[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)
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