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Estimation of azimuth phase undulations with multisquint processing in airborne interferometric SAR images

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2 Author(s)
Prats, P. ; Dept. of Signal Theor. & Commun., Univ. Politecnica de Catalunya, Barcelona, Spain ; Mallorqui, J.J.

Presents a technique to detect and correct phase errors appearing in interferometric airborne synthetic aperture radar (SAR) systems due to the lack of precision in the navigation system. The technique is based on a multisquint processing approach, i.e. by processing the same image pairs with different squint angles we can combine the information of different interferograms to obtain the desired phase correction. Airborne single-pass interferometric data from the Deutsches Zentrum für Luft- und Raumfahrt (DLR) experimental airborne SAR is used to validate the method.

Published in:

Geoscience and Remote Sensing, IEEE Transactions on  (Volume:41 ,  Issue: 6 )

Date of Publication:

June 2003

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