Wrapped Staring Spotlight SAR

Josef Mittermayer; Thomas Kraus; Paco Lopez-Dekker; Pau Prats-Iraola; Gerhard Krieger; Alberto Moreira

doi:10.1109/TGRS.2016.2571340

Wrapped Staring Spotlight SAR

Josef Mittermayer, Thomas Kraus, Paco Lopez-Dekker, Pau Prats-Iraola, Gerhard Krieger, Alberto Moreira

Research output: Contribution to journal › Article › Scientific › peer-review

10 Citations (Scopus)

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.

Original language	English
Article number	7515225
Pages (from-to)	5745-5764
Number of pages	20
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	54
Issue number	10
DOIs	https://doi.org/10.1109/TGRS.2016.2571340
Publication status	Published - 1 Oct 2016
Externally published	Yes

Keywords

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

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10.1109/TGRS.2016.2571340

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title = "Wrapped Staring Spotlight SAR",

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.",

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AU - Mittermayer, Josef

AU - Kraus, Thomas

AU - Lopez-Dekker, Paco

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AU - Krieger, Gerhard

AU - Moreira, Alberto

PY - 2016/10/1

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AB - 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.

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Wrapped Staring Spotlight SAR

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Keywords

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