Share Email Print
cover

Proceedings Paper

The PSIG chain: an approach to Persistent Scatterer Interferometry
Author(s): Núria Devanthéry; Michele Crosetto; Oriol Monserrat; María Cuevas-González; Bruno Crippa
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The PSIG procedure is a new approach to Persistent Scatterer Interferometry (PSI), which is implemented in the in-house PSI chain of the Geomatics Division of the CTTC. The PSIG procedure has been successfully tested over urban, rural and vegetated areas using X-band SAR data. This paper briefly describes the main steps of the procedure, mainly focusing on the two key processing steps of the approach. The first one is a selection of Persistent Scatterers (PS) consisting in a candidate Cousin PS (CPS) selection based on a phase similitude criteria that allows a correct phase unwrapping and a phase unwrapping consistency check. The second key element is a 2+1D phase unwrapping algorithm, which consists in a 2D phase unwrapping followed by a 1D phase unwrapping that allows the detection and correction of unwrapping errors. The results of the CPS selection and the 2+1D phase unwrapping obtained using a stack of 28 TerraSAR-X StripMap images over the metropolitan area of Barcelona are shown.

Paper Details

Date Published: 10 October 2014
PDF: 6 pages
Proc. SPIE 9243, SAR Image Analysis, Modeling, and Techniques XIV, 92430K (10 October 2014); doi: 10.1117/12.2066276
Show Author Affiliations
Núria Devanthéry, Ctr. Tecnològic de Telecomunicacions de Catalunya (Spain)
Michele Crosetto, Ctr. Tecnològic de Telecomunicacions de Catalunya (Spain)
Oriol Monserrat, Ctr. Tecnològic de Telecomunicacions de Catalunya (Spain)
María Cuevas-González, Ctr. Tecnològic de Telecomunicacions de Catalunya (Spain)
Bruno Crippa, Univ. of Milan (Italy)


Published in SPIE Proceedings Vol. 9243:
SAR Image Analysis, Modeling, and Techniques XIV
Claudia Notarnicola; Simonetta Paloscia; Nazzareno Pierdicca, Editor(s)

© SPIE. Terms of Use
Back to Top