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Towards UAV-Based Ultra-Wideband Multi-Baseline SAR Interferometry

Mustieles Pérez, Victor and Kim, Sumin and Krieger, Gerhard and Villano, Michelangelo and Bonfert, Christina (2023) Towards UAV-Based Ultra-Wideband Multi-Baseline SAR Interferometry. European Radar Conference (EuRAD), 2023-09-20 - 2023-09-22, Berlin, Germany.

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Unmanned Aerial Vehicle (UAV)-based synthetic aperture radar (SAR) systems enable very accurate and cost-effective monitoring of local areas with unprecedentedly short revisit intervals. This paper discusses specific aspects that arise in the context of UAV-based multi-baseline SAR interferometry (InSAR) for the generation of digital elevation models (DEMs). UAV-based SAR systems are often characterized by a large fractional bandwidth, thus the common narrowband spaceborne approximations yield inaccurate predictions for the geometric decorrelation and the critical baseline. A new formulation is proposed and validated by simulation. Based on the theoretical analyses, a multi-baseline InSAR experiment is planned. The DEM performance analysis shows that large baselines enable height accuracies in the sub-decimeter range, where geometric and volume decorrelation become the limiting factors. This paves the way to height measurements with unprecedented accuracy for multiple applications.

Item URL in elib:https://elib.dlr.de/196112/
Document Type:Conference or Workshop Item (Speech)
Title:Towards UAV-Based Ultra-Wideband Multi-Baseline SAR Interferometry
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Mustieles Pérez, VictorUNSPECIFIEDhttps://orcid.org/0009-0001-5186-3899UNSPECIFIED
Kim, SuminUNSPECIFIEDhttps://orcid.org/0000-0002-4389-0221UNSPECIFIED
Krieger, GerhardUNSPECIFIEDhttps://orcid.org/0000-0002-4548-0285UNSPECIFIED
Villano, MichelangeloUNSPECIFIEDhttps://orcid.org/0000-0002-1769-6927UNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:cooperative SAR, interferometry, multistatic SAR, SAR, UAV
Event Title:European Radar Conference (EuRAD)
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:2023-09-20 - 2023-09-22
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 > Radar Concepts
Deposited By: Mustieles Pérez, Victor
Deposited On:31 Jul 2023 08:51
Last Modified:31 Jul 2023 08:51

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