Data Volume Reduction in High-Resolution Wide-Swath SAR Systems

Villano M, Krieger G, Moreira A (2015)

Publication Type: Conference contribution

Publication year: 2015

Publisher: Institute of Electrical and Electronics Engineers Inc.

Edited Volumes: Proceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015

Pages Range: 119-124

Conference Proceedings Title: Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)

ISBN: 9781467372961

URI: https://elib.dlr.de/96974/

DOI: 10.1109/APSAR.2015.7306169

Abstract

High-resolution wide-swath (HRWS) synthetic aperture radar (SAR) systems are very attractive for the observation of dynamic processes on the Earth's surface, but they are also associated with a huge data volume. In order to comply with azimuth ambiguity requirements, in fact, a pulse repetition frequency (PRF) much higher than the required processed Doppler bandwidth (PBW) is often desirable. The data volume can be drastically reduced, if on-board Doppler filtering and decimation are performed prior to downlink. A finite impulse response (FIR) filter with a relatively small number of taps suffices to suppress the additional ambiguous components and recover the original impulse response. This strategy is also applicable and especially relevant to staggered SAR systems, where on-board Doppler filtering and resampling can be jointly implemented.

Authors with CRIS profile

Gerhard Krieger

Additional Organisation(s)

Professur für Kognitive Radarsysteme für die Fernerkundung

Involved external institutions

Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) / German Aerospace Center DE Germany (DE)

How to cite

APA:

Villano, M., Krieger, G., & Moreira, A. (2015). Data Volume Reduction in High-Resolution Wide-Swath SAR Systems. In Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) (pp. 119-124). Institute of Electrical and Electronics Engineers Inc..

MLA:

Villano, Michelangelo, Gerhard Krieger, and Alberto Moreira. "Data Volume Reduction in High-Resolution Wide-Swath SAR Systems." Proceedings of the 5th IEEE Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015 Institute of Electrical and Electronics Engineers Inc., 2015. 119-124.

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