Wrapped Staring Spotlight SAR for TerraSAR-X

Konferenz: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06.06.2016 - 09.06.2016 in Hamburg, Germany

Tagungsband: EUSAR 2016

Seiten: 4Sprache: EnglischTyp: PDF

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Mittermayer, Josef; Kraus, Thomas; Lopez-Dekker, Paco; Prats-Iraola, Pau; Krieger, Gerhard; Moreira, Alberto (Microwaves and Radar Institute, German Aerospace Center (DLR), Oberpfaffenhofen, Germany)

The paper proposes wrapped staring spotlight SAR, a method to extend the azimuth steering capability for phased array SAR systems. Based on two TerraSAR-X (TSX) wrapped staring spotlight example acquisitions, the image performance of point and extended and targets is discussed. In the provided examples, the steering is ex-tended until the gain of the grating lobes becomes much stronger than the gain into steering direction. By this, it becomes possible to improve the azimuth resolution by a factor of two when compared to that of the starring spotlight mode implemented in the operational TSX processing chain.