3D Urban Remote Sensing using Spectral Analysis Techniques applied to L-Band Dual-baseline POL-InSAR Images

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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Sauer, S.; Ferro-Famil, L.; Pottier, E. (University of Rennes 1, IETR Laboratory, SAPHIR Team, Bat. 11D, 263 Avenue General Leclerc, CS 74205, 35042, Rennes Cedex, France)
Reigber, A. (German Aerospace Center, Microwaves and Radar Institute, Oberpfaffenhofen-Wessling, Germany)

This paper generalizes a multibaseline interferometric SAR signal model to the polarimetric configuration. Based on this formulation, two high-performance array signal processing techniques are adapted to analyze multibaseline POL-InSAR observations. These new methods enhance the height estimation of scatterers by calculating optimal polarization combi- nations and allow the determination of their physical characteristics. Applying the algorithms to urban environments, the building layover problem is resolved by means of polarimetric dual-baseline InSAR measurements: Up to two compo- nents within one azimuth-range resolution cell are separated. The techniques are tested using dual-baseline Pol-InSAR data acquired by DLR’s E-SAR system over Dresden city.