Impact of clutter decorrelation on Geosynchronous SAR

Conference: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
06/03/2014 - 06/05/2014 at Berlin, Germany

Proceedings: EUSAR 2014

Pages: 4Language: englishTyp: PDF

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Authors:
Recchia, Andrea; Monti Guarnieri, Andrea (Politecnico di Milano, Italy)
Broquetas Ibars, Antoni; Ruiz Rodon, Josep (Universitat Politecnica de Catalunya, Spain)

Abstract:
We discuss the effects of the clutter on a Geosynchronous SAR system exploiting long integration times (from minutes to hours) to counteract for spread losses and increase azimuth resolution. Only stable targets will be correctly focused whereas unstable targets will spread their energy through the whole image. We derive here a generic model for the clutter energy spreading. Then we assume the Billingsley Intrinsic Clutter Motion model for the clutter power spectrum in order to derive the expected Signal-to-Clutter for a Geosynchronous SAR system.