, SUPELEC, Univ. Paris Sud 11, Gif-sur-Yvette, France;SATIE, ENS Cachan, Université Paris 10, France;DEMR, ONERA, Palaiseau, France
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

Citing 3
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Abstract

The Synthetic Aperture Radar (SAR) data obtained from a single emitter and a single receiver gives information in the Fourier domain of the scene over a line segment whose width is related to the bandwidth of the emitted signal. The mathematical problem of image reconstruction in SAR then becomes a Fourier Synthesis (FS) inverse problem. When there are more than one emitter and/or receiver looking the same scene, the problem becomes fusion and inversion. In this paper we report on a Bayesian inversion framework to obtain a Super Resolution (SR) image doing jointly data fusion and inversion. We applied the proposed method on some synthetic data to compare its performances to other classical methods and on experimental data obtained at ONERA.