Advanced Differential SAR Interferometric Techniques Applied to Airborne Data

Conference: EUSAR 2006 - 6th European Conference on Synthetic Aperture Radar
05/16/2006 - 05/18/2006 at Dresden, Germany

Proceedings: EUSAR 2006

Pages: 4Language: englishTyp: PDF

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Prats, Pau; Blanco, Pablo; Mallorqui, Jordi J. (Universitat Politècnica de Catalunya, Department of Signal Theory and Communications, Barcelona, Spain)
Prats, Pau (Universitat Autònoma de Barcelona, Dept. of Telecommunications and Systems Engineering, Bellaterra, Spain)
Reigber, Andreas (Berlin University of Technology, Computer Vision and Remote Sensing Group, Berlin, Germany)
Moreira, Alberto (German Aerospace Center, Microwave and Radar Institute, Oberpfaffenhofen, Germany)

This paper presents airborne DInSAR results using a stack of 14 images, acquired by the E-SAR system of DLR during a time span of only three hours and fifteen minutes. An advanced differential technique is used in order to retrieve the error in the digital elevation model (DEM) and the temporal evolution of the deformation for every coherent pixel in the image. Furthermore, some modifications in the differential processing chain are included in order to deal with the existence of the so-called residual motion errors, which play a similar role as the atmospheric artifacts in the spaceborne case. The detected deformation of a corner reflector and of some agricultural fields allows to validate the proposed techniques to measure deformation phenomena with an airborne platform.