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Towards the Retrieval of 2-D Vessel Velocities with Single-Platform Spaceborne SAR: Experimental Results with the TerraSAR-X 2-Looks TOPS Mode

Yague-Martinez, Nestor and Prats, Pau and Wollstadt, Steffen and Rodriguez-Cassola, Marc and Sanjuan Ferrer, Maria Jose (2018) Towards the Retrieval of 2-D Vessel Velocities with Single-Platform Spaceborne SAR: Experimental Results with the TerraSAR-X 2-Looks TOPS Mode. In: International Geoscience and Remote Sensing Symposium (IGARSS). IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2018-07-22 - 2018-07-27, Valencia, Spain.

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Abstract

In this contribution, we propose the use of 2-looks Synthetic Aperture Radar data to retrieve azimuth velocities of moving targets with a single platform. The established technique to retrieve velocities of moving targets is Along-track Interferometry (ATI), which provides a measurement of the velocity in the radar line of sight direction by employing two or more phase centers separated in the along-track direction. The use of 2-looks data allows to observe targets at two different instants of time, with a Doppler separation, enabling the retrieval of the target velocity in the azimuth direction. We introduce the 2-looks Terrain Observation by Progressive Scans (TOPS) mode, presenting the performance that can be achieved with the TerraSAR-X system. Moreover, we present experimental results with real data acquired with TerraSAR-X over coastal areas to retrieve velocities of vessels. A validation of the results with Automatic Identification System (AIS) data (ground truth) provides accuracies below 1 m/s.

Item URL in elib:https://elib.dlr.de/119892/
Document Type:Conference or Workshop Item (Speech)
Title:Towards the Retrieval of 2-D Vessel Velocities with Single-Platform Spaceborne SAR: Experimental Results with the TerraSAR-X 2-Looks TOPS Mode
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Yague-Martinez, NestorNestor.Yague (at) dlr.dehttps://orcid.org/0000-0002-4923-8525
Prats, PauPau.Prats (at) dlr.dehttps://orcid.org/0000-0002-7583-2309
Wollstadt, SteffenSteffen.Wollstadt (at) dlr.dehttps://orcid.org/0000-0003-3602-762X
Rodriguez-Cassola, MarcUNSPECIFIEDUNSPECIFIED
Sanjuan Ferrer, Maria JoseMaria.SanjuanFerrer (at) dlr.dehttps://orcid.org/0000-0003-1555-739X
Date:2018
Journal or Publication Title:International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:2-looks TOPS, Synthetic Aperture Radar (SAR), TerraSAR-X, Vessel tracking
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Valencia, Spain
Event Type:international Conference
Event Dates:2018-07-22 - 2018-07-27
Organizer:IEEE
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
Deposited By: Yague-Martinez, Nestor
Deposited On:27 Jun 2018 11:44
Last Modified:08 Nov 2018 08:24

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