Sentinel-1 azimuth subbanding for multiple aperture interferometry - Test case over the Roi Baudoin ice shelf, east Antartica
peer reviewed 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 f...
Published in: | 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS |
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Main Authors: | , , , , , |
Format: | Conference Object |
Language: | English |
Published: |
2021
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Subjects: | |
Online Access: | https://orbi.uliege.be/handle/2268/262217 https://orbi.uliege.be/bitstream/2268/262217/1/Manuscript_IGARSS2021_MK.pdf https://doi.org/10.1109/IGARSS47720.2021.9553522 |
Summary: | peer reviewed 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. MIMO (Monitoring melt where Ice Meets Ocean); SMAIAD (Sentinel-1 Multiple Aperture Interferometry for Azimuth Displacement Retrieval) |
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