Chirp-Z Transform Based Interpolator Adaptation for Range Migration Correction

Conference: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
06/02/2008 - 06/05/2008 at Friedrichshafen, Germany

Proceedings: EUSAR 2008

Pages: 4Language: englishTyp: PDF

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Derauw, Dominique; Barbier, Christian (Centre Spatial de Liège, Belgium)

In the frame of a Belgo-Argentinean agreement, we developed a prototype EnviSAT SAR processor. Using our background in SAR interferometry, we adapt our Chirp-Z transform based interpolator, used in image registration, to perform range migration correction. This adaptation leads to a Range-Doppler SAR focusing processor offering potentially scalable range sampling rate. In this paper, we describe the original interpolator, we present its adaptation and implementation inside Range-Doppler focusing process.