Polarimetric Approaches for Persistent Scatterers Interferometry
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http://hdl.handle.net/10045/37745
Títol: | Polarimetric Approaches for Persistent Scatterers Interferometry |
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Autors: | Navarro Sánchez, Víctor Diego | Lopez-Sanchez, Juan M. | Ferro-Famil, Laurent |
Grups d'investigació o GITE: | Señales, Sistemas y Telecomunicación |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal |
Paraules clau: | Persistent scatterers | Polarimetry | Subsidence | Synthetic aperture radar (SAR) interferometry |
Àrees de coneixement: | Teoría de la Señal y Comunicaciones |
Data de publicació: | de març-2014 |
Editor: | IEEE |
Citació bibliogràfica: | IEEE Transactions on Geoscience and Remote Sensing. 2014, 52(3): 1667-1676. doi:10.1109/TGRS.2013.2253111 |
Resum: | In previous works, a general framework to exploit polarimetric diversity to optimize the results of persistent scatterers interferometry (PSI) was presented, but tested only with dual-pol data. In this paper, the performance of these algorithms is assessed using fully polarimetric data, acquired by the Radarsat-2 satellite over the urban area of Barcelona, Spain. In addition, two new highly efficient polarimetric optimization methods, mean intensity polarimetric optimization and joint diagonalization-based polarimetric optimization, are introduced and evaluated. Given the variety of dual-pol configurations provided by current polarimetric satellites, such as TerraSAR-X and Radarsat-2, and the upcoming launch of Sentinel-1, ALOS-2, and Radarsat Constellation Mission, a study has been also carried out to determine the best performing dual-pol configurations for polarimetric PSI. Subsidence maps of the area of study are computed for single-pol, dual-pol, and full-pol data, which show the increase in pixel density with valid deformation results as more polarimetric information is made available. In particular, for full-pol data we get an increase of up to 2.5 times more pixels for coherence-based PSI techniques (degraded resolution), and over four times more for amplitude-based approaches (full resolution), in comparison with single-pol data. Both higher density and quality of pixels yield better results in terms of coverage and accuracy. |
Patrocinadors: | This work was supported in part by the Spanish Ministerio de Economía y Competitividad and European Union FEDER funds under Project TEC2011-28201-C02-02. |
URI: | http://hdl.handle.net/10045/37745 |
ISSN: | 0196-2892 (Print) | 1558-0644 (Online) |
DOI: | 10.1109/TGRS.2013.2253111 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © Copyright 2014 IEEE |
Revisió científica: | si |
Versió de l'editor: | http://dx.doi.org/10.1109/TGRS.2013.2253111 |
Apareix a la col·lecció: | INV - SST - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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2014_Navarro-Sanchez_etal_IEEE-TGRS_final.pdf | Versión final (acceso restringido) | 10,07 MB | Adobe PDF | Obrir Sol·licitar una còpia |
2014_Navarro-Sanchez_etal_IEEE-TGRS.pdf | Versión revisada (acceso abierto) | 40,45 MB | Adobe PDF | Obrir Vista prèvia |
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