NDLI: Advanced D-InSAR techniques applied to a time series of airborne SAR data

Content Provider	IEEE Xplore Digital Library
Author	Prats, P. Scheiber, R. Moreira, A. Reigber, A. Mallorqui, J.J.
Copyright Year	2007
Description	Author affiliation: German Aerosp. Center (DLR), Wessling (Prats, P.; Scheiber, R.; Moreira, A.)
Abstract	This paper presents airborne differential SAR results using a stack of 14 images, which were acquired by the experimental SAR (E-SAR) system of the German Aerospace Center during a time span of only two and a half hours. An advanced differential technique is used to retrieve the error in the digital elevation model and the temporal evolution of the deformation for every coherent pixel in the image. The two main limitations in airborne SAR processing are analyzed, namely the existence of residual motion errors (inaccuracies in the navigation system in the order of 1-5 cm), and the accommodation of the topography and the aperture during processing. The SAR focusing chain to process the data is also presented, together with the modifications in the differential processor to deal with the remaining baseline error. The detected deformation of a corner reflector and of several agricultural fields allows validating the proposed techniques.
Starting Page	4874
Ending Page	4877
File Size	1188217
Page Count	4
File Format	PDF
ISBN	9781424412112
DOI	10.1109/IGARSS.2007.4423953
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-23
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motion compensation Interferometry Synthetic aperture radar Surfaces Focusing Remote sensing Spaceborne radar Layout Laboratories Computer vision
Content Type	Text
Resource Type	Article

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