Synthetic aperture radar with active phased arrays
Synthetic aperture radar (SAR) with coherent focusing has been proposed in 1953 by C. W. Sherwin. It allows imaging of the ground scene in all weather conditions with high resolution using a radar on board a flying platform or satellite. The first actual systems applied optical processing for image generation. Since then many developments have achieved finer resolution and faster processing of received SAR signals by digital processing. New and extended capabilities can be achieved by applying an active phasedarray radar for SAR operation, including array signal processing methods as discussed in the preceding chapters. Opportunities are particularly good for the task of detecting, locating and imaging moving objects. The suppression of jamming may also be achieved.
Synthetic aperture radar with active phased arrays, Page 1 of 2
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