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22 July 2021
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Sentinel-1 azimuth subbanding for multiple aperture interferometry - Test case over the Roi Baudoin ice shelf, east Antartica
Kirkove, Murielle  ; Glaude, Quentin  ; De Rauw, Dominique  et al.
2021 • In 2021 IGARSS: IEEE International Geoscience & Remote Sensing Symposium. Proceedings : July 12-16, 2021, Brussels (Belgium)
Peer reviewed
 

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Keywords :
Multiple Aperture Interferometry; Split-band; Sentinel-1; Ice Shelf
Abstract :
[en] As an extension of Synthetic Aperture Radar Interferom- etry, Multiple Aperture Interferometry (MAI) is a spectral diversity technique that allows the determination of azimuth displace- ments from phase shift measurements. This is made possi- ble through the creation of backward- and forward-looking Single-Look-Complex (SLC) data. Then, the phase differ- ence between the backward and forward-looking interfero- gram is translated into a displacement. Using SLC data, MAI requires a proper azimuth splitband operator. Different tech- niques exist to split the azimuth band, but they are often too briefly described in the MAI literature. In this conference pa- per, we analyze the signal properties of the Sentinel-1 TOPS acquisition mode and define an azimuth subbanding proto- col. In particular, we look at the role of de-apodization and apodization in the band filtering operation. We focus our anal- ysis on Sentinel-1 data in Interferometric Wideswath mode over the Roi Baudouin Ice Shelf, East Antarctica.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Kirkove, Murielle ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Glaude, Quentin ;  Université de Liège - ULiège > STAR
De Rauw, Dominique  ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Barbier, Christian ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Pattyn, Franck;  Université Libre de Bruxelles, Bruxelles, Belgium > Laboratory of Glaciology
Orban, Anne ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Sentinel-1 azimuth subbanding for multiple aperture interferometry - Test case over the Roi Baudoin ice shelf, east Antartica
Publication date :
13 July 2021
Event name :
2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event date :
from 12-07-2021 to 16-07-2021
Audience :
International
Main work title :
2021 IGARSS: IEEE International Geoscience & Remote Sensing Symposium. Proceedings : July 12-16, 2021, Brussels (Belgium)
Peer reviewed :
Peer reviewed
Name of the research project :
MIMO (Monitoring melt where Ice Meets Ocean); SMAIAD (Sentinel-1 Multiple Aperture Interferometry for Azimuth Displacement Retrieval)
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture
Belgian Science Policy (BELSPO)
Commentary :
framework of the

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