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Autofocusing of inverse synthetic aperture radar images using contrast optimization

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2 Author(s)
Berizzi, F. ; Dipartimento di Ingegneria dell'Inf., Pisa Univ., Italy ; Corsini, G.

A number of autofocusing techniques are proposed for motion compensation in inverse synthetic aperture radar (ISAR) imaging of objects. These techniques are based on the optimization of a contrast function, which represents a measure of the degree of focus of the image. Three novel image contrast functions are defined and the main steps of the autofocusing algorithm are described. A comparison of the behavior of the proposed techniques is performed analyzing some results obtained from simulation of realistic targets.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:32 ,  Issue: 3 )