Unambiguous SAR Signal Reconstruction from Nonuniform Displaced Phase Center Sampling

Krieger G, Gebert N, Moreira A (2004)

Publication Type: Journal article

Publication year: 2004

Journal

IEEE Geoscience and Remote Sensing Letters Institute of Electrical and Electronics Engineers (IEEE)

Publisher: IEEE

Book Volume: 1

Pages Range: 260-264

Journal Issue: 4

URI: https://elib.dlr.de/6176/

DOI: 10.1109/LGRS.2004.832700

Abstract

The displaced phase center (DPC) technique will enable a wide-swath synthetic aperture radar (SAR) with high azimuth resolution. In a classic DPC system, the pulse repetition frequency (PRF) has to be chosen such that the SAR carrier moves just one half of its antenna length between subsequent radar pulses. Any deviation from this PRF will result in a nonuniform sampling of the synthetic aperture. This letter derives an innovative reconstruction algorithm and shows that an unambiguous reconstruction of a SAR signal is possible for nonuniform sampling of the synthetic aperture. This algorithm will also have great potential for multistatic satellite constellations as well as the dual receive antenna mode in Radarsat 2 and TerraSAR-X.

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:

Krieger, G., Gebert, N., & Moreira, A. (2004). Unambiguous SAR Signal Reconstruction from Nonuniform Displaced Phase Center Sampling. IEEE Geoscience and Remote Sensing Letters, 1(4), 260-264. https://doi.org/10.1109/LGRS.2004.832700

MLA:

Krieger, Gerhard, Nicolas Gebert, and Alberto Moreira. "Unambiguous SAR Signal Reconstruction from Nonuniform Displaced Phase Center Sampling." IEEE Geoscience and Remote Sensing Letters 1.4 (2004): 260-264.

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