Efficient ω- k-algorithm for circular SAR and cylindrical reconstruction areas

Dallinger, A.; Schelkshorn, S.; Detlefsen, J.

We present a novel reconstruction algorithm of ω- k type which suits for wideband circular synthetic aperture data taken in stripmap mode. The proposed algorithm allows to reconstruct an image on a cylindrical surface. The range trajectory is approximated by Taylor Series expansion using only the quadratic terms which limits the angular reconstruction range (cross range). In our case this is not a restriction for the application. Wider areas with respect to cross range can be realized by joining several reconstructed images side by side to build a wider image by means of digital spotlighting.

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Dallinger, A. / Schelkshorn, S. / Detlefsen, J.: Efficient ω-k-algorithm for circular SAR and cylindrical reconstruction areas. 2006. Copernicus Publications.

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