Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8447
Authors: Chaabane, Ferdaous* 
Avallone, Antonio* 
Tupin, Florence* 
Briole, Pierre* 
Trouvé, Emmanuel* 
Trembley, Yvan* 
Nicolas, Jean-Marie* 
Maitre, Henri* 
Title: IMPROVEMENT OF THE TROPOSPHERIC CORRECTION BY ADAPTED PHASE FILTERING
Issue Date: 2002
URI: http://hdl.handle.net/2122/8447
Keywords: INSAR
Subject Classification04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy 
Abstract: Tropospheric inhomogeneities can form a major error source in DinSAR (Differential SAR Interferometry) measurements used in slow deformation monitoring. Previous studies introduced techniques to correct these artefacts. In [1] they propose to evaluate and correct tropospheric effects directly from raw differential interferograms by estimating the phase/altitude correlation. Since the wrapped phase noise in these interferograms influences the correction of tropospheric artefacts its removal is mandatory. In this paper, we aim to show that adapted wrapped phase filtering greatly improves the retrieval of tropospheric effects. The filtered interferograms are then used to model these artefacts. Filtered and unfiltered results are compared to quantify the improvement.
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