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Inter-Comparability of Radiometric Performance between Sentinel-1A and Sentinel-1B

Schmidt, Kersten and Schwerdt, Marco and Miranda, Nuno (2021) Inter-Comparability of Radiometric Performance between Sentinel-1A and Sentinel-1B. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR. European Conference on Synthetic Aperture Radar (EUSAR), 2021-03-29 - 2021-04-01, Leipzig, Germany. ISSN 2197-4403.

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Abstract

The study shows that Sentinel-1B is more sensitive for low backscatter due to higher TX power and higher RX pattern gain compared to Sentinel-1A. Therefore targets covering a wide backscatter range are compared. While for point targets and medium backscatter areas (e.g. rainforest) no significant radiometric differences are found, the NEBZ within calm water is lower for Sentinel-1B compared to Sentinel-1A by about 1.4 dB. By evaluating transponder recordings, the SAR transmit power is found to be higher for Sentinel-1B compared to Sentinel-1A by about 0.7 dB. These different radiometric performances are present although both SAR systems are well calibrated.

Item URL in elib:https://elib.dlr.de/134058/
Document Type:Conference or Workshop Item (Poster)
Title:Inter-Comparability of Radiometric Performance between Sentinel-1A and Sentinel-1B
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schmidt, KerstenKersten.Schmidt (at) dlr.dehttps://orcid.org/0000-0001-7896-908X
Schwerdt, MarcoMarco.Schwerdt (at) dlr.dehttps://orcid.org/0000-0002-0045-3726
Miranda, NunoEuropean Space Agency/ESRIN, Frascati, ItalyUNSPECIFIED
Date:2021
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
ISSN:2197-4403
Status:Accepted
Keywords:Radiometric Accuracy, Sentinel-1, SAR, Point target Analysis, NESZ, radiometric noise
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Leipzig, Germany
Event Type:international Conference
Event Dates:2021-03-29 - 2021-04-01
Organizer:VDE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - SAR missions
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Schmidt, Dr. Kersten
Deposited On:10 Feb 2020 09:57
Last Modified:29 Mar 2021 22:37

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