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Performance Evaluation of TanDEM-X Quad-Polarization Products in Bistatic Mode

Bueso Bello, Jose Luis and Prats, Pau and Martone, Michele and Reimann, Jens and Steinbrecher, Ulrich and Rizzoli, Paola (2018) Performance Evaluation of TanDEM-X Quad-Polarization Products in Bistatic Mode. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 11 (3), pp. 787-799. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/JSTARS.2018.2790944 ISSN 1939-1404

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In the TanDEM-X mission, quad-polarization data (HH, HV, VH, and VV-polarization channels) can be acquired at an experimental basis by acquiring images in the dual-receive antenna (DRA) mode. This mode was activated during the so-called TanDEM-X science phase, from October 2014 up to January 2016, serving the science community with a unique dataset for the demonstration of new SAR techniques and applications. Quad-polarization data has been firstly acquired in pursuit monostatic mode and, secondly, in bistatic configuration as well, TanDEM-X is the first spaceborne mission which allows for the acquisition of quad-polarization data in bistatic formation, with across-track baselines varying up to 4 km at the Equator. The current work completes the one presented in [1], where TanDEM-X quad-polarization data, acquired in pursuit monostatic mode only, was analyzed and recommendations were drawn, in order to optimize the acquisition parameters, aiming at improving the final data quality. Such recommendations were then taken into account for the acquisition of quad-polarization data in bistatic configuration, starting from April 2015, and the obtained results are presented in this paper. Investigations have been performed, aiming at monitoring the effective improvement in data quality. For example, we investigated the impact of different system parameters, such as noise equivalent sigma zero (NESZ) or processing bandwidth on the SAR performance, together with their influence on the interferometric SAR (InSAR) performance, assessed in terms of interferometric coherence and relative height error. Finally, we introduce and discuss an experimental acquisition mode, which allows to synthesize a quad-polarization product by combining two simultaneous dual-polarization acquisitions.

Item URL in elib:https://elib.dlr.de/115808/
Document Type:Article
Title:Performance Evaluation of TanDEM-X Quad-Polarization Products in Bistatic Mode
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bueso Bello, Jose LuisUNSPECIFIEDhttps://orcid.org/0000-0003-3464-2186
Prats, PauUNSPECIFIEDhttps://orcid.org/0000-0002-7583-2309
Martone, MicheleUNSPECIFIEDhttps://orcid.org/0000-0002-4601-6599
Reimann, JensUNSPECIFIEDhttps://orcid.org/0000-0002-0650-9073
Rizzoli, PaolaUNSPECIFIEDhttps://orcid.org/0000-0001-9118-2732
Date:8 February 2018
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.1109/JSTARS.2018.2790944
Page Range:pp. 787-799
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Bistatic synthetic aperture radar (SAR), dualreceive antenna (DRA) mode, full polarimetry, SAR interferometry (InSAR), SAR polarimetry.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Microwaves and Radar Institute > SAR Technology
Deposited By: Bueso Bello, Jose Luis
Deposited On:22 Nov 2017 11:10
Last Modified:24 Nov 2020 04:13

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