Share Email Print

Proceedings Paper

Latest results obtained in deformation mapping using SAR interferometry
Author(s): Didier Massonnet
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

SAR interferometry is the ideal tool for monitoring deformation fields, provided that they show some kind of spatial continuity and that the surface involved show a sufficient degree of geometric and electromagnetic stability. The technique has been successfully used to measure landslides, with radar image acquisitions separated by up to one and a half years. We how some results obtained by the French Space Agency in these domains. Our procedure makes use of the digital terrain model (DEM) of the area combined with two radar acquisitions. We believe this technique is the most appropriate for small moves detection since there always exists some kind of DEM in a given area. At worse, one could build the DEM using other data. Radar interferometry itself may provide the DEM if a 'motion free' time interval is available. Our studies indicate that the 'phase unwrapping,' often considered as a requirement of the interferometric technique, can be bypassed most of the time. This contributes to making this technique very user-friendly and allows us to hope it will spread widely very soon.

Paper Details

Date Published: 30 December 1994
PDF: 16 pages
Proc. SPIE 2320, Geology from Space, (30 December 1994); doi: 10.1117/12.197290
Show Author Affiliations
Didier Massonnet, CNES (France)

Published in SPIE Proceedings Vol. 2320:
Geology from Space
Eugenio Zilioli, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?