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Efficient Detection and Imaging of Moving Targets in SAR Images Based on Chirp Scaling

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4 Author(s)
Diego Cristallini ; DIET Department, University of Rome “La Sapienza”, Rome, Italy ; Debora Pastina ; Fabiola Colone ; Pierfrancesco Lombardo

An innovative scheme is presented for moving target detection and high-resolution focusing that exploits a bank of chirp scaling algorithms (CSA), each one matched to a different along track target velocity component. The new scheme is thought for multichannel (MC) synthetic aperture radar systems, to provide a high-resolution focusing of the moving targets. Adequate target detection capability is ensured by integrating the aforementioned bank of CSA with a post-Doppler space–time adaptive processing clutter cancellation step. The presented scheme is very efficient from a computational point of view and is able to achieve sub-clutter visibility for the moving targets. The effectiveness of the proposed techniques is shown with reference to an emulated MC data set.

Published in:

IEEE Transactions on Geoscience and Remote Sensing  (Volume:51 ,  Issue: 4 )