Adaptive Digital Beam-Forming Algorithm for High-Resolution, Wide-Swath Synthetic Aperture Radar
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چکیده
Intensive research is currently ongoing in the field of Smart Multi-Aperture Radar Techniques (SMART) for high-resolution wide-swath Synthetic Aperture Radar (SAR) imaging. This work investigates the possibility of applying direction of arrival estimation methods to spaceborne SMART SAR systems, that employ receive beam steering. A novel algorithm based on the actual spatial distribution of the received signal power is analyzed by Monte Carlo simulation versus the main system parameters. Its performance is compared with that of the conventional Scan-On-Receive approach. The Cramér Rao Lower Bound is also reported as a benchmark on the achieved performance.
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تاریخ انتشار 2009