Assessment of physical limitations of High Resolution on targets at X-band from Circular SAR experiments

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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Cantalloube, Hubert; Koeniguer, Elise Colin (ONERA, France)

In this paper, we confirm the feasibility of circular SAR images using real SAR data in both modes: two-dimensional imaging for different view angles, or three dimensional imaging mode. This new imaging possibility demonstrates clearly the strong anisotropic behavior of the main scatterers at X-band. This proves both the limitations of the autofocus tech- niques base on tracking on isotropic strong echoes for very high resolution images, and the impossibility to recover a three dimensional content by this method at X-band.