Wrapped Staring Spotlight SAR

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Wrapped Staring Spotlight SAR

Journal Article (2016)

Author(s)

Josef Mittermayer (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Thomas Kraus (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

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

Pau Prats-Iraola (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Gerhard Krieger (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Alberto Moreira (Deutsches Zentrum für Luft- und Raumfahrt (DLR))

Synthetic aperture radar (SAR) Look-Normalized Pattern Correction (LNPC) Wrapped staring spotlight (WSS) Ω-weighting

DOI related publication

https://doi.org/10.1109/TGRS.2016.2571340 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:b83330e4-236d-4e58-84b0-2a5d4542a091

More Info

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Publication Year

2016

Language

English

Journal title

IEEE Transactions on Geoscience and Remote Sensing

Issue number

10

Volume number

54

Article number

7515225

Pages (from-to)

5745-5764

Downloads counter

181

Abstract

This paper proposes the wrapped staring spotlight (WSS) SAR imaging mode, which is a new method to extend the azimuth steering capability for phased array SAR to achieve either an improved azimuth geometric or radiometric resolution. It investigates the utility of steering directions with main lobe gains that are smaller than that of the grating lobes and exposes how these directions can be exploited. Furthermore, two methods are proposed to reduce the speckle and the image noise at once, i.e., the Look-Normalized Pattern Correction and the Ω-weighting. Based on two example TerraSAR-X WSS acquisitions, the image performance of extended and point targets is discussed.