Title :
Phase statistics and quality evaluation of deformation maps with multiple-image differential interferometry
Author :
Mallorqui, J.J. ; Blanco, P. ; Broquetas, A. ; Mora, O.
Author_Institution :
Dept. of Signal Theor. & Commun., Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
This paper presents a closed formulation to evaluate the quality of terrain deformation maps obtained with multi-image differential interferometry. The analytical formulation, based on the application of the asymptotic covariance matrix, that propagates the interferogram coherences to the linear deformation and DEM error accuracies when using a stack of interferograms, is developed and validated with real data from the ERS satellites.
Keywords :
interferometry; remote sensing; terrain mapping; DEM error; ERS satellites; European Remote Sensing; deformation maps; interferogram coherences; interferograms; multiple image differential interferometry; phase statistics; quality evaluation; terrain maps; Coherence; Covariance matrix; Decorrelation; Error analysis; Geology; Interferometry; Risk management; Satellites; Statistics; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1295510
