Comparison between SAR Atmospheric Phase Screens at 30´ by Means of ERS and Envisat Data

Author

Perissin, D. ; Prati, C.

Author_Institution

Politec. di Milano, Milano

Volume

4

fYear

2008

fDate

7-11 July 2008

Abstract

The permanent scatterers (PS) technique is able to estimate atmospheric artifacts that delay the SAR interferometric phase over pointwise targets. In this work, for the first time, the atmospheric phase screen (APS) estimated with ERS data is compared to the APS retrieved with ENVISAT data at 30´ time delay. The goal of the comparison is to add new insights to the phase delay that affects InSAR measurements. Preliminary but interesting real data results have been obtained over the city of Milan.

Keywords

atmospheric techniques; electromagnetic wave scattering; geophysical signal processing; radar interferometry; remote sensing by radar; synthetic aperture radar; ENVISAT; ERS; InSAR measurements; Milan; SAR interferometric phase; atmospheric artifacts; atmospheric phase screen; permanent scatterers technique; phase delay; pointwise targets; Atmospheric measurements; Delay effects; Delay estimation; Electromagnetic scattering; Extraterrestrial measurements; Infrared sensors; Phase estimation; Radar scattering; Spaceborne radar; Synthetic aperture radar interferometry; Atmospheric delay; InSAR; Permanent Scatterers;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International

Conference_Location

Boston, MA

Print_ISBN

978-1-4244-2807-6

Electronic_ISBN

978-1-4244-2808-3

Type

conf

DOI

10.1109/IGARSS.2008.4779782

Filename

4779782