Journal ArticleDOI
Space-time processing for multichannel synthetic aperture radar
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TLDR
In this article, adaptive space-time processing (STAP) is simplified to frequency-dependent spatial processing in the Doppler domain for multichannel synthetic aperture radar (SAR) systems.Abstract:
Synthetic aperture radar (SAR) provides high-resolution images of a non-moving ground scene, but fails to indicate the presence and position of moving objects. As in airborne MTI (moving-target indication) systems the solution to this problem is to use an array of antennas or subapertures and several receiving channels ('MSAR', or multichannel SAR), and to apply multichannel clutter suppression. One of the most efficient methods is adaptive space-time processing (STAP), which can be simplified to frequency-dependent spatial processing in the Doppler domain. Some of these techniques applied to SAR are reviewed and illustrated with data gathered by the German experimental multichannel SAR system 'AER-II'.read more
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Journal ArticleDOI
A STAP overview
TL;DR: An overview of the space-time signal diversity and various forms of the adaptive processor, including reduced-dimension and reduced-rank STAP approaches for radar applications is discussed.
Journal ArticleDOI
Spaceborne bi- and multistatic SAR: potential and challenges
Gerhard Krieger,Alberto Moreira +1 more
TL;DR: In this paper, various spaceborne bi-and multistatic SAR configurations are introduced, and their potential for different applications such as frequent monitoring, wide-swath imaging, scene classification, single pass cross-track interferometry and resolution enhancement is compared.
Journal ArticleDOI
Very-High-Resolution Airborne Synthetic Aperture Radar Imaging: Signal Processing and Applications
Andreas Reigber,Rolf Scheiber,M. Jager,Pau Prats-Iraola,Irena Hajnsek,Thomas Jagdhuber,Konstantinos Papathanassiou,Matteo Nannini,Esteban Aguilera,Stefan V. Baumgartner,Ralf Horn,Anton Nottensteiner,Alberto Moreira +12 more
TL;DR: A review about the abilities and needs of today's very high-resolution airborne SAR sensors is given, based on and summarizing the longtime experience of the German Aerospace Center (DLR) with airborne SAR technology and its applications.
Journal ArticleDOI
A Generalization of DPCA Processing for Multichannel SAR/GMTI Radars
TL;DR: The expected GMTI performance of RADARSat-2 after EDPCA processing is compared to results achieved with measured RADARSAT-2 data recorded during several trials in order to validate the developed theory.
Journal ArticleDOI
Statistical analysis of multilook SAR interferograms for CFAR detection of ground moving targets
TL;DR: It is demonstrated, on the basis of experimental airborne SAR data, that the proposed completely automatic detection scheme with constant false-alarm rates (CFARs) for slow moving targets is capable of detecting slow moving vehicles within severe ground clutter.