A KU-band SAR mission concept for ocean surface current measurement using dual beam ATI and hybrid polarization

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A KU-band SAR mission concept for ocean surface current measurement using dual beam ATI and hybrid polarization

Conference Paper (2015)

Author(s)

Steffen Wollstadt (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Paco Lopez-Dekker (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Francesco De Zan (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Marwan Younis (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Richard E. Danielson (Nansen Environmental and Remote Sensing Center)

Volker Tesmer (OHB System AG)

Luis Martins Camelo (Dettwiler and Associates (MDA)

Affiliation

External organisation

SAR ATI DBF Dual-beam interferometry Ocean current measurement Space-borne mission

DOI related publication

https://doi.org/10.1109/IGARSS.2015.7325992 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:1030991e-99f8-4167-bc88-03ef3f8f16cb

More Info

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Publication Year

2015

Language

English

Affiliation

External organisation

Volume number

2015-November

Article number

7325992

Pages (from-to)

1219-1222

ISBN (electronic)

9781479979295

Event

2015 IEEE international geoscience and remote sensing symposium, IGARSS 2015, Milan, Italy (2015-07-26 - 2015-07-31), Piscataway, NJ, USA, Milan, Italy

Downloads counter

215

Abstract

This paper presents a spaceborne SAR mission concept in Ku-band for the measurement of the two-dimensional ocean surface current. The measurement concept is based on dual-beam along-track interferometry, which requires two highly squinted antennas each looking simultaneously in fore and aft direction. A single side-looking geometry and a ScanSAR imaging mode is chosen to complete the observational concept in order to achieve the requirements on revisit-time and coverage. The applied hybrid polarization is intended to increase the information level about different ocean scattering mechanisms. Furthermore a methodology of instrument requirement derivation is briefly discussed, ensuring the ocean current measurement accuracy requirements. Finally the instrument concept, including digital beamforming, and the SAR performance are presented.