Advanced C-Band Instrument Based on Digital Beamforming

Conference: EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
06/07/2010 - 06/10/2010 at Aachen, Germany

Proceedings: EUSAR 2010

Pages: 4Language: englishTyp: PDF

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Schaefer, Christoph; Heer, Christoph (Astrium GmbH, Germany)
Ludwig, Michael (ESA/ESTEC, The Netherlands)

An ESA study is reported regarding the potential application of Digital Beam Forming techniques in a future Cband SAR instrument. The advanced technology elements required on board are essentially concentrated in a tile of the proposed phased array antenna. The architecture of the advanced tile is presented and technology requirements are given. The study has shown that compared to a state-of-the-art C-band instrument such as Sentinel-1 the imaging performance of the instrument can be increased by 400% at the cost of requiring roughly 50% more resources.